Senior Backend Engineer - Plans Squad (f/m/x)

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 join the Consumer Mega Alliance, Consumer Core Tribe as part of the Plans squad. As a Senior Backend Engineer, the role involves playing a pivotal part in the Consumer Core. The squad is responsible for the mission-critical Customer Plans Domain, which is currently undergoing a strategic evolution. The focus is not just on maintenance, but on re-architecting how millions of customers interact with the product. This is an opportunity to move a global giant toward its future state architecture, removing technical debt and building the foundation for the next decade of growth. This role does not include people management responsibilities. 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 you’ll do: The Recipe Design, develop, and maintain scalable and reliable back-end services, focusing on distributed architecture and microservices. Lead the migration of critical services from a monolithic architecture to a microservices framework, ensuring seamless integration and high availability. Conduct code reviews and provide technical guidance to team members, promoting best practices in software development, testing, and deployment. Analyze system performance , identify bottlenecks, and implement optimizations to ensure optimal efficiency and reliability of services. Stay up-to-date with industry trends and emerging technologies, applying relevant advancements to improve the technology stack and processes. Contribute to architectural discussions and decisions, providing technical guidance and insights to shape the overall direction of solution design. What you’ll bring: The Ingredients Strong backend engineering experience, including modernizing monolithic legacy systems into microservices, and event-driven architectures. Hands-on experience with event-driven systems (e.g., Kafka) and real-time lifecycle event processing. Proven ability to design orchestration layers for complex end-to-end customer flows. Proficiency in Golang (JVM/Kotlin and PHP are a plus), plus experience with PostgreSQL, Docker, Kubernetes, and CI/CD pipelines. Solid understanding of TDD/BDD/DDD and distributed systems; experience with e-commerce, subscriptions, and GraphQL is a plus. 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