My specialty is taking over and revitalizing legacy applications — VB6, WinForms and classic MVC migrated to modern ASP.NET Core / .NET 8 — together with REST API design and SQL performance tuning that actually holds up under production load.
Over the past years I've led AI integration in production SaaS — multi-provider AI pipelines (OpenAI, Anthropic, Google) and RAG — and contributed to OpenAI and Azure AI integrations on client projects. In healthcare, I build fine-tuning datasets and anti-hallucination guardrails that keep a clinical AI assistant from inventing diagnoses.
I own the full backend lifecycle end to end, thrive in async, documentation-driven teams, and I've worked remote with US clients for years — BairesDev, Applaudo Studios, Product Perfect — alongside a decade modernizing systems for the Dominican tax authority (DGII).
And when I'm not on contract, I build and operate my own products. Scroll down — several of them are live, in production, with real users.
🏗️Legacy → ModernVB6 → Web Forms → ASP.NET MVC, SOAP → REST, Oracle 9i → 19c. Done repeatedly, at government scale.
🤖AI that shipsMulti-provider LLM pipelines (Gemini, OpenAI, Claude) running in production — plus fine-tuning datasets and safety guardrails for a clinical assistant in evaluation.
📦Product mindsetFounder of multiple SaaS products: billing, tenants, deployments, support. I know what "done" means.
🗄️Database whispererSQL Server, Oracle PL/SQL, query & stored-procedure optimization on big, messy data.
