Senior Full Stack Engineer

About the Role

This is a senior engineering role on a product-focused team building a secure, scalable AI platform for the SME sector. You will own complex architectural challenges end-to-end, helping grow an established platform to its next stage of scale. Your work will directly shape the systems and standards that the broader engineering team builds on.

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 user experience.
- 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 for fast custom integrations so new systems can be connected quickly.
- 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 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

- 7 or more years of professional software engineering experience with a strong full-stack background, including clearly demonstrated frontend work.
- Production experience with React, TypeScript, PostgreSQL, Docker, and CI/CD pipelines.
- Hands-on experience with tRPC, Kubernetes, and modern frontend tooling.
- Proven track record designing, scaling, and maintaining complex software architectures for high-growth products.
- Experience operating at scale: large dataset synchronization, high-volume API or LLM processing, and secure multi-tenant infrastructure.
- Demonstrated end-to-end ownership of substantial initiatives from conception through delivery and operation.
- A genuine interest in mentoring engineers and actively shaping engineering standards.
- Strong product ownership mindset with attention to user experience and long-term product success.
- Comfortable working at pace in a high-growth environment.

Compensation & Benefits

Salary range: 70,000 to 90,000 EUR annually . Visa sponsorship is not available for this role.

Location

Hybrid role based in Munich, Bavaria, Germany . Candidates must be located in Munich.