Senior Full-Stack Engineer (m/f/d) (Java or PHP + React/Next.js/TypeScript)

• Turn ideas into running code:
  • Work in cross-functional squads with Product, UX and Data colleagues to design, build and evolve applications end-to-end.
  • Back end: choose your strength (Java/Spring Boot or PHP/Laravel) and create reliable domain logic and APIs.
  • Front end: craft engaging UIs in React/Next.js with TypeScript, component libraries and modern CSS.
• Build the glue in-between: Design clear contracts between front end and back end (REST or GraphQL), handle auth flows and optimise performance all the way to first paint.
• Shape a modern platform: We’re moving toward a headless, microservice-oriented landscape. As a senior, you’ll help create clean APIs, refine coding standards and champion the right refactorings.
• Automate where it matters: Build and refine GitLab pipelines, Docker images and workflow engines that remove manual steps - both in development and inside the products themselves.
• Grow - if you want to: Mentor junior engineers, run architecture sessions or even lead a small squad when it fits your personal goals.
• Stay curious: Experiment with new language features, edge-side rendering, server components, cloud services - any idea that helps us close product loops faster.

• 5 + years of professional software experience, including:
• Solid back-end chops in either Java/Spring Boot or PHP/Laravel.
• Modern front-end skills with React, Next.js and TypeScript.
• Clear understanding of RESTful API design, relational databases (MySQL/PostgreSQL) and containerisation with Docker.
• Familiarity with GitLab CI/CD - our DevOps team handles the heavy lifting, but you’re comfortable tweaking pipelines.
• A feel for clean architectures, test automation and the judgement to choose the right pattern at the right time.
• Fluent English (German is a bonus), a collaborative mindset and genuine curiosity about how products succeed in the real world.
• A valid EU work permit; candidates already based in Germany (or nearby EU countries) are strongly preferred.

Ready to make a difference?

• Variety: shape greenfield services from scratch and breathe new life into proven applications - both matter equally.
• Work where you thrive: 100 % remote within the EU (ideally Germany) or on-site in our modern offices - your call.
• Competitive salary plus extensive benefits: company pension scheme, Germany ticket, bike leasing, family & life counselling, comprehensive health programmes and more.
• Opportunity to shape: Plenty of freedom to influence how our new product organisation takes shape.
• Purpose with measurable impact: every feature you ship advances the circular economy and our #MoveTheDate mission.