Senior Full-stack AI Engineer

15 years as a full-stack AI engineer, including onsite engineering and team leadership for US enterprises ADP and Time Warner Cable. Specializes in shipping agentic AI products in 2 to 3 weeks. Builds multi-agent systems with LangGraph, CrewAI, OpenAI Agents SDK, and AutoGen, focusing on tool use, handoffs, planning loops, and robust guardrails. Develops production RAG pipelines with pgvector, reranking and evaluation. Creates AI-integrated full-stack apps on Next.js, Supabase, and Stripe, from MVP to scale. Best fit for founders building agentic AI products needing senior engineering judgment, architecture ownership, and team mentorship. Open to fixed-bid projects, ongoing contract work, or fractional technical lead engagements.