Senior Data Engineer, Menu Personalization

🏢 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.

🏢 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.

🏢 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.

🏢 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.

🏢 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.

🏢 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.

🏢 Summary: Staff Backend Engineer role focused on designing and scaling intelligent, event-driven microservices that power hyper-personalized customer experiences across global platforms. The position drives technical strategy, architecture, and execution for distributed systems supporting recommendations, dynamic content, and large-scale personalization. It combines hands-on backend development with technical leadership in a cloud-native environment. 🗂️ Requirements: 8+ years of backend engineering experience, Expertise in microservices architecture, Experience with distributed event-driven systems, Proficiency in Go, PHP, or JVM languages, Experience leading large-scale technical projects, Experience making architectural decisions in complex distributed systems, Experience with Docker and Kubernetes in production, Experience with cloud-native architectures, Experience with message bus technologies, Strong knowledge of relational and NoSQL databases, Experience with database performance optimization and schema design 📃 Skills: Go, PHP, Java, JVM, Docker, Kubernetes, Kafka, RabbitMQ, SQS, SNS, SQL, NoSQL, GraphQL, Microservices, Cloud, DistributedSystems 🏢 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 Staff Backend Engineer, the role involves driving the technical vision and execution for the intelligent systems that power personalized experiences across global brands. This position supports the platform layer that delivers tailored recommendations, dynamic content, and individualized customer journeys at scale. As the menu prepares to scale by 10x and more, the focus will be to build the backbone for hyper-personalization, as well as design and deploy the personalization models and services that drive engagement across the global customer base. Tasks include providing technical leadership, fostering engineering excellence, and collaborating with senior stakeholders to align technical strategy with business objectives. 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 architecture, design, and technical strategy for complex microservices systems, establishing patterns and best practices across multiple teams. Drive technical decision-making and architectural reviews, ensuring scalability, reliability, and maintainability of platform systems. Support engineers across the organization, fostering technical growth and promoting engineering excellence. Lead critical technical initiatives and cross-team projects, collaborating with technical leadership and cross-functional partners to align technical strategy with business objectives. What you’ll bring: The Ingredients Agentic Engineering: Strong hands-on experience working with AI coding agents (e.g., Claude Code, Cursor, Copilot) in production or near-production environments. You think beyond prompts to context engineering, structuring specifications, tool configurations, and information flow so agents produce reliable results. You can reason about how to decompose complex workflows across multiple agentic components and identify when agentic outputs are unreliable, diagnosing problems to improve outputs in an iterative way. You have strong processes around adding guardrails, both in understanding where and when they’re needed and how to implement them. 8+ years of backend engineering experience with deep expertise in microservices and distributed event-driven architectural patterns Expert-level proficiency in at least one of the programming languages: Go, PHP, and/or JVM languages Proven track record of leading large-scale technical projects and driving architectural decisions in complex distributed systems Advanced experience with Docker, Kubernetes, and cloud-native architectures, including production operations at scale Extensive experience building event-driven architectures using message bus technologies (Kafka, RabbitMQ, SQS/SNS, etc.) Deep expertise with database technologies (relational and  NoSQL), including performance optimization, schema design, and operational best practices Demonstrated ability to mentor engineers and drive technical standards across teams Excellent communication and collaboration skills, with experience working with senior stakeholders and distributed teams GraphQL experience for client-backend integration is a plus 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.

🏢 Summary: Technical leadership role focused on designing scalable backend systems and driving architecture decisions for global supply chain operations within HelloFresh’s Food Systems Alliance. The position involves leading cross-team engineering initiatives, optimizing event-driven systems, and mentoring engineers while working with modern cloud and distributed technologies. 🗂️ Requirements: Backend engineering expertise in JVM ecosystems, Experience with Kotlin or Java, Knowledge of distributed systems, Experience with microservices architecture, Experience designing scalable event-driven systems, Knowledge of Kafka, RabbitMQ, or SQS, Understanding of AWS, Experience with Kubernetes, Knowledge of observability practices, Ability to translate business requirements into technical roadmaps, Technical leadership and mentoring skills 📃 Skills: Kotlin, Java, JVM, Kafka, RabbitMQ, SQS, AWS, Kubernetes, 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 You will contribute to the success of the Food Systems Alliance by providing technical leadership across multiple engineering teams and business domains. At a pivotal stage in our transition from bespoke operational tooling to globally scalable software products, you will help shape architecture, drive technical decision-making, and translate complex supply chain processes into robust, maintainable systems. Working closely with engineers and operational stakeholders, you will influence technical direction, promote engineering best practices, and support the delivery of scalable solutions that power HelloFresh's global supply chain operations. What you’ll do: The Recipe Lead cross-squad technical initiatives to design and build modular, globally scalable backend solutions for complex supply chain operations. Act as the technical bridge between engineering squads and operational stakeholders (Procurement, Production, Data) to architect reliable, long-term systems. Define and drive engineering best practices around system design, code quality, and maintainability across the entire Food Systems Alliance. Optimize complex data workflows and event-driven architectures to seamlessly support day-to-day production and scaling needs. Provide technical leadership through architecture reviews, design discussions, and knowledge sharing across engineering teams Shape the technical roadmap by proactively identifying architectural bottlenecks and proposing strategic improvements. What you’ll bring: The Ingredients Extensive backend engineering expertise, ideally within JVM-based ecosystems (Kotlin or Java), coupled with a strong grasp of distributed systems and microservices architecture. A proven track record of designing and operating highly scalable, event-driven systems using messaging technologies such as Kafka, RabbitMQ, or SQS. Strong ability to work fluidly across team boundaries, translating complex business or operational requirements into actionable technical roadmaps. Solid understanding of modern cloud infrastructure (AWS, Kubernetes) and observability practices, with the capacity to establish and advocate for tribe-wide standards. A collaborative, low-ego approach to problem-solving, possessing strong technical judgment and a passion for mentoring fellow engineers. 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 Mennica Legacy Tower (Prosta 20). 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. #engineering

🏢 Summary: Senior Data Scientist role focused on building, deploying, and optimizing machine learning models for fraud detection and risk assessment in a global e-commerce subscription platform. The position involves developing real-time and batch ML solutions to prevent payment and voucher fraud while driving measurable business impact. You will work end-to-end from data exploration to production in a cross-functional, data-driven environment. 🗂️ Requirements: Bachelor’s, Master’s or PhD in Statistics, Mathematics, Computer Science, Data Science or related field, Minimum 3 years of experience as Data Scientist, Strong experience with classification and regression models, Proficiency in Python for data science, Experience with Spark or PySpark, Experience with AWS services, Experience with workflow orchestration tools, Knowledge of handling imbalanced datasets and model evaluation in production, Experience with real-time model inference, Experience with A/B testing, Familiarity with Git, Docker and CI/CD pipelines 📃 Skills: Python, NumPy, Pandas, Scikit-learn, XGBoost, LightGBM, Spark, PySpark, Databricks, AWS, SageMaker, Airflow, Prefect, Tecton, Git, Docker, CI/CD 🏢 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 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.

🏢 Summary: Backend Engineer role in the Active Journey Alliance focused on building and operating scalable microservices that support customer retention and subscription management for a global food platform. The position involves end-to-end ownership of architecture, development, deployment, and operations in a modern, event-driven environment. You will work with cross-functional teams to deliver high-impact, data-driven backend systems at global scale. 🗂️ Requirements: Strong experience in backend development, Experience with microservices and distributed systems, Ability to build event-driven architectures, Experience with messaging systems such as Kafka, RabbitMQ, or AWS SQS/SNS, Proficiency in Go or PHP or JVM languages, Experience with Docker and Kubernetes, Experience implementing CI/CD pipelines, Knowledge of unit and end-to-end testing, Strong understanding of relational databases, Hands-on experience with AI coding agents 📃 Skills: Golang, PHP, Java, Kafka, RabbitMQ, SQS, SNS, Docker, Kubernetes, CI/CD, SQL, MongoDB, Elasticsearch, GraphQL, Microservices, DistributedSystems 🏢 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 position is part of the Active Journey Alliance, which has the mission to maximize retention of active customers. Active Journey Alliance helps customers to create habits with our products, manage their subscription, order the products they love and provide help in the face of errors. Backend Engineers assume development and operational responsibility for the HelloFresh platform that serves millions globally to deliver the best experience for our customers and internal users. 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 of the architecture, design, development, deployment and operations of the microservices you will develop, using DevOps practices, pair programming and other cutting edge methodologies Be active, solution-oriented member of autonomous, cross-functional agile teams collaborating with Product Owners, Front-end Engineers, Designers, and Business Intelligence teams Having an in-depth understanding of HelloFresh’s core product and architecture, and act as ambassador for software solutions offering support and mentorship to colleagues Work with state-of-the-art technologies like Golang, Kafka, Docker, Kubernetes and more 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. Strong background in backend development, with a focus on microservices and distributed systems Proven ability to build event-driven architectures using messaging technologies such as RabbitMQ, Kafka, or AWS SQS/SNS Proficiency in Go and/or PHP is preferred; experience with JVM languages and a willingness to learn Golang is also welcome Practical knowledge of Docker, container orchestration tools like Kubernetes, and CI/CD implementation Solid foundation in testing practices, including both unit and end-to-end testing Deep understanding of relational databases Familiarity with MongoDB, Elasticsearch, and/or GraphQL is a plus 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. #Engineering