Senior SDET

Ledger
London

About Ledger

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.

The team

As an SDET at Ledger, you'll collaborate with a team of QA Automation Engineers to create tools and processes that enable product squads to independently manage test automation and take responsibility for the quality of their deliverables.

What you’ll be doing

  • Designing and developing tools to improve quality assurance process for all contributors of SDLC

  • Build new and maintain existing workflows for CI/CD pipelines

  • Creating and developing test automation frameworks

  • Developing and implementing processes and approaches for effective automation testing

  • Integrating automated testing into Quality Assurance practices

  • Conducting workshops and pair-programming sessions with different teams

  • Communicating with product squads about the improvements following the strategy, sharing of experiences, best practices and lessons learnt

What we're looking for

  • Hands-on experience in developing test automation solutions using TypeScript

  • Experience in a web automation testing framework such as Playwright, Detox or Selenium

  • Proficient in front-end and back-end testing tools and approaches

  • Good knowledge of development processes, design patterns and programming principles

  • Prior experience designing workflows and building CI/CD pipelines

  • Strong analytical and problem-solving skills

  • Team player and able to work in a collaborative environment

  • Ability to think outside of the box and be innovative by keeping abreast of new trends, identifying opportunities to bring in change for business benefit

  • Strong communication skills in spoken and written English

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:

  • Flexible work options - Our hybrid policy allows employees to work from home up to 3 times per week

  • Health & Wellness support - Health and Life Insurance.

  • Financial growth opportunities - Employees can become shareholders in Ledger as well as other financial benefits depending on your country of work.

  • Commuter allowance - Ledger offers a commuter allowance to contribute to your preferred means of transportation.

  • Learning & Development - A comprehensive suite of training solutions providing a personalised learning experience for every employee.

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.

Posted 2025-11-03

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