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Ledger
Javascript Senior Software Engineer Devices
at Ledger
7 months ago | 526 views | 5 applications

Javascript Senior Software Engineer Devices

Full-time
France
Per year
$100,000 To $200,000

About the company

Founded in Paris in 2014, LEDGER is a global platform for digital assets and Web3. Ledger is already the world leader in Critical Digital Asset security and utility. With more than 6M devices sold to consumers in 200 countries and 10+ languages, 100+ financial institutions and brands as customers, 20% of the world’s crypto assets are secured, plus services supporting trading, buying, spending, earning, and NFTs. LEDGER’s products include: Ledger Stax, Nano S Plus, Nano X hardware wallets, LEDGER Live companion app, [ LEDGER ] Market, the world’s first secure-minting and first-sale distribution platform, and Ledger Enterprise. With its ease of use, LEDGER allows a user to begin investing in digital assets and ultimately, achieve financial freedom in a safe and stress-free environment.

Job Summary

Your missions:

📍You join Ledger Live engineering team to maintain and develop on Ledger Live stack involving Ledger Live apps (mobile and desktop) and its ecosystem, 📍Your work involves working 100% on Open Source projects all gathered in our monorepo: ledger-live, 📍You participate to our modularization effort by contributing to our upcoming Device SDK, intended for both internal and external usageYou maintain and extend our @ledgerhq/hw-transport-* libraries that implement communication protocol with Ledger hardware wallet devices through many communication channels (U2F, HID, WebUSB, Bluetooth,...) and platforms (Web, Node, Electron, React Native,...), 📍You contribute to “My Ledger” section on Ledger Live application where users can update their devices’ firmware and install applications, 📍You collaborate closely with other engineering teams like the Firmware team as well as your Product teamYou help our QA team to automate even more our testing approaches, 📍You hunt bugs: Be involved in investigating bugs in the complex world of blockchains edge cases.

What we’re looking for:

📍Engineer profile with at least 7 years of experience in software development and a tech lead experience, 📍A curious mind with a positive attitude to join a highly collaborative teamProficient with JavaScript and TypeScript, 📍Strong background/interest in algorithm development and optimization to work on our stack: work with devices using APDU, messages, work with blockchain technologies, etc., 📍Excellent knowledge of React and hooks, 📍Nice to haveFunctional reactive programming (RxJS)Experience with bluetooth or HID communication, 📍Previous experience working with embedded systems, 📍Open source experience.

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