Thomas Genin
Distinguished Senior Principal AI Slope Handler at Hover
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolThomas Genin is a seasoned engineering leader with 13 years of experience building high-performance web and backend systems, currently shaping AI agent workflows as Distinguished Senior Principal AI Slope Handler at Hover in San Francisco. He has a proven track record of scaling teams and release velocity from director to principal roles at companies like Fieldwire, Hipmunk, Expensify and Apple, combining product-minded engineering with process and observability improvements. Technically hands-on, he contributed substantive features to the widely used prettier/plugin-php—adding PHP 8.1 support and robust test coverage—demonstrating deep language and tooling expertise. Equally comfortable in strategic roles and in-code contributions, he’s known for improving CI/CD, performance, and developer experience while translating customer specs into practical AI-driven solutions.
13 years of coding experience
12 years of employment as a software developer
GEII / Bachelor in Electronics, Electronics, GEII / Bachelor in Electronics, Electronics at Université Jean Monnet Saint-EtienneNetwork, Network at École de technologie supérieureMaster of Science, Computer Science, Master of Science, Computer Science at Université de Technologie de Compiègne (UTC)
English, French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
pretier10
parserator10
prettify10
php10
formatter10
parser10
formatters10
testing8
Programming languages (12)
Github contributions (5)
prettier/plugin-php
Feb 2022 - Jan 2023
Prettier PHP Plugin
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 5 commits, 5 PRs in 11 months
Contributions summary:Thomas contributed significantly to the `prettier/plugin-php` repository, focusing on enhancing PHP language support within the Prettier code formatter. The commits added support for PHP 8.1 features like enums, readonly properties, intersection types, and readonly classes, while simultaneously updating the PHP parser. These changes involved modifications to the printer and utility files to accommodate new language features, demonstrating a deep understanding of the PHP language and the Prettier plugin's internal workings. Test cases were also updated to reflect and validate the new features added to the plugin.
beautifierphp5phpprinterautoformat
genintho/test
Aug 2016 - Mar 2025
test for scripts
Contributions:66 PRs, 61 pushes, 104 branches in 8 years 8 months
testing
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.