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Boris Cherny

Boris Cherny

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About Boris Cherny

Boris Cherny is a Staff Engineer at Anthropic and the creator of Claude Code. He previously worked at Meta as a Principal Engineer and authored "Programming TypeScript" from O'Reilly.

Career Highlights

  • Anthropic (2023-present): Creator of Claude Code
  • Meta (2015-2023): Principal Engineer, worked on Facebook Groups
  • Programming TypeScript (2019): O'Reilly book on TypeScript
  • State management: Created functional programming frameworks

Notable Positions

On Claude Code's Impact

Real productivity metrics:

"Anthropic has tripled in headcount, but productivity per engineer has grown 70% because of Claude Code. That's not automation replacing work - that's augmentation creating leverage."

On Engineering Leverage

The shrinking team size for big projects:

"A project that took 20-30 engineers two years (Facebook Groups migration) could now be done by 5 engineers in 6 months. If you ask me this question in 6 months, my answer will be totally different. In 6 months the answer might be this is actually one engineer."

On Building for the Future

"Don't build for the model of today. Build for the model 6 months from now. Models are moving so fast that building for today's capabilities is already obsolete."

On Generalists

"At Anthropic, product managers code. Data scientists code. User researchers code. This isn't about job titles blurring - it's about reducing the coordination costs of building."

Key Quotes

  • "70% productivity boost from Claude Code."
  • "Build for the model 6 months from now."
  • "Maybe just one engineer in 6 months."