09 Mar 2026
1h 20m

OpenAI Codex Tech Lead On How His Career Grew And How He Uses Codex | Michael Bolin

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The Peterman Pod

Michael Bolin, tech lead for the open-source Codex repository and former distinguished engineer at Meta, discusses his career growth and experiences in the tech industry. Bolin recounts his early excitement about Google and his work on Google Calendar, later transitioning to Facebook where he tackled build tooling challenges in the Android code base, eventually creating the Buck build system. He shares insights into the culture differences between research-led organizations like OpenAI and engineering-driven companies such as Meta. Bolin also details his work on the virtual file system Eden and the file search tool Miles, which significantly improved file search speeds within Meta. Furthermore, he reflects on the importance of continuous learning, recommending resources like operating systems books and CTF competitions for engineers.

Outlines

Part 1: Early Career, Google, and Web Foundations

Part 2: Facebook and the Evolution of Build Systems

Part 3: Infrastructure, Search, and Organizational Dynamics

Part 4: Transition to OpenAI and the AI Era

Part 5: Technical Growth and Engineering Education

Part 6: Career Advice and Leadership Insights

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