Typescript Software Engineer, Ledger

Ledger

Location:
France, Paris

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

800.00 - 1500.00 EUR / Month

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Job Description:

We are seeking a motivated and curious JavaScript/TypeScript developer to join our team for a 6-month internship. 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.

Job Responsibility:

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 Node.js 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

Requirements:

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 Node.js 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

What we offer:

Frequent social events, snacks and drinks
Transportation allowance to contribute to your preferred means of transportation
Meal allowance with Swile
1 day off for every full month of work, in addition to national holidays

Additional Information:

Job Posted:
November 11, 2025

Employment Type:

Fulltime

Work Type:

On-site work

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Typescript Software Engineer