Hi, I'm Zachary.

I'm an AI Engineer on the Applied AI team at WorkOS, where I ship retrieval, agent harnesses, and the evals that keep them honest. Before that: staff developer advocacy at Pinecone (where I designed the RAG reference architectures thousands of teams shipped against), senior engineering at Cloudflare, and tech-lead work at Gruntwork on the Terraform modules behind hundreds of companies' AWS infrastructure. 14 years in production as a full-stack engineer — databases, backends, middleware, and frontends — with a deep love for infrastructure-as-code and cloud systems. I'll happily write the migration, the API, the React, and the Terraform module that deploys it.

I offer specialized AI engineering services focused on production-ready Next.js apps with vector-database integration. If your team was handed an LLM and a deadline, I can help you ship a RAG pipeline, an agent harness, or the evals that tell you whether any of it works.

I've been writing online since I was fifteen. The form has changed — blogs, newsletters, this site — but the reason hasn't. Writing is the only way I know to verify that I actually understand something. The Modern Coding letter is read by 5,000+ engineers and is where most of what I publish ends up first.

Want to know what it's like to work with me? Read testimonials from past colleagues and clients. Or check my guide to the best AI tools for small business owners — the exact stack I use daily.