Shayne Fletcher
Software Engineer at Meta
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolShayne Fletcher is a seasoned software engineer with 11+ years of experience building language tooling, compiler internals, and infrastructure across finance and tech. Currently at Meta on AI infrastructure, he previously led language-engineering work on the DAML compiler and contributed core changes to GHC and HLint, demonstrating deep expertise in Haskell, type systems, and code generation. His background spans quant engineering and production C++ libraries at major financial firms to modern Rust/OCaml build automation, giving him a rare blend of production-grade systems and language-research chops. Notably, he rewrote critical parts of the daml2ts TypeScript generator to support nested optionals, numeric types, and robust serialization, showing attention to both correctness and developer ergonomics. Based in New York, he thrives on open source collaboration and tackling hard problems at the intersection of compilers, tooling, and large-scale infrastructure.
10 years of coding experience
28 years of employment as a software developer
The University of Sydney
English, Japanese
Github Skills (30)
parser10
typescript10
daml10
ocaml10
code-generation10
compiler-design10
parsing10
parse10
build-automation10
typescript-types10
ghc10
typescripts10
refactoring10
haskell10
serializer9
Programming languages (13)
Github contributions (5)
digital-asset/daml
Jan 2020 - Jun 2020
The Daml smart contract language
Role in this project:
Back-end Developer
Back-end DeveloperContributions:128 commits, 248 PRs, 578 pushes in 5 months
Contributions summary:Shayne primarily worked on refactoring and improving code generation for the Daml smart contract language, specifically focusing on the TypeScript code generator (daml2ts). Their contributions involved rewriting the sum-of-product functionality, adding features like nested optional support, and modifying serialization, deserialization, and error handling. The changes included modifications to the code generator's core components, supporting numeric types, and providing associated key types and ledger features.
dltbazelsmart-contractcontractblockchain
ndmitchell/hlint
Jan 2020 - Aug 2022
Haskell source code suggestions
Role in this project:Back-end Developer
Back-end DeveloperContributions:31 reviews, 92 commits, 150 PRs in 2 years 7 months
Contributions summary:Shayne primarily focused on refactoring and upgrading the codebase, specifically related to extended instances and configuration within the HLint project. They made changes to Haskell source code files, particularly modifying configurations and matching logic. The user's commits involved improvements to the parsing and matching aspects of the project.
hackagehaskellsuggestions
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.