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Software Engineer in Test

work on the OS devops and testing environment, and associated continuous integration

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2 weeks ago

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Role Overview

To sustain the company's growth, Ledger is looking for a new talent to reinforce the Embedded OS team, dedicated to implementing the Operating System running all our Hardware Wallets.


1/ Work on the OS devops and testing environment, and associated continuous integration:

  • Maintain and implement evolutions of the OS testing framework in Python
  • Maintain and enhance the devops environment and OS continuous integration
  • Maintain and implement evolutions of the OS simulator used internally
  • Ensure the quality of the overall OS testing coverage

2/ Work on the OS specification, implementation and testing:

  • Implement secure and documented source code
  • Implement the associated SDK features aimed at embedded applications development

3/ Main interactions:

  • Embedded OS other team members for day-to-day interactions
  • Embedded Applications team for SDK evolutions,Infrastructure team for solutions and tooling deployment follow-up


  • Diploma in Computer Sciences, Engineering or related discipline
  • Good communication skills
  • Interest in setuping tooling for technical debt management
  • Python software development
  • At ease with Jenkins or Github Actions configuration and maintenance


  • Embedded C software development
  • Qemu knowledge

Culture & Perks:

At Ledger, we embody the values that make us unique: Pragmatism, Audacity, Commitment, Trust and Transparency.


  • Equity: Employees are the foundation of our success, and we award stock options so you can share in that success as we grow 
  • Flexibility: A hybrid work policy
  • Social: Annual company outing for Ledgerdary Days, plus frequent social events, snacks and drinks
  • Medical: Comprehensive health insurance policy offering extensive medical, dental and vision care coverage 
  • Well-being: Personal development, coaching & fitness with our dedicated partners
  • Vacation: Five weeks of paid leave per year, in addition to national holidays and rest & relaxation (RTT) days
  • High your tech: Access to high performance office equipment and gadgets, including Apple products 
  • Transport: Ledger reimburses part of your preferred means of transportation. 
  • Discounts: Employee discount on all our products


Montpellier, France

About Us

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 900 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.

We're making the world of digital assets accessible and secure for everyone. Join the mission!