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La French Tech Taiwan

Software Engineer - Wallet Experience - Internship

On site

Paris, France

Internship

13-11-2025

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Skills

Leadership JavaScript TypeScript Problem-solving react Front-end Development Software Development React.js blockchain

Job Specifications

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Software Engineer - Wallet Experience - Internship

Paris
Internship
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About

We’re the forever innovators. On a mission that goes beyond business. Securing digital ownership in a changing world. Unlocking true freedom. We’re revolutionaries.

Looking beyond today. Bridging excellence and pragmatism, with ambition and conviction,to push the limits of what’s possible. That’s what you’ll do here, in this playground of innovation. With leadership and trust, you’ll write the rules of new technology, and create products that redefine security in a digital age.

Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 20% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in UK, US, Switzerland and Singapore, Ledger has a team of more than 500 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 6 millions units already sold in 200 countries.

Job Description

About Ledger

We’re a team of experts pushing the limits of what’s possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in a world where users, creators and enterprises manage their value with ownership and freedom. Our curiosity drives us to innovate, empowering individuals on a global scale. We believe change is constant and our team moves forward as one, with a culture of problem-solving where every employee is empowered and supported to challenge tradition and create solutions. Our mission is simple: to make self-custody accessible and give people the keys to their own financial futures. If you want to make a true impact, we want you to join us at Ledger.

At Ledger, we’re proud to be the global platform for digital assets and Web3, with over 20% of the world’s crypto assets secured through our Ledger devices. With our headquarters in Paris, and offices in Vierzon, Grenoble, Montpellier, London, Portland, Geneva, Zurich and Central Singapore, we have a team of around 600 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets – including the Ledger hardware wallets line with more than 7.5 millions units already sold in 200 countries.

Internship duration: 6 months

The team

Ledger has developed Ledger Wallet, an application to manage all your blockchain-backed assets. It’s built in React.js (Electron on Desktop and React Native on Mobile) and supports multiple blockchains (coins & NFTs) as well as provides multiple services by integrating DApps and offering a SDK for 3rd parties to integrate. Of course, all this is backed by our hardware wallets which Ledger Wallet allows you to manage. This application is developed by several teams, each working on specific parts of the software.

To support our continued growth, we’re hiring an Front-End Software Engineer Interns to join the Wallet Experience business unit. You’ll work directly with the Engineering team to deliver core features across our top-rated native applications.

The ideal candidate will have a passion for experience and design, an eye for detail as well as a deep understanding of front-end development and scalable code.

What You'll Be Doing

Own from a technical standpoint the desktop and mobile development of Ledger Wallet Applications.
Collaborate with our devs, QA, designers, and product within Ledger Wallet teams.Take initiative and offer technical solutions.
Develop features using best practices from unit to e2e testing.
Participate in code reviews. Be responsible for the quality of Ledger’s UI/UX framework.
Work 100% on Open Source projects all gathered in our monorepo: ledger-live.
Share knowledge within Ledger and beyond.

What We Are Looking For

A curious mind with a positive attitude to join a highly collaborative team.
Knowledge of UI/UX practices in software development.
Proficient with JavaScript and TypeScript.
Good experience in React.js development, tools and libraries.
Good knowledge of testing strategies.

Nice To Have

Experience with React Native and/or Electron.
Experience in Web3 topics and technical stack.
Experience in maintaining a library of shared components.

Benefits

At Ledger, we are dedicated to continually investing in our employees which is why we offer more than just salaries; we provide comprehensive compensation packages that include a wide range of benefits. Here are some of the benefits you can look forward to:

Social: Frequent social events, snacks and drinks
Transportation allowance: Ledger offers a commuter allowance to contribute to your preferred means of tra

About the Company

"French Tech Taiwan" gathers all the individuals from startups, companies, investment firms, incubators, accelerators, public bodies, journalists, innovation stakeholders involved in technology entrepreneurship, and with strong interest in linking France and Taiwan. Importantly, we promote "La French Tech" and collaboration opportunities between France and Taiwan innovative tech ecosystems. Know more