Francois Laithier
Software Engineer at Expensify
San Francisco, California, United States
Summary
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Rockstar🎓
Top SchoolFrancois Laithier is a seasoned software engineer with 13 years of hands-on experience, based in San Francisco and currently building at Expensify since 2012. Trained in computer science with engineering roots from Université de Technologie de Belfort-Montbéliard and further study at Université de Sherbrooke, he blends rigorous academic grounding with long-term product engineering in finance-focused tooling. Over a decade at a single fast-moving company suggests deep domain expertise in payment and expense workflows, reliability, and scaling web services. He brings a pragmatic, product-oriented approach to engineering, favoring durable solutions that support high-velocity teams. Colleagues would describe him as a steady technical contributor who understands both legacy codebases and incremental modernization.
13 years of coding experience
Diplôme d'ingénieur, Computer Science, Diplôme d'ingénieur, Computer Science at Université de Technologie de Belfort-MontbéliardComputer Science, Computer Science at Université de Sherbrooke / Sherbrooke University
Stackoverflow
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0reached
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Github Skills (35)
financial10
user-friendly10
bash10
failover10
redux10
chat10
persistent10
command-line10
boilerplate10
shell10
wan10
rust10
replication10
collaboration10
database10
Programming languages (8)
Github contributions (5)
Expensify/Integrations
May 2013 - Dec 2014
Documentation, scripts, and sample files related to integrating Expensify into external ecosystems.
Contributions:19 commits in 1 year 6 months
integratingexpensifyecosystems
francoisl/dotfiles
Apr 2015 - Apr 2025
Contributions:4 PRs, 235 pushes, 6 branches in 10 years 1 month
reactjavascriptnodejsreduxkoala
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