Ganesh Sittampalam
Research Engineer at XBOW
United Kingdom
Summary
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Rockstar🎓
Top SchoolGanesh Sittampalam is a research engineer and seasoned software practitioner with 21 years of experience building compilers, language tooling, and developer-facing products across academia and industry. He holds a PhD from Oxford and has led core compiler and optimization work at ARM and in programming-language research, later applying that expertise to quantitative engineering at Credit Suisse and to productizing AI-driven developer tooling at GitHub (notably on Copilot). An active open-source contributor, he has improved heavyweight projects such as the Soot Java optimization framework and the Haskell Language Server, contributing nontrivial compiler passes and IDE integrations. Known for bridging deep PL research with production systems, he combines low-level optimization experience with practical leadership in cross-functional teams.
21 years of coding experience
21 years of employment as a software developer
King's College School WimbledonPhD Computer Science, PhD Computer Science at University of OxfordBSc Mathematics, BSc Mathematics at University of Surrey
English, French
Stackoverflow
28,980reputation
857kreached
352answers
13questions
recursion
top-5%
haskell
top-1%
declaration
top-5%
ocaml
top-5%
composition
top-5%
monads
top-5%
Github Skills (32)
jimp10
ide10
soot10
java10
javas10
j10
bytecode10
ghc10
server10
haskell10
optimization10
composition9
polymorphism9
analyser9
ocaml9
Programming languages (15)
Github contributions (5)
soot-oss/soot
Jul 2004 - Dec 2004
Soot - A Java optimization framework
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 commits in 5 months
Contributions summary:Ganesh contributed to the Soot Java optimization framework by implementing features and making improvements to existing components. The commits focused on enhancing the framework's capabilities, including the addition of a null check eliminator and refactoring constructor references. The user also addressed exception handling and type-related issues within the framework. These changes highlight the user's involvement in improving the performance and reliability of the Java optimization process.
java-optimization-frameworksootjava-optimizationoptimization-frameworkoptimization
haskell/haskell-language-server
Sep 2019 - Sep 2019
Official haskell ide support via language server (LSP). Successor of ghcide & haskell-ide-engine.
Role in this project:Back-end Developer
Back-end DeveloperContributions:10 commits, 3 comments, 6 issues in 5 days
Contributions summary:Ganesh primarily contributed to the development of the Haskell Language Server (HLS), focusing on core functionalities. Their work included improvements to the IDE's core compiler integration, particularly related to diagnostics and error handling. They implemented support for hs-boot files, enhancing the language server's ability to handle different Haskell module types, and added a code action to fill in GHC's suggested type signatures. The user also made improvements to test suites and warning messages within the project.
ghchaskell-language-servercabalhaskelllsp-server
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