~/stembera $ whoami
Freelance Senior Full-Stack Developer helping teams stabilize, rethink, and evolve complex systems. Architecture, migrations, mentoring.
About
I build and shape applications end-to-end — from user interfaces and interaction flows to backend services, data models, and overall system architecture.
A significant part of my work involves stepping into complex or legacy codebases and bringing them back under control — turning systems that have grown organically into ones that are understandable, maintainable, and reliable.
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.
I often work alongside developers as well, mentoring less experienced team members and helping raise the overall level of engineering within a project.
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.
Supporting teams and junior developers through code reviews, technical guidance, and calm, practical engineering leadership.
Clients
Selected clients across aerospace, finance, telecom, manufacturing, retail, and software.
Contact
If you need help stabilizing a complex system, planning a migration, shaping a clearer architecture, or supporting a team through technical change, feel free to get in touch.