Javascript Web3 Jobs in Europe

Founded in 2014, Ledger is the global platform for digital assets and Web3. Over 15% of the world’s crypto assets are secured through our Ledger Nanos. Headquartered in Paris and Vierzon, with offices in the UK, US, Switzerland and Singapore, Ledger has a team of more than 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 5 millions units already sold in 180 countries. 

At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency. Have a look at our Origins video here.

We're looking for a motivated profile for an internship within our QA Automation Team, that will be focused on 2 main topics.

Duration: 6 months

Start date: January/ March 2024

The mission

• Improving the coverage and quality of automated tests on Ledger Live :
The aim is to optimize non-regression tests and reduce the risks associated with mocks and simulators inherent in end-to-end testing.
Automated tests are currently based on mocks to hide communication with hardware wallets and make tests isolated and autonomous.
The aim of the internship is to replace the mocks with an existing Nano simulator.
The benefit will be to increase test quality and test coverage (in relation to the code).


• Optimization of test execution on the development factory (CI) :
Study on parallelization of execution to reduce time
Improved reporting, consolidation of automated test reports (integration and end-to-end)
Set up link between test repository (JIRA XRay) and automated test execution (E2E UI)

• A bachelor/master degree in Computer Science,
• A curious mind with a positive attitude to join a highly collaborative team,
• Coding skills in Typescript or Javascript
• Some knowledge or interest for CI/CD topics, using Git
• A good level in English

What's in it for you?

• Flexibility: A hybrid work policy
• Social: Frequent social events, snacks and drinks
• High tech: Access to high performance office equipment and gadgets, including Apple products
• Transport: Ledger reimburses 75% of your preferred means of transportation
• Food: We offer lunch vouchers with Swile
• Vacation: 1 day off for every full month worked