Andrey Prokopenko
Haskell Backend Engineer at Chordify
Utrecht, Utrecht, Netherlands
Summary
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Rockstar🎓
Top SchoolAndrey Prokopenko is a Haskell backend engineer with 11 years of experience building high-load systems and bringing functional programming into industry applications, currently working at Chordify in Utrecht. He has led engineering efforts from co-founding a startup that applied Haskell to used-car market analysis to designing interactive digital ad solutions at GetShop.TV. His open-source contributions include stability and compatibility improvements to notable Haskell projects like fay (a Haskell-to-JS compiler subset) and snoyberg/http-client, demonstrating deep knowledge of compiler internals and robust network error handling. Comfortable across telecom-grade ETL, real-time billing, and distributed GIS systems, he combines rigorous applied-math training with pragmatic product-minded iteration. Colleagues rely on him to turn Haskell’s theoretical strengths into concrete, repeatable industry use cases.
11 years of coding experience
9 years of employment as a software developer
Диплом специалиста по инженерной специальности, Applied Mathematics, Диплом специалиста по инженерной специальности, Applied Mathematics at Saint Petersburg State University
Русский, English, German, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (16)
connect10
connections10
http-client10
error-handling10
compiler-design10
exception-handling10
connection-pool10
http-conduit10
connection-manager10
haskell10
ghc10
connection-pooling10
computer-engineering9
build-automation8
version-control7
Programming languages (10)
Github contributions (5)
faylang/fay
Sep 2017 - Jun 2021
A proper subset of Haskell that compiles to JavaScript
Role in this project:
Back-end Developer
Back-end DeveloperContributions:58 commits, 17 PRs, 42 pushes in 3 years 9 months
Contributions summary:Andrey primarily contributed to the Fay compiler project by implementing and improving core functionalities related to the compilation process. The commits demonstrate changes to the compiler's typechecking, import handling, and code generation modules. Key contributions include resolving compilation issues related to stack usage and GHC versions, ensuring compatibility and stability of the Fay compiler with different environments. Furthermore, the user has made version bumps of the project.
ghcjavascripthaskellsubsethackage
snoyberg/http-client
Feb 2021 - Feb 2021
An HTTP client engine, intended as a base layer for more user-friendly packages.
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 reviews, 9 commits, 1 PR in 3 days
Contributions summary:Andrey primarily focused on improving the stability and robustness of the `http-client` library. Their contributions involved addressing connection timeout issues by implementing connection closing and handling related exceptions. They modified the core components, including manager and core files, to enhance error handling and connection management. The user also made minor documentation updates and fixed typos within the codebase.
http-clienthaskellhttp-serveruser-friendlyclient-engine
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