Mériadec Pillet
Senior Staff Engineer at Ledger
Paris, Ile-de-France
Summary
🤩
Rockstar🎓
Top SchoolMériadec Pillet is a Senior Staff Engineer with 12 years of hands-on experience building secure, high-performance crypto and web applications from device firmware interfaces to B2B enterprise services. Based in Paris, he has led architecture and refactoring efforts at Ledger, shipping multi-signature systems, bridging hardware security modules and personal devices, and bootstrapping Ledger’s B2B initiatives like Ledger Multisig. He combines deep full‑stack skills (TypeScript, C, Bash) with a command-line-centric craftsmanship—evident from sustained contributions to Ledger’s JavaScript libraries and the Ledger Live codebase. Comfortable across UI/UX, backend services and low-level device communication, he accelerates developer and QA workflows through pragmatic internal tooling. A pragmatic engineer and mentor, he pairs attention to developer experience with a security-first mindset for institutional crypto custody. Outside work he’s a “vim priest” and mountain enthusiast, hinting at a preference for focused, minimalist tooling and enduring challenges.
12 years of coding experience
11 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at 42 Paris
French, English
Stackoverflow
2,983reputation
294kreached
69answers
2questions
css
top-5%
forms
top-5%
html
top-5%
angularjs
top-5%
Github Skills (37)
javascript10
flow-control10
work-flow10
typescript10
bitcoin10
bitcoins10
ui-design10
uid10
front-end-development10
control-flow10
typescript-types10
flowtype10
typescripts10
refactoring10
react10
Programming languages (16)
Github contributions (5)
LedgerHQ/ledger-live-desktop
Dec 2017 - May 2019
⛔️ DEPRECATED - Ledger Live (Desktop)
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:35 releases, 1217 commits, 802 PRs in 1 year 5 months
Contributions summary:Mériadec appears to be involved in the development of the frontend for this deprecated Ledger Live (Desktop) repository, as evidenced by the commits focusing on changes in React components. Their contributions include UI updates, layout adjustments, integration with internationalization libraries (i18next), and the addition of a search component, as well as the integration of styling elements. The commits indicate the user is also involved in integrating core functions like device communication.
electronwalletcryptocurrencydesktopledger
LedgerHQ/ledger-live-common
Mar 2018 - Feb 2021
⛔️ DEPRECATED - Common ground for the Ledger Wallet apps
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:310 commits, 36 PRs, 20 pushes in 2 years 11 months
Contributions summary:Mériadec's commits primarily involve refactoring and updating existing code, demonstrating a focus on code style and formatting. They made changes across multiple files, including test files and mock data, suggesting involvement in various aspects of the codebase. The user addressed type definitions, indicating a strong understanding of the project's architecture and data structures, and made changes to mock account generators. The edits also included adjustments to the data model and account types.
ethereumblockchainwalletcryptocurrencyledger
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