Ethan Ellerstein - an engineer who ships AI products, builds the full-stack around them, and secures what he makes.
I’m a builder who works across AI, full-stack engineering, and security - and I care most about the seams where they meet.
Azure OpenAI, RAG, tool-calling, and copilots that actually ship.
React front-ends on C#/.NET services - built, shipped, maintained.
A pen-tester’s instincts baked into everything I build.
I care equally about whether a button feels right to press and whether a system holds up under attack. Most days I’m building AI products on the Microsoft stack, engineering the full-stack around them, and pressure-testing the result. Range isn’t a lack of focus - it’s the focus.
Have a project, a role, or just a good problem? Drop me a line - I read everything.
eellerstein@gmail.com →