About the Role
We are a bootstrapped AI platform and product studio based in Munich, Germany, serving a fast-growing base of SME customers. Our platform enables teams to connect data sources, build custom AI workflows, and deploy tailored AI assistants — without needing to be technical experts. We're now looking for a Senior Full Stack Engineer to help us scale our platform from its current user base toward 1 million users.
You'll join a small, product-focused engineering team and take real ownership of complex architectural challenges — from multi-terabyte data synchronization to secure sandbox infrastructure and high-volume LLM processing pipelines.
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 terabytes of client data while enforcing fine-grained 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 for fast custom integrations, enabling new systems to be connected within hours.
- Collaborate on technical roadmaps and align on architectural decisions with the broader engineering team.
- Debug production incidents, identify root causes, and implement durable fixes to keep the platform stable.
- Mentor junior engineers 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
Must-haves:
- 7+ years of professional software engineering experience.
- Strong hands-on experience with React, TypeScript, and PostgreSQL (including relational data modeling and query performance optimization).
- Experience with tRPC or an equivalent type-safe API communication framework.
- Proven experience designing and implementing secure, multi-tenant sandbox environments.
- Experience building systems to process millions of LLM/API calls per month with high reliability and security.
- Familiarity with the broader stack: Docker, Kubernetes, and modern CI/CD tooling.
- Willingness to work on-site in Munich, Germany (hybrid arrangement).
Nice-to-haves:
- Experience scaling complex software architectures for high-growth B2B products.
- A strong product ownership mindset with genuine attention to end-user experience.
- A passion for mentoring engineers and shaping engineering standards and processes.
- Comfort with fast-paced, high-growth environments and rapid context switching.
Compensation & Benefits
- Salary: €70,000 – €90,000 per year, depending on experience.
- Work on a product with real user impact in the growing AI/SME space.
- Small, collaborative team with significant scope for architectural influence.
- Hybrid work arrangement based in Munich.
Please note: Visa sponsorship is not available for this role. Candidates must already have the right to work in Germany.
Location
This is a hybrid role based in Munich, Germany. Regular on-site presence in Munich is required.