Ryan Lopopolo (he/him)

I am a software engineer with a passion for building resilient, scalable systems. I am a deep generalist with a bias toward backend services and infrastructure.

I work at OpenAI, where I am building the Seattle office and focused on how AI agents operate safely and effectively in enterprise contexts. I am currently focused on OpenAI Frontier. Previously, I was a tech lead at Snowflake building the data marketplace and a group tech lead for developer productivity at Brex, where I led a team of 40 and supported a 350-person engineering organization. I also worked at Stripe as a tech lead across infrastructure and product as the company grew from 600 to 6,000 employees. I started my career at Box and Citadel.

I am deeply proficient with coding models and agentic development workflows. As of February 17, 2026, my personal usage exceeds 1B tokens per day, and my team’s aggregate usage exceeds 3B tokens per day.

My first love is the Ruby programming language. I am very productive in Rust, Python, and TypeScript. I am lucky enough to have used all of these tools professionally and I use all of them while building Artichoke Ruby, an alternative Ruby implementation written in Rust. 💎 🦀 🐍

I am a foodie 😋 and am always hooked up to Spotify 🎧. I enjoy hiking and snowshoeing in the Pacific Northwest 🏔️, strength training 💪, and working in my garden 🌱. I run a production observability stack at home to support my home automation infrastructure 🧑‍💻.