~/stembera $ whoami
Freelance Senior Full-Stack Developer helping teams regain control of legacy, messy, or stalled software projects — from architecture and migrations to stabilization and hands-on delivery.
Typical stack: TypeScript, JavaScript, React, Node.js, Electron, SQL, legacy frontend/backend systems.
About
I help teams take control of software that became difficult to maintain, hard to understand, or risky to change — whether that means stepping into a legacy codebase, stabilizing an unreliable system, or helping a project regain direction.
I build and shape applications end-to-end — from user interfaces and interaction flows to backend services, data models, and overall system architecture.
I’m typically brought in when a system needs to be rethought, stabilized, or gradually transformed — whether that means migrating legacy code, defining a clearer architecture, or helping teams find direction and confidence in their codebase.
My background includes long-running enterprise work for organizations such as ESA, Airbus, BMW, Deutsche Bank, and others where reliability, continuity, and technical clarity matter over time.
I often work alongside developers as well, helping teams raise the overall level of engineering within a project through practical guidance, code reviews, and day-to-day technical clarity.
Focus
Defining clearer system boundaries, reducing accidental complexity, and helping projects move toward structures that make sense long term.
Gradual modernization of legacy applications without losing control of the system, the data, or the team around it.
Taking systems that have grown messy over time and turning them into something more predictable, maintainable, and easier to reason about.
Stepping into projects after previous developers, rebuilding understanding of the system, and helping teams regain confidence in how to move forward.
Clients
Selected clients across aerospace, finance, telecom, manufacturing, retail, and software.
Contact
If your project got stuck, became hard to maintain, or lost direction over time, I can help you get it back under control. Whether you need someone to step in, stabilize the system, or help move a difficult project forward — feel free to get in touch.
Currently available for new project work.