Alexander Haller
I’m a startup-focused tech lead and founding-stage engineer who turns chaotic early products into scalable, well-structured systems.
About
I’m a startup-focused tech lead and founding-stage engineer who turns chaotic early products into scalable, well-structured systems. I work end-to-end across Node.js/TypeScript backends and modern TypeScript frontends, with a strong bias toward pragmatic architecture and end-to-end type safety.
I enjoy owning technical direction across the full stack—backend, frontend, and infrastructure—and setting up engineering processes that help teams move faster without creating fragility. From migrations and performance-critical database work to leading teams through growth, I focus on bridging business goals with sound technical decisions.
- 8 years' experience
- Joined September 2026
Languages
- GermanFluent
- EnglishFluent
Industry experience
- Software & Internet
- Financial Services
- Media & Entertainment
- Professional Services
Work experience· 4 roles
Joined in a messy early-stage state and professionalized the codebase. Led and executed a 7-month migration from Firebase to PostgreSQL, improving reliability and data modeling. Established engineering processes including issue management, communication, and workflows. Led and mentored developers, shaping team structure and technical direction across backend, frontend, and infrastructure. Helped scale revenue from €100k to €800k while maintaining production quality and scalable system design.
First and main contributor to the Baserow Application Builder. Built product-heavy systems across backend and frontend, focusing on type-safe and reliable implementation. Worked on performance-critical, database-driven features and contributed to overall system scalability while supporting a growing engineering organization.
Worked on full-stack development for financial platforms used by banks. Built reliable enterprise-grade frontends and backend integrations, focusing on stability, maintainability, and production-readiness in a complex domain.
Education
Hire Alexander Haller today
Post a job and invite Alexander, or contact them directly. No hidden commission.