(Senior) Full Stack Developer - Web (f/m/d)

Join us as a (Senior) Full Stack Developer - Web (f/m/d) in Berlin. We are looking for a Senior Full Stack Developer to help shape and scale think-cell’s web platform and enable multiple teams to efficiently manage and publish content. This role requires solving complex technical problems and building systems that are robust and maintainable.

• Design, build, and evolve our web platform features across front-end and CMS back-end.
• Solve complex technical problems in a pragmatic way, balancing speed of delivery with long-term maintainability.
• Drive architectural improvements to make our web ecosystem more robust, scalable, and easier to work with.
• Build and improve our back-end functionality in PHP and Laravel.
• Extend and optimize our CMS and publishing workflows to support efficient content operations.
• Improve performance, Core Web Vitals, accessibility, and technical SEO foundations across the platform.
• Collaborate with design, marketing, product, and engineering teams for well-structured technical solutions.
• Interface with back-end systems written in C++, ensuring reliable data exchange.
• Identify opportunities to improve developer experience and raise the engineering standard of the platform.

• Strong experience building and shipping production-grade web platforms, applications, or systems.
• Proven ability to solve non-trivial technical problems in complex web codebases.
• Strong full stack engineering skills with solid backend experience in PHP, Laravel, or similar technologies.
• Strong frontend fundamentals, including HTML, CSS, JavaScript.
• Good judgment in making architectural and technical trade-offs.
• Curiosity and confidence to work with unfamiliar technologies.
• Strong sense of ownership and responsibility for code quality.