Sam Ezeh

Milton Keynes, England, United Kingdom

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Summary

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Rockstar

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Top School

Sam Ezeh is a software engineer and MEng Computer Science student at Durham University with nine years of hands-on experience across backend, frontend and formal verification roles. He has interned on quantitative and electronic market making teams at Qube Research & Technologies and built production-quality features during internships at Google and Netcraft, blending low-latency thinking with practical engineering. An active open-source contributor, Sam improved core Python modules (zipfile, decimal) and strengthened unittest test coverage, and has added UX and internationalization features to the widely-used Lichess codebase. His background in formal verification and research signals a strong emphasis on correctness and testing, while his HFT/Quant internships reflect comfort with performance-sensitive systems. Based in Milton Keynes, he pairs academic rigor with production experience and a knack for shipping reliable, well-tested code.

9 years of coding experience

1 year of employment as a software developer

Computer Science, Mathematics and Spanish, A-Level, Computer Science, Mathematics and Spanish, A-Level at Aylesbury Grammar School

Master of Engineering - MEng, Computer Science, Master of Engineering - MEng, Computer Science at Durham University

English, Spanish

Github Skills (26)

python10

testing10

typescript10

ui-design10

unzip10

zip10

chess10

front-end-development10

typescript-types10

pkzip10

typescripts10

lichess10

decimals9

unit-testing9

scala9

Programming languages (16)

JavaLeanCSSRustCTeXScalaGo

Github contributions (5)

lichess-org/lila

Jun 2021 - Dec 2022

♞ lichess.org: the forever free, adless and open source chess server ♞

Role in this project:

Full-stack Developer

Contributions:6 reviews, 62 commits, 40 PRs in 1 year 5 months

Contributions summary:Sam primarily contributed to the frontend of the Lichess project, including the UI/UX, and added new features. Their work encompassed enhancing the board editor with endgame positions, performing client-side check detection, and linking to the analysis board in Chess960 games. They also internationalized key features, such as the insight and swiss tournament pages, and addressed general bug fixes and dependency updates.

gamefunctional-programmingplay-frameworknon-profittype-safe

python/cpython

May 2022 - Nov 2022

The Python programming language

Role in this project:

Back-end Developer & QA Engineer

Contributions:15 reviews, 7 commits, 16 PRs in 6 months

Contributions summary:Sam primarily contributed to improving the Python standard library's `zipfile` and `decimal` modules. Their contributions included implementing features like `ZipFile.mkdir` and addressing issues related to handling corrupt zip files, as well as enhancing the `decimal.localcontext` functionality. Additionally, the user worked on improving the test suite for the `unittest` module, demonstrating a focus on testing and quality assurance within the codebase.

python-programmingprogramming-languagepythonpython-programming-language

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