# Boris Cherny

Research and product · Creator of Claude Code at Anthropic · joined 2024

Created Claude Code. Before that he was a principal engineer at Meta and wrote O'Reilly's Programming TypeScript.

Full profile: https://www.autumn.ai/resources/anthropic/people/boris-cherny

**At Anthropic:**
- Sep 2024 – present: Head of Applications, Member of Technical Staff
Sources: [1](https://www.linkedin.com/in/bcherny)

**Career before Anthropic:**
- Nov 2017 – Aug 2024: Meta, Principal Software Engineer
- Jan 2015 – Apr 2017: Coatue Management, Architect, Frontend
- Oct 2014 – Dec 2014: Turn, Lead Software Engineer
- Jan 2014 – Sep 2014: Turn, Senior Software Engineer
- Jun 2012 – Jun 2013: AgileMD, Software Engineer, Frontend
- Nov 2011 – Jun 2012: ForwardMetrics, Software Engineer
- Sep 2009 – Oct 2011: C4, Director of Web and Product Development
- Jan 2005 – Nov 2011: BC Design, CEO
Sources: [1](https://www.linkedin.com/in/bcherny)

**Education:**
- Economics, UC San Diego, 2009-2011
Sources: [1](https://www.linkedin.com/in/bcherny)

**Lesser-known facts:**
- Ran his first startup at 18 and studied economics at UC San Diego. [1](https://www.developing.dev/p/boris-cherny-creator-of-claude-code) [2](https://www.linkedin.com/in/bcherny)
- Uninstalled his code editor after a month of not opening it. [1](https://www.developing.dev/p/boris-cherny-creator-of-claude-code)
- Said of joining Anthropic: "The model was ready and no one on the product side was realizing it." [1](https://computerhistory.org/blog/in-conversation-with-boris-cherny-creator-of-claude-code/)
- Early on, Claude Code wrote 10 to 20% of his code. Now over 90% of the Claude Code team's code is written with it. [1](https://workos.com/blog/boris-cherny-claude-code-acquired-interview-takeaways)
- No longer prompts Claude directly. He writes loops that prompt Claude and work out what to build next. [1](https://workos.com/blog/boris-cherny-claude-code-acquired-interview-takeaways)
- Runs five Claude Code sessions at once in separate git checkouts of the same repo, plus five to ten more on the web. [1](https://howborisusesclaudecode.com/)
- Argues prompt engineering matters less than giving Claude a task that seems slightly too hard, plus a way to verify its own work. [1](https://www.searchenginejournal.com/head-of-anthropics-claude-code-says-prompt-engineering-not-that-important/584286/)
- Published a team note called "I am often wrong" describing a six-step problem-solving method, and calls being wrong his favorite thing. [1](https://borischerny.com/management,/product/2026/09/19/I-am-often-wrong.html)

**Interviews and talks:**
- [Computer History Museum conversation with curator David C. Brock (2026)](https://computerhistory.org/blog/in-conversation-with-boris-cherny-creator-of-claude-code/)
- [The Pragmatic Engineer on building Claude Code (2026)](https://newsletter.pragmaticengineer.com/p/building-claude-code-with-boris-cherny)

**Known for:**
- Claude Code (2024)
- Programming TypeScript (O'Reilly)
Sources: [1](https://www.linkedin.com/in/bcherny)

Researched with Autumn (https://www.autumn.ai) from public sources. Updated 2026-10-18. Everyone at Anthropic: https://www.autumn.ai/resources/anthropic/people