Senior Backend Engineer

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