Basil Hosmer
Member Of Technical Staff at Anthropic
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolBasil Hosmer is a seasoned software inventor and engineer based in New York, currently a Member of Technical Staff at Anthropic with a long career spanning language design, compilers, and developer tools. He spent over a decade at Facebook/FAIR working on systems like SysML and PyTorch-related projects, and previously led language and runtime work at Adobe including the Mesh language, the Halfmoon JIT, and the Fiber modeling stack. His background blends deep compiler and type-system expertise with practical systems engineering—from high-performance XSLT engines and trading systems to mobile platforms and rich-client compilers. Notably, he has repeatedly created language- and compiler-level innovations that reduce the cost of concurrency and improve developer ergonomics. A Columbia-educated computer scientist, he pairs research-level thoughtfulness with decades of shipped, production-quality software.
1 year of coding experience
38 years of employment as a software developer
BA, Computer Science, BA, Computer Science at Columbia University
Github Skills (15)
tui10
typescript10
git-workflow10
visual-testing10
specification10
python10
cli10
agentic9
claude8
testing7
authorization4
infrastructure3
anthropic2
access-management1
infrastructure-as-code1
Programming languages (2)
Github contributions (5)
modelcontextprotocol/example-remote-server
Sep 2025 - Mar 2026
A hosted version of the Everything server - for demonstration and testing purposes, hosted at https://example-server.modelcontextprotocol.io/mcp
Contributions:4 reviews, 4 PRs, 19 pushes in 6 months
testing
modelcontextprotocol/typescript-sdk
Apr 2025 - Apr 2026
The official TypeScript SDK for Model Context Protocol servers and clients
Contributions:36 reviews, 28 PRs, 37 pushes in 1 year
typescriptmcpmcp-servermcp-client
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