The role involves owning the most complex architectural challenges within the platform, from multi-terabyte data synchronization and permissions to designing a secure, scalable code sandbox infrastructure. It focuses on architecting, building, and shipping high-quality full-stack features with React and TypeScript (tRPC, PostgreSQL) and a core stack that includes Docker and Kubernetes, with a strong emphasis on long-term scalability and a remarkable user experience, while collaborating with the development team to define technical roadmaps and align on architectural decisions. The engineer will debug production issues, drive code quality through thorough reviews, and mentor junior colleagues, helping shape engineering culture and processes across the team. Working to scale the AI platform to 1M users and support millions of secure LLM calls per month, the role also involves building the base infrastructure for the integrations team to rapidly connect new systems. The position is based in Unterhaching / München, 40 hours per week, with a salary range of EUR 70k-90k, and uses a stack including React, TypeScript, tRPC, PostgreSQL, Docker, Kubernetes, and AI services such as OpenAI, Gemini, Claude, Mistral, Perplexity, Flux, and Gladia.