May 27, 2026
Senior Frontend Engineer, Loyalty & Virality Tribe, Consumer Alliance (m/f/d)
Senior • Hybrid
22,000 - 32,000 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
How is a customer transformed into an engaged user? Within the Loyalty & Virality Tribe, the relationship is maintained through technical excellence. The scope involves architecting the HelloFresh Rewards and Loyalty ecosystem, where the goal is to create a "sticky" experience that keeps members engaged.
This role involves collaborating with a high-cadence team focused on one primary goal: Loyalty Member ROI. The project focuses on building reasons for millions of users to engage with reward points, explore new products, and feel valued at every step of the journey—from the shopping funnel and beyond.
What You’ll Do: The Recipe
Drive Loyalty ROI: Design and ship features across the Rewards domain that encourage members to earn, track, and—most importantly—spend their points.
Full-Stack Flexibility: While the focus is React, the service includes contributing to React Native mobile experiences and engaging with Backend topics to ensure end-to-end delivery of features.
High-Velocity Iteration: Maintain an aggressive development cadence, turning hypotheses into live experiments in day(s), not weeks.
AI-Augmented Engineering: Develop usage patterns and tailor processes to enable optimal customer impact. This involves finding ways to utilize AI to automate tasks and accelerate code generation.
Shape the Backlog: Drive the product direction. High-level contribution to the hypothesis backlog is expected, helping decide what is built based on data coming from customer behavior.
What You’ll Bring: The Ingredients
Web Mastery + Mobile Curious: 5+ years of experience with React and TypeScript. You have a solid foundation in web, and either past professional experience with React Native or a hunger to apply your skills here
"Full-Stack Ready" Mindset: You aren't afraid of the "black box" of the backend. You’re willing to jump into APIs and services to unblock yourself and the team.
The Speed Factor: You thrive in environments with aggressive prioritization. You know when to build for the long term and when to build a "quick and dirty" experiment to prove a point.
GenAI Savvy: You are already using AI tools to supercharge your workflow and are excited about pushing the boundaries of how AI can assist in product development and improving the customer experience
Cross-Funnel Thinking: You understand that "Loyalty" doesn't stop at the Rewards page—it lives throughout the user experience, in the checkout, the account settings, and the homepage.
Above all, we are looking for people 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.
We are HelloFresh
At HelloFresh we embrace and welcome diversity and we currently employ over 15,000 individuals globally who contribute to this. We employ individuals based on their ability to perform a job rather than on the basis of their: race, national origin, color, caste, social origin or position, gender, gender expression, sexual orientation, religion, age, disability, political opinion, marital status or any other characteristic. We encourage everyone to apply and will give everyone equal consideration. We are an equal opportunity employer – everyone is welcome at our table.
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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 Active Journey Alliance , whose mission is to maximize the retention of active customers by helping them build habits, manage subscriptions, and navigate their ordering experience seamlessly. As an external expert, you will provide specialized services in developing and maintaining high-availability backend systems that serve millions of global users, ensuring a robust technical foundation for customer-facing features and error-resolution workflows. What you’ll do: The Recipe Deliver end-to-end services including the architecture, design, development, and deployment of microservices within a DevOps-oriented framework. Provide technical contributions within autonomous, cross-functional agile units, collaborating with primary stakeholders such as Product Owners, Designers, and BI specialists. Ensure operational excellence for delivered services through modern methodologies, including pair programming and automated testing. Execute technical solutions using a state-of-the-art stack including Golang, Kafka, Docker, and Kubernetes. Act as a subject matter expert on software solutions, providing technical guidance and knowledge sharing to other contributors. What you’ll bring: The Ingredients Extensive experience in backend service delivery, specifically focusing on microservices and distributed systems. Proven proficiency in building event-driven architectures utilizing technologies like RabbitMQ, Kafka, or AWS SQS/SNS. High proficiency in Golang is preferred; experience with JVM languages and a readiness to provide services in a Go-centric environment is welcome. Practical expertise with Docker, container orchestration via Kubernetes, and the implementation of CI/CD pipelines. A rigorous approach to testing practices, encompassing both unit and end-to-end validation. Deep technical understanding of relational databases; additional experience with MongoDB, GraphQL, or Elasticsearch is highly regarded. 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
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, Consumer
Senior
Hybrid
Warsaw, Poland
170,300 - 225,400 PLN
🏢 Summary: Backend Engineer role focused on building, deploying, and operating scalable microservices within a global, subscription-based platform serving millions of users. The position involves working in cross-functional agile teams to develop event-driven, data-driven systems that enhance customer retention and subscription management. Engineers take end-to-end ownership using modern DevOps practices and cloud-native technologies. 🗂️ Requirements: Strong experience in backend development, Experience with microservices and distributed systems, Ability to build event-driven architectures using messaging systems, 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 📃 Skills: Golang, PHP, Java, Kafka, RabbitMQ, SQS, SNS, Docker, Kubernetes, CI/CD, MongoDB, Elasticsearch, GraphQL, SQL 🏢 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 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
Technology
HelloFresh
Senior Backend Engineer, Active Journey Alliance
Senior
Hybrid
Warsaw, Poland
23,000 - 34,700 PLN
🏢 Summary: Backend Engineer role in the Active Journey Alliance, focused on building and operating scalable microservices that power customer retention and subscription management for a global food platform. The position involves end-to-end ownership of architecture, development, deployment, and operations within cross-functional agile teams. You will work with modern technologies to deliver high-performance, event-driven systems used by millions of customers worldwide. 🗂️ Requirements: Strong backend development experience, Experience with microservices architecture, Experience with distributed systems, Experience building event-driven architectures, Experience with messaging systems (RabbitMQ, Kafka, or AWS SQS/SNS), Proficiency in Go or PHP or JVM languages, Experience with Docker, Experience with Kubernetes, Experience with CI/CD pipelines, Experience with unit and end-to-end testing, Strong knowledge of relational databases 📃 Skills: Golang, PHP, Java, Kafka, RabbitMQ, SQS, SNS, Docker, Kubernetes, CI/CD, SQL, MongoDB, Elasticsearch, GraphQL, 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 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.
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.