Augustin Le Fèvre
Lead Engineer at Klarna
Greater Stockholm Metropolitan Area Sweden
Summary
🤩
Rockstar🎓
Top SchoolAugustin Le Fèvre is a Lead Engineer with 11 years of experience building resilient front-end systems, currently driving engineering work at Klarna in the Greater Stockholm area. He specializes in React and functional programming principles, with a strong focus on static typing, ASTs and rigorous testing practices. His open-source contributions include meaningful fixes and API enhancements to the popular react-native-testing-library, improving text-matching and event handling for more reliable UI tests. Augustin’s background spans full-stack roles and data-visualization prototyping from research settings, giving him a blend of product empathy and technical depth. He mentors teams toward better testing discipline and API design while staying hands-on with implementation details. Colleagues appreciate that he pairs pragmatic engineering with an eye for language-level correctness that prevents subtle bugs.
10 years of coding experience
8 years of employment as a software developer
Master's degree, Human Centered Informatics, Master's degree, Human Centered Informatics at Aalborg Universitet / Aalborg UniversityMaster's degree, Computer Science, Master's degree, Computer Science at Ecole supérieure d'Ingénieurs en Electrotechnique et Electronique
French, English, danois, German
Github Skills (6)
javascript10
react-native10
querying10
jestjs10
react10
testing10
Programming languages (6)
Github contributions (5)
callstack/react-native-testing-library
Aug 2020 - Oct 2022
🦉 Simple and complete React Native testing utilities that encourage good testing practices.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:154 reviews, 11 commits, 14 PRs in 2 years 2 months
Contributions summary:Augustin contributed significantly to the `react-native-testing-library` repository. Their work includes fixing bugs related to querying text within components, such as edge cases with nested text elements. They also enhanced the `fireEvent` API by forwarding extra data to press events, improving the library's functionality for more complex user interactions. Furthermore, the user implemented a new API for more precise text matching options, offering greater flexibility and control over testing text-based UI elements.
reactreact-native-testingjestreact-nativetesting
AugustinLF/blog
Mar 2019 - Oct 2022
Personal blog
Contributions:63 PRs, 40 pushes, 39 branches in 3 years 8 months
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