<h3>About the Role</h3><p style="min-height:1.5em">We're a product-focused AI platform and product studio based in Munich, helping hundreds of SMEs integrate AI into their core workflows. Our platform already serves a large and fast-growing user base, and we're scaling toward the next order of magnitude. We're looking for a <strong>Senior Full Stack Engineer</strong> to join our engineering team and own some of the hardest architectural challenges we face — from multi-terabyte data synchronisation to secure, high-throughput sandbox infrastructure.</p><p style="min-height:1.5em">This is a <strong>hybrid role</strong> based in <strong>Munich, Germany</strong>. No visa sponsorship is available — candidates must be authorised to work in Germany without employer sponsorship.</p><h3>What You'll Do</h3><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Own the most complex architectural problems across the platform, including multi-terabyte data synchronisation and secure sandbox infrastructure.</p></li><li><p style="min-height:1.5em">Architect, build, and ship high-quality full-stack features using <strong>React</strong> and <strong>TypeScript</strong>, with a strong focus on long-term scalability and UX.</p></li><li><p style="min-height:1.5em">Design and implement systems to synchronise and index terabytes of client data while enforcing fine-grained permissions.</p></li><li><p style="min-height:1.5em">Build infrastructure to process millions of LLM calls per month with high reliability and security.</p></li><li><p style="min-height:1.5em">Implement scalable, secure code sandbox solutions capable of spawning thousands of sandboxes per day.</p></li><li><p style="min-height:1.5em">Create base infrastructure and tooling for fast custom integrations, enabling new systems to be connected in hours.</p></li><li><p style="min-height:1.5em">Collaborate on technical roadmaps and align on architectural decisions with the broader engineering team.</p></li><li><p style="min-height:1.5em">Debug production incidents, identify root causes, and implement durable fixes to keep the platform stable.</p></li><li><p style="min-height:1.5em">Mentor junior engineers and raise the bar across the codebase through constructive, thorough code reviews.</p></li><li><p style="min-height:1.5em">Continuously improve development processes, code quality standards, and overall team performance.</p></li></ul><h3>What We're Looking For</h3><p style="min-height:1.5em"><strong>Required</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em"><strong>5+ years</strong> of professional experience with <strong>React</strong> and <strong>TypeScript</strong> (dealbreaker).</p></li><li><p style="min-height:1.5em">7+ years of overall professional software engineering experience.</p></li><li><p style="min-height:1.5em">2+ years of backend development experience with <strong>Node.js/Express</strong> or equivalent.</p></li><li><p style="min-height:1.5em">Proficiency with conta