April 24, 2026
Senior Data Scientist, Risk and Fraud Management, Growth Alliance
Senior • Hybrid
23,200 - 34,700 PLN
Warsaw, Poland
Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month.
Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech.
HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future.
About the role: What's in the Box
As Senior Data Scientist in the Risk and Fraud Management squad, you will be responsible for building, deploying, and maintaining machine learning models that protect HelloFresh from fraud while enabling business growth through intelligent risk assessment. You will monitor model performance for anomalies and communicate insights with stakeholders to ensure optimal impact. Your work will be crucial to prevent payment and voucher fraud at checkout, and optimize the ship & collect process for recurring customers. Hence you will have a direct impact on the company's revenue protection and customer experience goals.
In this role, you will design and implement classification, regression, and uplift models which take into account various data sources, ranging from payment transactions, customer behavior, to fraud patterns and risk signals. Your models will power both real-time predictions at checkout and offline batch inference for subscription fulfillment decisions. Additionally, you will drive experiments to measure the business impact of your models and continuously improve their performance.
To succeed in this role you will be curious, a fast learner, and someone who relentlessly prioritises problem statements and tailor the solution accordingly. You will be comfortable suggesting multiple solutions based on your experience, and prioritizing tasks based on effort and likely impact. As a senior member of the Data Science team, you will jump into problem solving with others as challenges arise, and collaborate with team members.
What you’ll do: The Recipe
Work on fraud detection and risk assessment models from data collection to production, collaborating closely with cross-functional teams (engineering, product, finance, operations)
-
Build, deploy, and maintain machine learning models for:
Ship & Collect: Offline batch inference for recurring payment risk assessment and subscription fulfillment decisions
Voucher Fraud Prevention: Real-time inference at checkout to detect and prevent voucher abuse patterns
Payment Fraud Prevention: Real-time inference at checkout to detect and block fraudulent payment attempts
Monitor model performance, detect anomalies, and communicate insights and recommendations to technical and non-technical stakeholders
Leverage classification, regression, and uplift methodologies to continuously improve fraud prevention and risk assessment solutions
Proactively utilize Generative AI tools to accelerate development cycles, improve code quality, and drive innovative solutions to complex challenges
What you’ll bring: The Ingredients
Bachelors, Masters or PhD in statistics, physics, economics, mathematics, computer science, data science or similar
3+ years work experience as a (senior) data scientist, preferably in e-commerce, fintech, or fraud detection
Strong experience with classification and regression models; familiarity with uplift modeling is a plus
Fluency in Python (Numpy, Pandas, Scikit-learn, XGBoost, LightGBM) and experience with Spark/PySpark, Databricks
Experience with AWS services (SageMaker), workflow orchestration (Airflow/Prefect), and feature stores (Tecton is a plus)
In-depth knowledge of handling imbalanced datasets, optimizing precision/recall trade-offs, and evaluating models in production
Experience with real-time model inference, A/B testing, and measuring business impact of ML models
Familiarity with software development practices (Git, Docker, CI/CD pipelines)
Strong communication and collaboration capabilities with technical and non-technical stakeholders
Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you.
What we offer: The Toppings
Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing.
Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations.
Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup.
End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability.
Access to workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit).
Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Similar jobs you might like
Technology
HelloFresh
Senior Data Engineer, Growth Alliance
Senior
Hybrid
Warsaw, MZ, Poland
23,200 - 34,700 PLN
🏢 Summary: Senior Data Engineer role focused on building and scaling the foundational customer data layer to power personalization, segmentation, and AI/ML-driven marketing. The position involves designing, developing, and operating end-to-end data pipelines on a modern cloud stack, enabling real-time activations and unified customer views. You will work in cross-functional agile teams to optimize Databricks-based infrastructure and ensure high data quality at global scale. 🗂️ Requirements: Strong experience in data engineering, Proficiency in Python, Experience with PySpark, Experience with Kubernetes, Experience with AWS services, Experience with relational databases, Experience with object storage systems, Experience building and optimizing data pipelines, Knowledge of data modeling, Understanding of backend development, Experience with DevOps practices, Experience working with AI coding agents 📃 Skills: Python, PySpark, Kubernetes, AWS, EMR, Glue, S3, Kafka, Airflow, Prefect, Tecton, Databricks, PostgreSQL, SQL, DevOps, AI, Claude, Cursor, Copilot 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box As a Senior Data Engineer on the Marketing Customer Profile team under Growth Alliance, you will design and scale the foundational data layer that powers high-impact personalization and real-world segmentation. You will be responsible for integrating diverse data sources into a unified customer view, enabling advanced AI/ML modeling and real-time marketing activations. By optimizing our Databricks-based infrastructure, you will ensure our data is the engine behind every personalized customer journey. At HelloTech, flexibility and cross-functional collaboration are core to how we work. While this role is aligned to a specific Alliance, strong candidates may also be considered for opportunities across different teams or projects. What you’ll do: The Recipe Work on the end-to-end process, including architecture, design, development, deployment, and operations of data pipelines, applying DevOps practices, pair programming, and other cutting-edge methodologies. Be an active, solution-oriented contributor within autonomous, cross-functional agile teams collaborating with Product Owners, Back-end Engineers, Front-end Engineers, Product Analysts, and Business Intelligence teams. Demonstrate an in-depth understanding of HelloFresh’s core product and architecture, acting as a technical expert for software solutions and offering support to colleagues. Work with state-of-the-art technologies like AWS (EMR, Glue, s3, etc), Kafka, PySpark, Kubernetes, Airflow, Prefect, Tecton, Databricks, as well as in-house Data Pipeline tools. What you’ll bring: The Ingredients Strong background in data engineering with a focus on writing clean, maintainable Python code Proficient in working with cloud platforms and data technologies such as PySpark and Kubernetes. Streaming technologies is a plus. Skilled in designing scalable data models and working with relational databases (e.g., PostgreSQL) and object stores (e.g., AWS S3) Basic understanding of Backend Development Track record of building and optimizing efficient, reliable data pipelines Committed to ensuring data quality, implementing monitoring practices, and maintaining high testing standards across the development lifecycle Comfortable in agile environments, embracing fast iterations, lean principles, and continuous delivery Solid hands-on experience working with AI coding agents (e.g., Claude Code, Cursor, Copilot) beyond casual experimentation. You use AI agents as thought partners to onboard on unfamiliar codebases and navigate new areas of the code with confidence. You have a practical sense of how the context you provide to AI tools - specifications, constraints, examples - shapes output quality, and a developing awareness of how agentic outputs can fail, with growing habits around verifying, testing, and setting boundaries on AI-generated work. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Senior Data Engineer, Global Data Products
Senior
Hybrid
Warsaw, Poland
23,200 - 34,700 PLN
🏢 Summary: Senior Data Engineer role focused on building and scaling core data products that enable data-driven decision-making across the organization. The position involves designing robust ETL pipelines, improving data workflows, and delivering reliable, production-ready data solutions using modern data technologies. You will collaborate with cross-functional teams to develop high-quality, scalable data assets and metrics used globally. 🗂️ Requirements: Extensive experience in data engineering, Strong engineering fundamentals and ability to design maintainable code, Proven delivery of scalable production-ready solutions, Expert-level SQL and query optimization, Proficiency in Python, Hands-on experience with Apache Spark or equivalent, Experience building and maintaining ETL pipelines, Experience with data quality and governance practices, Ability to collaborate with data producers and stakeholders 📃 Skills: SQL, Python, Spark, Snowflake, Databricks, DBT, Kafka, ETL 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box We are a cross-functional team that integrates data engineers and data analysts. Our objective is to establish a dependable groundwork for data-driven decision-making. This role holds significance across the organization, tasked with constructing foundational data assets and metrics. As a Senior Data Engineer in Core Data Products, the focus is on collaborating to build robust and highly reliable data products using cutting-edge technologies (Snowflake, Databricks, DBT, Spark, Kafka etc). This involves working on the continuous improvement of current data processing workflows; whilst engaging with data producers and consumers to align business requirements with the roadmap. What you’ll do: The Recipe Build and maintain complex and scalable ETL pipelines Work closely with the data producers and software developers Collaborate closely with different stakeholders such as Marketing, Product Analytics, etc. Drive data quality and governance Work together with our cross-organizational data engineering chapter to adapt the latest tools and techniques to the needs of HelloFresh. What you’ll bring: The Ingredients Solid hands-on experience working with AI coding agents (e.g., Claude Code, Cursor, Copilot) beyond casual experimentation. You use AI agents as thought partners to onboard on unfamiliar codebases and navigate new areas of the code with confidence. You have a practical sense of how the context you provide to AI tools - specifications, constraints, examples - shapes output quality, and a developing awareness of how agentic outputs can fail, with growing habits around verifying, testing, and setting boundaries on AI-generated work. Extensive experience of engineering fundamentals and able to design, implement and deliver maintainable and high-quality code Track record of delivering scalable, production-ready solutions Mastery of SQL and query optimization techniques Strong problem-solving acumen Proficiency in Python stack Exceptional technical background and a demonstrated clear impact on achieving business goals Strong written and verbal communication skills, ability to build effective communication structures in a fast-growing engineering organization Extensive experience with Apache Spark or equivalent What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point: The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Senior Data Engineer, Menu Personalization
Senior
Hybrid
Warsaw, Poland
244,000 - 347,600 PLN
🏢 Summary: Senior Data Engineer role focused on building and operating large-scale data and ML platforms powering menu personalization and recommendation systems across global markets. The position involves designing batch and streaming pipelines, developing a feature store, and enabling reliable model training and real-time inference in a modern cloud environment. You will collaborate cross-functionally to bring ML models from experimentation to production and ensure scalable, high-quality data infrastructure. 🗂️ Requirements: Bachelor’s, Master’s or PhD in Computer Science, Software Engineering or related field, 5+ years of experience as a Data Engineer delivering production data systems, Strong proficiency in Python and PySpark, Strong SQL skills for large-scale data processing, Experience building large-scale data pipelines on cloud platforms, Experience with Git, CI/CD and Docker, Hands-on experience with AWS services, Experience operationalizing ML models and data systems in production, Ability to collaborate with Data Scientists and ML Engineers on production ML systems 📃 Skills: Python, PySpark, SQL, AWS, EMR, Glue, S3, Kafka, Airflow, Databricks, MLflow, Docker, Git, CI/CD, Claude, Copilot 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the Team Menu Personalization decides what millions of customers see when they open HelloFresh each week. The team owns the recommender systems that match customers to recipes across our global markets, and brings together Data Scientists, Backend Engineers, Data Engineers, ML Engineers, and Product to take ideas from experiment to production. The work directly shapes customer experience and business growth: when personalization gets better, customers find recipes they love faster, and HelloFresh becomes a stronger weekly habit. About the role: What's in the Box This position is for an expert in building large-scale data and ML platforms. You will join a high-impact team of data scientists and engineers, focusing exclusively on menu personalization. As a Senior Data Engineer, you will play a pivotal part in designing, implementing, and operating the data pipelines and feature platform that power personalized recommendation algorithms for culinary products across global markets. You will have a tangible impact on customer experience and business growth by ensuring the data and ML infrastructure that fuels personalization is reliable, performant, and easy to build on. You will work closely with Data Scientists to take models from notebook to production, partner with Backend and ML Engineers on online inference paths, and shape how the team manages features and training datasets at scale. Success in this role requires a curious mindset, the ability to prioritize problem statements, and the expertise to translate ML requirements into robust data systems. At HelloTech, flexibility and cross-functional collaboration are core to how we work. While this role is aligned to a specific Alliance, strong candidates may also be considered for opportunities across different teams or projects. What you’ll do: The Recipe Become an integral part of a high-impact team covering menu personalization. Design, build, and operate batch and streaming data pipelines that power model training and real-time inference. Build high-quality, well-modeled data pipelines for analytical purposes, enabling reliable reporting, experimentation analysis, and self-serve insight across the team. Build and evolve the team's Feature Store, ensuring point-in-time correctness for training and low-latency online serving. Partner with Data Scientists to operationalize recommender models, embeddings pipelines, and continuous retraining. Make ML systems observable through data quality checks, training/serving skew detection, and lineage. Work with state-of-the-art technologies like AWS (EMR, Glue, S3, etc), Kafka, PySpark, Airflow, Databricks, MLFlow, and Claude (AI). Collaborate closely within other functions (data science, ML engineering, backend engineering, product) to translate business objectives into concrete data infrastructure. Contribute to a collaborative and knowledge-sharing environment, providing technical guidance and coaching to team members and stakeholders. What you’ll bring: The Ingredients Proven track record of scientific or engineering work (Bachelor's, Master's, or PhD) in computer science, software engineering or related field. 5+ years of work experience as a Data Engineer, including delivery of production data. Fluency in Python and PySpark and building large scale high quality data pipelines on a modern cloud stack Technical proficiency in SQL for retrieving, manipulating, and analyzing large datasets. Experience with software development practices and tools such as Git, CI/CD, Docker, and AWS. Expertise in leveraging Generative AI tools (e.g., Claude, Copilot) to support development, experimentation, and documentation. Exceptional communication capabilities to interact effectively with Data Scientists, ML Engineers, product managers, and business stakeholders. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days. #DATA #ENGINEERING
Technology
HelloFresh
Senior Backend Engineer, Growth Alliance
Senior
Hybrid
Warsaw, Poland
23,200 - 34,700 PLN
🏢 Summary: Backend-focused role in a cross-functional team building AI-powered, event-driven systems that automate customer communication campaigns across channels at global scale. You will design, develop, and operate scalable microservices handling large-scale data and machine-learning–driven decisioning. The position involves end-to-end ownership from architecture to production within a modern, agile environment. 🗂️ Requirements: Strong Python development experience across full lifecycle, Experience with event-driven microservices architecture, Hands-on work with RabbitMQ or Kafka, Experience with relational databases (PostgreSQL), Experience with AWS S3 or object storage, Experience with monitoring tools (Prometheus, Grafana, or Datadog), Experience with CI and automated testing (unit, integration, functional), Experience integrating external APIs or third-party systems, Hands-on use of AI coding agents in development workflow, Experience working in agile environments 📃 Skills: Python, RabbitMQ, Kafka, PostgreSQL, S3, AWS, Prometheus, Grafana, Datadog, Microservices, CI, APIs, AI, Claude, Cursor, Copilot 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box You will work with a cross-functional team responsible for how HelloFresh communicates with its customers at scale. The project involves supporting backend-driven, AI-powered systems that automate campaign execution end-to-end — from campaign configuration and content generation to validation, quality checks, and orchestration across channels such as email, SMS, and push. Working with large-scale data and machine-learning–driven decisioning, you will support the design and operation of reliable, scalable services that reduce manual effort while improving speed, consistency, and customer relevance. At HelloTech, flexibility and cross-functional collaboration are core to how we work. While this role is aligned to a specific Alliance, strong candidates may also be considered for opportunities across different teams or projects. What you’ll do: The Recipe Collaborate within an autonomous, cross-functional agile team of 6–10 people, working closely with Product Owners, Frontend Engineers, Data Engineers, and Business Intelligence teams to deliver impactful solutions. Work on the architecture, design, development, deployment, and operations of our microservices, autonomously driving complex business challenges from conception to resolution. Build and maintain robust event-driven systems using state-of-the-art technologies. Leverage modern AI tools and DevOps practices to enhance productivity, strategically utilizing methodologies like vibe coding and pair programming. Support colleagues by sharing practical knowledge, trends, and technical insights, contributing to an environment where technical perspectives are valued. What you’ll bring: The Ingredients Expertise in Python development, covering the full lifecycle from unit, integration, and functional testing to application tuning, profiling, and continuous integration. Solid background in event-driven microservices architecture, utilizing tools such as RabbitMQ or Kafka. Proficiency with data storage, including relational databases like PostgreSQL and object stores like AWS S3. Strong agile mindset, with a focus on lean thinking, quick iterations, and continuous delivery in a fast-paced environment. Ability to utilize monitoring solutions like Prometheus, Grafana, or Datadog to ensure system health. Experience integrating external systems, such as third-party vendors, APIs, marketing platforms, or messaging services, is a strong plus. Curiosity and drive, seeking to continuously develop yourself, learn from peers, and act as an ambassador for AI mentality within the team. Solid hands-on experience working with AI coding agents (e.g., Claude Code, Cursor, Copilot) beyond casual experimentation. You use AI agents as thought partners to onboard on unfamiliar codebases and navigate new areas of the code with confidence. You have a practical sense of how the context you provide to AI tools - specifications, constraints, examples - shapes output quality, and a developing awareness of how agentic outputs can fail, with growing habits around verifying, testing, and setting boundaries on AI-generated work. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Senior Backend Engineer, Food Systems (SCM)
Senior
Hybrid
Warsaw, Poland
21,700 - 29,000 PLN
🏢 Summary: Backend engineering role focused on building and evolving scalable software products and workflow tools supporting HelloFresh’s global food supply chain operations. The position involves enhancing Python-based systems, optimizing data-heavy processes, and contributing to modular, production-ready backend architectures used across multiple regions. 🗂️ Requirements: Extensive backend engineering experience, Deep mastery of Python, Experience with SQL and data modeling, Experience building data-heavy products or in Data Engineering, Experience designing modular systems with synchronous and asynchronous communication, Familiarity with AWS and Kubernetes, Ability to translate business requirements into technical solutions 📃 Skills: Python, SQL, Kotlin, Golang, Airflow, Pandas, AWS, Kubernetes 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box You will collaborate with the Food Systems Alliance at a pivotal moment as the organization transitions from bespoke operational tooling toward scalable software products that support the global supply chain. In this role, you’ll help translate complex business processes — such as route planning, procurement, and menu planning — into robust and reliable technical solutions. Your initial focus will be enhancing and optimizing Python-based tools that support day-to-day production operations, while contributing longer term to the development of modular, globally scalable systems that support HelloFresh’s food supply chain across multiple regions. What you’ll do: The Recipe Design and develop software products and workflow tooling supporting global supply chain operations, from ingredient planning to logistics. Contribute to the evolution of existing tooling and data processes into modular, scalable backend solutions aligned with HelloFresh’s growth. Work closely with stakeholders across Procurement, Production, and Data Engineering to help translate operational requirements into technical solutions. Contribute to engineering best practices around code quality, reliability, maintainability, and system design within the broader engineering setup. Improve and optimize complex data workflows and production logic to support evolving operational needs. Support knowledge sharing and collaboration across engineers through activities such as code reviews, technical discussions, and documentation. What you’ll bring: The Ingredients Extensive backend engineering experience within JVM-based ecosystems such as Kotlin or Java. Experience with Python is a plus, especially in operational or workflow-heavy environments. Strong experience building scalable backend systems and services, including familiarity with event-driven architectures and messaging technologies such as Kafka, RabbitMQ, or SQS. Basic SQL and data modeling skills, with the ability to work confidently in data-heavy domains. Exposure to tools like Airflow, Databricks, or Pandas is beneficial but not required. Experience designing modular, maintainable systems and translating complex business processes into reliable technical solutions. Familiarity with modern cloud and infrastructure tooling such as AWS, Kubernetes, CI/CD pipelines, and observability practices. An agile and product-minded approach to problem solving, with the ability to navigate ambiguity, collaborate closely with stakeholders, and proactively shape solutions. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Senior Backend Engineer, Data
Senior
Hybrid
Warsaw, Poland
230,300 - 340,400 PLN
🏢 Summary: Project-based role within the Data Management and Governance team focused on building and operating scalable microservices and data privacy solutions. The position centers on implementing encryption, automated customer data deletion, and data lineage capabilities in a modern DevOps environment. You will work across the full stack and infrastructure to deliver secure, compliant, and high-quality data systems at global scale. 🗂️ Requirements: Extensive experience with Kotlin, JVM languages, or Golang, Strong knowledge of data structures and algorithms, Experience building microservices using DevOps practices, Hands-on experience with Docker and Kubernetes, Experience working with CI/CD pipelines, Solid frontend experience with React or NextJS, Experience integrating frontend and backend services, Knowledge of relational and document databases, Experience with event-driven architectures, Experience with Kafka or RabbitMQ 📃 Skills: Kotlin, Java, Golang, HTML, CSS, JavaScript, React, Redux, NextJS, Docker, Kubernetes, Istio, Kafka, RabbitMQ, SQL, NoSQL, CI/CD, TDD, DDD 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box The service provider will contribute to the Data Management and Governance team within the Data Alliance. This project-based collaboration focuses on ensuring the organization’s data remains well-organized, secure, and compliant with global regulatory standards. You will provide expertise in designing and implementing data privacy tools, encryption services, and CSRD initiatives, specifically focusing on automated customer data deletion and maintaining high-quality data lineage. What you’ll do: The Recipe Service Delivery & Architecture: Take responsibility for the architecture, design, and deployment of microservices using DevOps practices and pair programming. Privacy Tooling Implementation: Develop and maintain specialized tools for data encryption and the secure deletion of customer data in accordance with privacy regulations. Cross-Functional Collaboration: Serve as a solution-oriented expert within an agile environment, collaborating with product owners, architects, and business intelligence teams to align data processes with organizational requirements. Systems Operations: Manage the end-to-end lifecycle of products, ensuring scalability and maintainability through modern technologies like Kubernetes and Istio. Technical Excellence: Advocate for and implement best engineering practices, including CI/CD, TDD, and Domain-Driven Design (DDD). Knowledge Sharing: Provide technical guidance and support to other engineers, conducting knowledge-sharing sessions to elevate the collective technical standards of the alliance. What you’ll bring: The Ingredients Technical Proficiency: Extensive experience with Kotlin, other JVM languages, or Golang, backed by a strong command of data structures and algorithms. Full-Stack Capabilities: Solid experience with frontend technologies including HTML, CSS, JavaScript, and component-based architectures using React/Redux or NextJS. Integration Expertise: Proven track record of binding complex frontend and backend services together into seamless user experiences. Infrastructure & DevOps: Practical experience with Docker, Kubernetes, and deploying code within fast-paced, automated CI/CD environments. Data Systems: Deep understanding of both relational and document databases, alongside event-driven architectures using Kafka or RabbitMQ. Collaborative Mindset: Ability to provide technical mentorship and share practical trends with cross-functional partners. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point: The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Data Engineer, Consumer Alliace
Mid
Hybrid
Warsaw, Poland
16,000 - 21,400 PLN
🏢 Summary: The role focuses on building and maintaining scalable, reliable data products and ETL pipelines within a global data platform, enabling data-driven decision-making across the organization. As a Data Engineer, you will work with modern cloud and big data technologies to design, improve, and govern foundational data assets used by multiple business domains. The position emphasizes technical excellence, cross-functional collaboration, and continuous improvement of data processing workflows. 🗂️ Requirements: Experience building and maintaining complex ETL pipelines, Proficiency in SQL, Proficiency in Python, Experience with big data processing frameworks, Experience with cloud data platforms, Experience using AI coding agents in development workflow, Strong understanding of data modeling techniques, Experience ensuring data quality and governance, Knowledge of CI/CD and TDD practices, Strong engineering fundamentals 📃 Skills: SQL, Python, Snowflake, Databricks, DBT, Spark, Kafka, ETL, CI/CD, TDD, AI, Claude, Copilot, Cursor 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box The Global Data Products team is a cross-functional unit that integrates data engineers and data analysts. The objective is to establish a dependable groundwork for data-driven decision-making. This role holds significance across the organization, tasked with constructing foundational data assets and metrics. As a Data Engineer, the service provider will collaborate to build robust and highly reliable data products using cutting-edge technologies (Snowflake, Databricks, DBT, Spark, Kafka, etc.). This involves driving continuous improvement to current data processing workflows while engaging with data producers and consumers to align business requirements with the roadmap. This role does not include people management responsibilities. At HelloTech, flexibility and cross-functional collaboration are core to the delivery of services. While this role is aligned to a specific Alliance, strong candidates may also be considered for opportunities across different teams or projects. What you’ll do: The Recipe Build and maintain complex and scalable ETL pipelines Work closely with the data producers and software developers Collaborate closely with different stakeholders such as Marketing, Product Analytics, etc. Drive data quality and governance Collaborate with the cross-organizational data engineering chapter to adapt the latest tools and techniques to the needs of HelloFresh. Review as a technical expert the implementations of multiple teams, continuously improving technical deliverables. What you’ll bring: The Ingredients Agentic Engineering: Meaningful experience using AI coding agents (e.g., Claude Code, Cursor, Copilot) as part of your regular workflow. You use AI agents as thought partners to onboard on unfamiliar codebases and navigate new areas of the code. You are developing a feel for how the way you frame tasks for AI tools affects the quality of results, and for where AI assistance needs closer supervision. You are curious about how and why AI tools fail and are building habits around verification. Strong understanding of engineering fundamentals and the ability to design, implement, and deliver maintainable and high-quality code. Strong problem-solving acumen. Proficiency in SQL and the Python stack. Strong written and verbal communication skills; the ability to build effective communication structures in a fast-growing engineering organization. Bonus points: Treating data quality issues as engineering problems to solve; experience debugging Spark pipelines; and demonstrated experience with data modeling techniques. A team player attitude and a passion for advocating for best engineering practices, such as CI/CD, TDD, and Design Patterns. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point: The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Senior Backend Engnieer, Consumer
Senior
Hybrid
Warsaw, Poland
230,300 - 345,400 PLN
🏢 Summary: Engineering role within the Shopping Foundations Squad (Cart Foundation) delivering scalable backend microservices for a global e-commerce platform serving millions of users. The position focuses on optimizing subscription and cart management through robust, event-driven architectures and DevOps practices. You will design, build, and operate high-performance systems using a modern cloud-native tech stack. 🗂️ Requirements: Strong backend development experience, Experience with monolithic and microservices architectures, Experience with distributed event-driven systems, Proficiency in Golang, Kotlin or PHP, Experience with Docker and Kubernetes, Experience building CI/CD pipelines, Knowledge of TDD, BDD and DDD practices, Experience with RabbitMQ or Kafka, Experience with MongoDB and PostgreSQL, Experience with Elasticsearch 📃 Skills: Golang, Kotlin, PHP, Docker, Kubernetes, Kafka, RabbitMQ, MongoDB, PostgreSQL, Elasticsearch, CI/CD, TDD, BDD, DDD, Microservices, GraphQL 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box The service provider will contribute to the Consumer Mega Alliance within the Shopping Foundations Squad, specifically focusing on the Cart Foundation. The primary objective of this collaboration is to provide high-level engineering services that maximize the retention of active customers by optimizing how they manage subscriptions and order products. This role involves delivering scalable backend solutions for a platform that serves millions of global users, ensuring a seamless experience across the HelloFresh digital ecosystem. What you’ll do: The Recipe Deliver high-quality architecture, design, and development services for microservices, ensuring robust deployment and operational stability using DevOps practices. Provide expertise within autonomous, cross-functional agile teams, collaborating closely with Product Owners, Front-end Engineers, and Designers to meet project milestones. Apply an in-depth understanding of core product architecture to act as a technical authority, offering support and knowledge sharing to other contributors. Execute technical tasks using a state-of-the-art stack, including Golang, Kafka, Docker, and Kubernetes. Perform problem-solving services across a wide range of platforms and environments to ensure system reliability and performance. What you’ll bring: The Ingredients Solid experience in backend development, covering Monolithic, Microservices, and distributed event-driven architectural patterns. Proficiency in languages such as Golang, Kotlin, and/or PHP. Proven track record of delivering services using Docker and container orchestration technologies like Kubernetes. Extensive experience in implementing true Continuous Integration & Continuous Delivery (CI/CD) pipelines. Practical application of TDD, BDD, DDD, and distributed architectural patterns. Background in developing event-driven architectures utilizing RabbitMQ and/or Kafka. Experience working with MongoDB, PostgreSQL, and Elasticsearch. Familiarity with e-commerce, subscription-based business models, and GraphQL integration is considered a significant advantage. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point: The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Backend Engineer, Operations Technology (all genders)
Mid
Hybrid
Warsaw, Poland
16,000 - 24,000 PLN
🏢 Summary: Software Engineer role focused on building and scaling distributed supply chain systems that power global procurement, demand forecasting, and inventory replenishment. The position involves developing high-availability microservices and data pipelines using modern cloud-native technologies to support automated, data-driven decision-making. You will work in a cross-functional agile team to design, deliver, and operate scalable backend services in a global environment. 🗂️ Requirements: Strong professional experience in software development, Proficiency in Kotlin or Java, Experience building and operating microservices in distributed systems, Experience with containerization technologies, Experience with stream processing systems, Experience with relational or document databases, Understanding of CI/CD practices, Ability to design scalable and highly available systems 📃 Skills: Kotlin, Java, Kafka, Kubernetes, Docker, AWS, PostgreSQL, MongoDB, Next.js, Redux, CI/CD, Microservices 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box As a Software Engineer within the Food Systems Alliance in Supply Chain Management (SCM), you will be building and scaling the core systems that power HelloFresh’s global procurement process. You will contribute to the design and operation of distributed systems supporting automated demand forecasting and inventory replenishment across our global network, directly impacting our efficiency and sustainability. This platform uses modern technologies and data science to make crucial decisions about ingredient flow, ensuring high quality and optimal delivery for our customers. You will have a unique opportunity to grow your expertise in supply chain technology while collaborating with cross-functional product, data, and operations partners to solve complex, real-world problems. At HelloTech, flexibility and cross-functional collaboration are core to how we work. While this role is aligned to a specific Alliance, strong candidates may also be considered for opportunities across different teams or projects. What you’ll do: The Recipe Design and implement reliable, high-quality technical features for our core supply chain microservices and data pipelines. Collaborate closely with a cross-functional agile team, typically 6-8 people, to break down complex requirements and deliver robust solutions. Apply modern engineering practices like DevOps, Continuous Delivery, and cloud-native development to build resilient and observable services on a large scale. Contribute to the architectural discussions and technical roadmap for your team’s services, focusing on high availability and scalability. Work within a modern tech stack, applying strong proficiency in backend languages like Kotlin and leveraging tools such as Kafka , Kubernetes , and AWS . Debug and resolve issues in production systems, ensuring the stability and performance of services that handle large volumes of asynchronous data. What you’ll bring: The Ingredients Strong professional experience in software development with demonstrable problem-solving skills and proficiency in a backend language such as Kotlin or Java , familiarity with front-end technologies like Next.js/Redux is a plus. Practical experience in building, and operating microservices in a distributed system environment. Familiarity with modern technologies, including containerization ( Docker/Kubernetes ), stream processing ( Kafka ), and relational/document databases (e.g., PostgreSQL/MongoDB ). A solid understanding of end-to-end development processes, including testing and continuous integration/delivery ( CI/CD ). An agile mindset and a dedication to cross-functional collaboration and knowledge sharing within your team. A passion for tackling complex technical challenges and a willingness to learn and grow within an autonomous, high-impact domain. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw WeWork Mennica Towers. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.
Technology
HelloFresh
Staff Engineer
Senior
Hybrid
Warsaw, Poland
291,900 - 486,500 PLN
🏢 Summary: Contract role in the Recipe Engagement Squad focused on building and scaling high-traffic Go microservices that power recipe ratings, favorites, and customer feedback across global meal platforms. The position involves designing GraphQL APIs, implementing GenAI-driven features, and ensuring reliability of distributed systems used by millions of users. You will own end-to-end delivery from technical design to production rollout in a modern, cloud-native environment. 🗂️ Requirements: Deep expertise in Go (Golang), Experience building high-traffic distributed microservices, Experience with PostgreSQL, Redis, and Kafka in production, Proficiency in GraphQL schema design and Apollo Federation, Experience implementing production-grade GenAI features, Strong knowledge of distributed systems patterns, Experience with Kubernetes and AWS, Experience with monitoring and observability tools, Ability to deliver end-to-end features from design to production 📃 Skills: Go, Golang, PostgreSQL, Redis, Kafka, GraphQL, Apollo, GenAI, Kubernetes, AWS, Prometheus, Grafana, OpenTelemetry, Honeycomb, Datadog 🏢 Description: Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, HelloTech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by HelloTech. HelloTech works in autonomous, cross-functional alliances, each owning a specific product or domain end to end. By working with our Warsaw office, you will help shape scalable, data-driven products used across our markets, working with a modern tech stack and international teams to continuously improve how people discover, order, and enjoy HelloFresh’s products, today and in the future. About the role: What's in the Box You will contribute to the Recipe Engagement Squad within a large-scale meal-kit and ready-to-eat platform. This project focuses on the delivery of high-scale systems that capture and surface customer feedback and engagement across multiple global brands. The contractor will provide expert technical services to ensure millions of customers can effortlessly share opinions and save favorite meals, directly enabling the data-driven improvement of recipe offerings. What you’ll do: The Recipe Delivery of high-scale Go microservices powering recipe ratings, favorites, and feedback systems using PostgreSQL, Redis, and Kafka. Design and extension of GraphQL APIs within an Apollo Federation subgraph architecture for mobile and web client consumption. Execution of GenAI strategies, including the prototyping and implementation of production-grade features such as personalization and advanced feedback analysis. Service delivery for end-to-end features, from initial RFC technical design to production rollout using multi-market feature flags. Ensuring system reliability and observability through the implementation of monitoring via Grafana, Prometheus, and OpenTelemetry. Provision of technical guidance and architectural evolution across the domain to mitigate long-term technical risks. Collaboration with primary stakeholders in mobile, web, and product design to refine project requirements and demonstrate deliverables. Leading technical initiatives and streamlining delivery processes to reduce implementation churn and improve quality. What you’ll bring: The Ingredients Deep expertise in Go (Golang) and the design of high-traffic distributed systems. Proven experience operating microservices with large datasets using PostgreSQL, Redis, and Kafka. Technical proficiency in GraphQL schema design and federation patterns (Apollo). Practical experience in integrating production-grade GenAI features and using AI-assisted development tools. Advanced knowledge of distributed systems patterns, including cache-aside, outbox patterns, and event-driven architecture. Technical command of Kubernetes and AWS for containerized service operations. Experience with observability and tracing tools such as Prometheus, Grafana, Honeycomb, or Datadog. Expertise in agile delivery focused on DORA metrics and iterative software releases. Commitment to service quality, including thorough testing and technical peer reviews. Above all, we are looking for individuals who will make HelloFresh better. We believe there are many different ways of developing skills and we love diverse experiences! So even if you don’t “tick all the boxes” but think you’d thrive in this role, we would really like to learn more about you. What we offer: The Toppings Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing. Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations. Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup. End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability. Access to workspace at Warsaw Centre Point: The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit). Are you the missing ingredient? If this sounds like a tasty opportunity, we’d be excited to hear from you. We aim to review your profile and respond within 5 business days.