Senior Backend Product Engineer - Go and/or JVM (all genders)

Across all domains, the technical profile consists of highly available, event-driven distributed systems serving global architectures. This role does not include people management responsibilities.

WHAT YOU’LL DO: THE RECIPE

At HelloFresh we are moving away from a model where software developers just execute tickets toward one where product engineers are trusted to own customer problems. A Product Engineer takes a problem, forms a point of view, validates it with customers and data, and ships it using AI as a force multiplier.

• Maintain accountability for the architecture, design, development, deployment, and operation of microservices under a full DevOps model.
• Take the technical lead on backend-heavy product problems, designing, building and operating the services and systems needed to deliver them reliably at scale.
• Build event-driven systems utilizing messaging technologies such as Kafka, RabbitMQ, or AWS SQS/SNS, and expose data via clean REST and gRPC interfaces.
• Work extensively with Docker, container orchestration via Kubernetes, and CI/CD automated deployment pipelines.
• Maintain a strong commitment to testing, executing robust test suites stretching from unit tests through to full end-to-end coverage.
• Collaborate closely within cross-functional agile teams including product leads, frontend engineers, designers, and data teams.
• Provide technical guidance and support to surrounding team members, actively participating in code and architecture reviews.
• Leverage modern AI tools and workflows (e.g., Claude, Cursor) as a standardized component of engineering delivery to increase productivity.
• Work beyond your specialization when the problem demands it. Your specialization is your anchor, not your boundary.
• Operate what you build. You instrument, monitor, and improve your systems in production. Shipping is the beginning of the learning cycle, not the end.

WHAT YOU’LL BRING: THE INGREDIENTS

• Hands-on experience working with AI tooling (e.g., Claude Code, Cursor, Copilot) beyond casual experimentation. You use AI agents every day. You have a practical sense of how the context you provide to AI tools shapes output quality, and how to set boundaries on AI-generated work.
• Strong fluency in Go or a JVM language (Java/Kotlin) and hands on experience building distributed systems in production: event-driven and asynchronous flows, clear service contracts, and designing for partial failure. High proficiency in one stack is required, with a willingness to expand technical knowledge into Go. You operate what you build, including its observability and data layer.
• Solid experience building, deploying, and operating critical backend services in a production environment.
• Technical comfort navigating distributed systems, messaging queues, containerization, and modern deployment infrastructure.
• Strong software engineering instincts, including practical application of design methodologies like TDD, BDD, or DDD, and the ability to make sensible technical trade-offs.
• Excellent communication capabilities to operate effectively inside an international, multi-disciplinary technical environment.
• You take full ownership. You have a bias to ship. You finish the last twenty percent.
• You have product sense and are opinionated about what should be built and why, and you can back that opinion with data and user evidence.

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 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).

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