Billy Lavoie

Senior full-stack engineer with 10+ years shipping web products. My main stack is TypeScript, React, Next.js, and Node.js, with Python for integrations, data jobs, and AI. I use PostgreSQL for application data and AWS for production.

Recent work includes Clearby, a payments and clearing platform built with TypeScript, Node.js, and AWS; a supplier marketplace with React, TypeScript, Python, and Rails on AWS; and OrbitAgent, a multi-agent orchestration and RAG system in Python and TypeScript.

I take a product from the data model and API through the interface. For AI work, I use retrieval and agent workflows where they help, and I keep payments, inventory, and permissions in normal application code.

I am looking for senior full-stack roles on product teams, including products that are adding LLM features.