OpenAI Eng & Dev Tools Founder: How Software Engineering Is Changing | Charlie Marsh

OpenAI Eng & Dev Tools Founder: How Software Engineering Is Changing | Charlie Marsh

June 22, 2026 · 1h 23m

About this episode

Charlie Marsh discusses the evolution of software engineering and shares insights from his experience as a startup founder.

Charlie Marsh is the founder of Astral, the Python devtool startup that was acquired by OpenAI. I inteviewed him about how software engineering is changing and learnings from starting his own company as an engineer. • My ergonomic keyboard project I mentioned, you can follow along here: https://read.compose.llc/ • The Kickstarter page for it: https://www.kickstarter.com/projects/ryanlpeterman/compose-simple-ergonomics-beautifully-done Podcast links: • YouTube: https://youtu.be/Iw65FD4MGgs • Apple: https://podcasts.apple.com/us/podcast/the-peterman-pod/id1777363835 • Transcript: https://www.developing.dev/p/openai-eng-and-dev-tools-founder Thank you to this episode's sponsor for supporting my work: • WorkOS: makes your app Enterprise Ready with easy to use APIs to add SSO, SCIM, RBAC, and more in just a few lines of code, check them out at https://workos.com/ Timestamps: (00:00) Intro (00:40) Origin story (06:04) The front page of Hacker News (14:35) Why he chose Rust (20:10) Full codebase migration from Zig to Rust (28:40) LLM generated code and open source (35:34) Performance optimizations (44:54) Optimization with AI and combating slop (01:02:08) Learnings as an eng starting a…

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