Senior Fullstack Developer

Johan Ponin is a Senior Fullstack Developer with 12+ years of experience, currently employed and seeking long-term freelance collaborations. He offers competitive rates ($70-90/hr) and prioritizes team culture and interesting problems. He brings expertise in shipping production code, dev tooling (e.g., custom Babel AST analyzers), and proactive problem-solving. Ideal projects include teams with strong engineering culture, greenfield development, systematic refactoring, and environments focused on formal/industrial model-driven development or FP/Logic Programming (Clojure, Haskell, Prolog). He is available for part-time work (10-20 hours per week) and is open to full remote opportunities.