Lucien Peslier
Frontend Engineer at Proton | Privacy by Default
Paris, Ile-de-France
Summary
👤
Senior🎓
Top SchoolLucien Peslier is a frontend engineer with 10 years of experience building polished, user-centered web applications from Paris, currently contributing to Proton’s web clients and Meilleurs Agents. He blends deep JavaScript/React expertise with hands-on DevOps (CI/CD, AWS, Docker, Terraform) and a background in UX, graphic design and marketing, which helps him bridge product, design and engineering. At Novatopo he led the redesign and full-stack project setup—owning webpack/babel/jest pipelines, internationalization, GraphQL integration and Terraform-driven AWS deployments. His contributions to the ProtonMail monorepo include UI/UX refinements, accessibility fixes and test bug resolution, showing attention to polish and quality in a high-profile open-source-adjacent product. Lucien is motivated by workflow improvement and cross-discipline collaboration, often driving product decisions and user testing beyond pure frontend implementation.
10 years of coding experience
3 years of employment as a software developer
Gestion du Web / multimédia et webmaster, Gestion du Web / multimédia et webmaster at IUT HaguenauInformatique, Informatique, 1ére année de DUT, Informatique, Informatique, 1ére année de DUT at IUT Nancy-CharlemagneLycée Marcel Pagnollicence pro, développeur web, licence pro, développeur web at IUT de Haguenau
Github Skills (13)
uid10
javascript10
front-end-development10
ui-design10
jestjs10
react10
jtest10
jes10
interface-design9
user-interface9
monorepo8
css8
html8
Programming languages (12)
Github contributions (5)
ProtonMail/WebClients
Jan 2023 - Mar 2023
Monorepo hosting the proton web clients
Role in this project:
Front-end Developer
Front-end DeveloperContributions:47 commits in 1 month
Contributions summary:Lucien primarily focused on enhancing the user interface and user experience of the ProtonMail web client. They addressed and fixed issues within unit tests, specifically related to the `useLink` hook, ensuring tests ran correctly. The user implemented visual improvements, such as adding illustrations and text to the search results, and refactored the UI by integrating a dropdown menu for the "New" action button. They also made accessibility improvements by adding `isMultiSelectionDisabled` props to the `HeaderCell`.
hostingmonoreporeactwebmailyarn
HeadFox/npm-update-tool
Jun 2021 - Jun 2021
Contributions:10 releases, 46 commits, 2 PRs in 17 days
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