author Fran H. EU resident
Fran H.
Senior full-stack engineer. 15 years shipping production systems, 12+ of them freelancing. Works AI-native: Claude Code and custom agents for speed, paired with CI, Playwright E2E gates, and code review so reliability doesn't suffer.
Recent work
- A HIPAA-compliant healthcare platform with a LangChain RAG assistant b24e24f
- A multi-tenant SaaS product with audit logging and role-based access
- Custom MCP servers bb01bf0
- Claude Code tutoring for developers at all levels
Past production work
- 1,300+ daily optimization runs for hydropower bidding under a 99.5% SLA 0728da3
- Oil & gas production planning across 20+ wells 2227a30
- A multi-country events platform serving 1,000+ companies and 2,500+ attendees f0e1807
- Carbon-capture economic analysis 1b0f327
- An air-traffic-control training system 4aedf19
- The automation of a 1 m astronomical telescope ce8932b
The portfolio has the full tour.
Stack
Hours & language
EU resident, 6–8 h daily overlap with US office hours. English: fluent (C1).