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Typescript Software Engineer
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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
As a
Coin Integration Intern
, you'll join a team at the heart of Ledger's mission: integrating and maintaining the blockchains that power our ecosystem.
The Coin Integration team ensures that Ledger devices and applications support a wide range of protocols, from Bitcoin to Solana, Polkadot, and Cosmos.
You'll work closely with experienced engineers to connect hardware, software, and decentralized networks, gaining hands-on experience with technologies shaping the future of Web3.
What You'll Be Doing
We are seeking a motivated and curious
JavaScript/TypeScript developer
to join our team for a 6-month internship. This is a unique opportunity to grow as a software engineer, learn how blockchain integrations are built and maintained, and contribute directly to Ledger's products.-
Contribute to blockchain integrations
by helping integrate and maintain multiple protocols (EVM, Bitcoin, Solana, Polkadot, Cosmos, etc.) within the Ledger ecosystem.
- Build and improve connectivity solutions that allow Ledger products to interact seamlessly with the broader Web3 ecosystem (Wallet API, Wallet Connect, Dapp integrations).
- Develop your engineering skills through hands-on work in JavaScript and TypeScript, using frameworks such as and React, while applying clean code and modular design principles.
- Collaborate with multidisciplinary teams, participating in agile ceremonies, code reviews, and cross-functional discussions to understand how software projects are delivered at scale.
- Learn blockchain from the inside, discovering how various protocols operate and connect with hardware wallets — no prior blockchain experience required, only curiosity.
What We're Looking For
- Currently enrolled in a Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
- Strong programming skills in JavaScript or TypeScript, with experience in or React (from coursework or personal projects).
- Eagerness to learn about blockchain, Web3, and modern software practices.
- Good communication and teamwork skills, with the ability to collaborate in a dynamic, fast-paced environment.
- Interest in software craftsmanship, writing maintainable, well-structured code and exploring functional programming concepts.
- Familiarity with agile workflows and openness to feedback and iteration.
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 transportation.
- Lunch vouchers: Ledger offers a meal allowance with Swile
- Vacation: 1 day off for every full month of work, in addition to national holidays
- Compensation: €800 - €1,500 a month
For regionally specific benefits, your Talent Acquisition contact will be able to provide you with more information.
We're committed to building an inclusive hiring process. If you need any adjustments or accommodations, just let us know, we'll do our best to support you.
