Senior Full Stack Engineer
About the Role
Join a product-focused engineering team at a bootstrapped AI platform company in Munich, building secure and scalable infrastructure that brings AI tools to the heart of the SME sector. As a Senior Full Stack Engineer, you will own complex architectural challenges and help scale a platform already used by thousands of teams toward its next major growth milestone. Your work will directly shape the reliability, security, and user experience of a product with real business impact.
What You'll Do
Own the most complex architectural problems across the platform, including multi-terabyte data synchronization and secure sandbox infrastructure.
Architect, build, and ship high-quality full-stack features using React and TypeScript with a focus on long-term scalability and UX.
Design and implement systems to synchronize and index large volumes of client data while enforcing permissions.
Build infrastructure to process millions of LLM calls per month with high reliability and security.
Implement scalable, secure code sandbox solutions capable of spawning thousands of sandboxes per day.
Create base infrastructure and tooling to enable fast custom integrations with new systems.
Collaborate on technical roadmaps and align on architectural decisions with the development team.
Debug production incidents, identify root causes, and implement durable fixes to keep the platform stable.
Mentor junior colleagues and raise the bar through constructive, thorough code reviews.
Continuously improve development processes, code quality standards, and overall team performance.
What We're Looking For
7+ years of professional software engineering experience with a clear track record of full-stack work, including demonstrated frontend contributions.
Production experience with React, TypeScript, PostgreSQL, Docker, and CI/CD pipelines.
Hands-on experience with tRPC, Kubernetes, and modern frontend tooling.
Proven ability to design, scale, and maintain complex software architectures for high-growth products.
Experience operating large-scale systems: large dataset synchronization, high-volume API or LLM processing, or secure multi-tenant infrastructure.
End-to-end ownership of substantial initiatives from conception through delivery and operation.
Genuine motivation to mentor engineers, conduct thorough code reviews, and shape engineering standards.
Strong product ownership mindset with attention to UX and long-term product success.
Comfortable learning quickly and thriving in a fast-paced, high-growth environment.
Currently based in Munich.
Compensation & Benefits
Salary range: 70,000 EUR to 90,000 EUR annually. Visa sponsorship is not available for this role.
Location
Hybrid, based in Munich, Bavaria, Germany.