Scala Software Engineer

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

You will join the backend blockchain team which is in charge of building and maintaining Ledger blockchain infrastructure, core transactional data services, and indexing layers.

The team is composed of passionate Engineers who believe in the benefits and strength of functional programming to develop robust and scalable platforms and APIs, whlie also being eager to understand and implement product and business requirements.

We are convinced that being an engineer is also taking time to challenge, discuss and share what we are working on.

We use Scala extensively to build our backend services and tooling. Have a hand-on experience with it is a great plus, but if you don't know it we will teach it to you.

We take time to have every other week a dedicated knowledge-sharing meeting and participate actively in the community (Meetups, Conferences, Open source contributions, etc…).

What you'll be doing

• Add capabilities to our in house JsonRPC reverse proxy (websocket support, session stickieness, ...)
• Deliver a high-quality piece of software (Test it, Document it, Demonstrate it)
• Conduct benchmarks to identify bottlenecks and optimize the overall performance
• Implement introspectability (web UI) and metric publication.

What we're looking for

• Good knowledge of Linux operating systems
• Adaptability to do teamwork in a fast-evolving environment: You are autonomous, proactive, and capable of self-training.
• Experience with continuous integration/deployment solutions
• Knowledge of Containerization and Cloud deployments
• Having an interest in cryptocurrencies and wishing to work with blockchain technology is a real plus
• Enthusiastic about teamwork, learning, and teaching (meet-ups, hackathons, training…)

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.