Frederic Barthelemy
Co-Founder, Engineering at Cooks Atlas
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolFrederic Barthelemy is a seasoned engineering leader and co-founder based in San Francisco with 15 years of experience building mobile-first products, distributed backends, and developer-facing libraries. Currently leading technology at Cooks Atlas, he blends hands‑on iOS and React Native expertise—evident from contributions to MessageKit, tipsi-stripe and react-native-parsed-text—with a strong product and architecture mindset. He has a track record of delivering major rewrites and design systems at companies like TaskRabbit and Fitbit, and of scaling teams to hit ambitious schedules while improving stability. A pragmatic technologist and mentor, he’s driven cross-company initiatives (including the strategic removal of social auth to increase revenue) and repeatedly brings operational, low-level engineering work together with high-level product impact.
16 years of coding experience
18 years of employment as a software developer
BSE-CSE, Computer Science Engineering, BSE-CSE, Computer Science Engineering at University of MichiganBSE-CSE, Computer Science Engineering, BSE-CSE, Computer Science Engineering at University of Michigan - College of Engineering
Spanish, English, French
Github Skills (39)
wp-graphql10
github-ci10
javascript10
typescript310
danger10
ios10
react-native10
continuous-integration10
jes10
github-actions-workflows10
typescript10
typescript210
regex10
javascripts10
uicollectionview10
Programming languages (24)
Github contributions (5)
taskrabbit/react-native-parsed-text
Nov 2018 - Jun 2020
Parse text and make them into multiple React Native Text elements
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:2 releases, 42 commits, 15 PRs in 1 year 7 months
Contributions summary:Frederic primarily contributed to the `react-native-parsed-text` repository by enhancing the parsing and text rendering capabilities of the library. They upgraded dependencies like Babel and React Native, switched the testing framework to Jest, and improved URL parsing, including handling various URL formats and edge cases. Additionally, the user refined the existing code to prevent unexpected punctuation and fixed an issue with long TLDs.
reactreact-nativeelementsparsingparse
tipsi/tipsi-stripe
Jul 2019 - Mar 2020
React Native Stripe binding for iOS/Android platforms
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:2 reviews, 102 commits, 62 PRs in 8 months
Contributions summary:Frederic primarily contributed to the iOS implementation of the React Native Stripe binding library. Their work focused on integrating and configuring the Stripe iOS SDK, specifically implementing the `STPAppInfo` configuration and adapting features like card form and Apple Pay for React Native use. They also refactored the `paymentRequestWithCardForm` method to align with Stripe's API changes. Furthermore, they worked to surface and test the supported Apple Pay networks.
stripereactreact-nativeios-androidplatforms
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