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

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About the role

At HelloFresh, the goal is to change the way people eat forever by delivering high-quality food across 18 countries and 3 continents. As a global food solutions group and the world's leading meal kit provider, the portfolio includes HelloFresh, Green Chef, EveryPlate, Chefs Plate, Factor_, and Youfoodz. Engaging with HelloFresh in Warsaw means collaborating with HelloTech—a global technology division of over 1,000 people powering an end-to-end food ecosystem. From digital personalization and forecasting to supply chain optimization and food waste reduction, technology drives every step of this direct-to-consumer model. About the Role: What's in the Box HelloTech operates in autonomous, cross-functional alliances, each holding accountability for a specific product domain end to end. In this role you will join an assigned squad, with the flexibility to transition between teams and projects as technical objectives and business priorities evolve. Several technical domains are actively engaging providers. Projects will be aligned based on individual strengths and expertise during the process. Key technical domains include: • Deliveries & Orders / Plans: Core backend systems turning a subscription into correct physical deliveries for millions of customers. • Active Journey: Maintaining customer lifecycle stability: features covering habits, subscription management, ordering, and graceful error recovery at scale. • Menu Personalization & Forecasting: Utilizing data and applied science workflows to tailor user interfaces and predict regional consumer demand. • Operations & Supply Chain (SCM): Procurement, inventory, labeling, and production systems solving physical-world challenges with software. 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 experimentatio

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