Senior Backend Engineer - Data

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.

• Extensive experience with Kotlin, other JVM languages, or Golang, backed by a strong command of data structures and algorithms.
• Solid experience with frontend technologies including HTML, CSS, JavaScript, and component-based architectures using React/Redux or NextJS.
• Proven track record of binding complex frontend and backend services together into seamless user experiences.
• Practical experience with Docker, Kubernetes, and deploying code within fast-paced, automated CI/CD environments.
• Deep understanding of both relational and document databases, alongside event-driven architectures using Kafka or RabbitMQ.
• Ability to provide technical mentorship and share practical trends with cross-functional partners.

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.