Freelance software engineer offering end-to-end product development on fixed scope and fixed price. Specializes in Ruby on Rails, Python (FastAPI), TypeScript/Node, Go, PostgreSQL, AWS, and Hotwire. Senior engineer with 15 years of experience delivering complete products as a single accountable engineer, AI-accelerated. Notable projects include a clinical alerting platform used by NHS trusts, an edge-to-cloud analytics platform for Johnson & Johnson Medical, and a cloud platform behind a fielded detection-hardware fleet. Available for contract engagements (Rails).