Basil Hosmer
Member Of Technical Staff at Anthropic
New York, New York, United States
Summary
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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 UniversityProgramming languages (2)
Github contributions (2)
modelcontextprotocol/specification
Mar 2025 - Mar 2025
The specification of the Model Context Protocol
Contributions:12 reviews, 3 PRs, 12 pushes in 21 days
modelcontextprotocol/python-sdk
Mar 2025 - Mar 2025
The official Python SDK for Model Context Protocol servers and clients
Contributions:3 reviews, 3 comments in 8 days
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