Senior SDET at Ledger

Paris, Île-de-France, France

Ledger Logo
Not SpecifiedCompensation
Senior (5 to 8 years)Experience Level
Full TimeJob Type
UnknownVisa
Cryptocurrency, Web3, FinTech, BlockchainIndustries

Requirements

  • Hands-on experience in developing test automation solutions using Typescript (Python is optional)
  • Proficiency using QA Automation Frameworks: 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
  • Able to work effectively across multiple teams, build strong technical relationships, and operate in a highly collaborative environment
  • Curious, pragmatic, and innovative — you stay current with industry trends, challenge assumptions, and identify opportunities to improve quality and engineering efficiency
  • Strong communication and influence skills in spoken and written English, capable of explaining risks, trade-offs, and technical constraints clearly to both engineers and non-engineers
  • Broad technical awareness across different codebases, platforms, and testing approaches, with the ability to quickly understand new areas and guide teams toward better quality practices
  • Solid understanding of Bash/shell scripting and comfortable working with Kubernetes-based infrastructure (logs, pods, CI environments, debugging test environments, etc.)

Responsibilities

  • Designing and improving tools, workflows, and processes that strengthen quality across the SDLC
  • Performing manual testing when automation is not practical or when deep exploratory validation is required
  • Build new and maintain existing workflows for CI/CD pipelines
  • Maintaining automation frameworks and test tooling (primarily TypeScript; Python appreciated but optional)
  • Improving test coverage and helping teams integrate automated testing into their development routines
  • Integrating automated testing into Quality Assurance practices
  • Running workshops, coaching sessions, and pair-testing/pair-programming to raise automation maturity across teams
  • Communicating with product squads about the improvements following the strategy, sharing of experiences, best practices and lessons learnt

Skills

Key technologies and capabilities for this role

SDETQA AutomationTest AutomationManual TestingSDLCQuality AssuranceAutomation Tools

Questions & Answers

Common questions about this position

What is the work arrangement for this Senior SDET role?

The position is hybrid.

What salary or compensation is offered for this position?

This information is not specified in the job description.

What key skills are required for this Senior SDET role?

Hands-on experience in developing test automation using TypeScript (Python optional), proficiency with QA Automation Frameworks like Playwright, Detox or Selenium, and good knowledge of development processes, design patterns, and programming principles are required. Proficiency in front-end and back-end testing tools and approaches is also needed.

What is the company culture like at Ledger?

Ledger has a culture of problem-solving where every employee is empowered and supported to challenge tradition and create solutions, with a team united by innovation and a common goal to unlock freedom through digital ownership.

What experience makes a strong candidate for this Senior SDET position?

Candidates with hands-on test automation experience in TypeScript, proficiency in frameworks like Playwright or Detox, and prior experience designing workflows stand out.

Ledger

Digital asset security and management solutions

About Ledger

Ledger specializes in the security and management of digital assets and Web3 technologies. The company offers a range of hardware wallets, including the Ledger Stax, Nano S Plus, and Nano X, which allow users to securely store and manage their cryptocurrencies. These wallets work by keeping private keys offline, ensuring that users have full control over their digital assets while protecting them from online threats. Ledger differentiates itself from competitors by securing 20% of the world's crypto assets and serving over 100 financial institutions, making it a trusted name in the industry. The company's goal is to empower individuals and institutions to achieve financial freedom by providing secure and user-friendly solutions for buying, storing, and managing crypto assets.

Paris, FranceHeadquarters
2014Year Founded
$568.4MTotal Funding
SERIES_CCompany Stage
Cybersecurity, Crypto & Web3, Financial ServicesIndustries
501-1,000Employees

Benefits

Health Insurance
Dental Insurance
Vision Insurance
Stock Options
Paid Vacation
Hybrid Work Options
Wellness Program
Company Social Events
Commuter Benefits

Risks

MoonPay and PayPal partnership increases competition in crypto purchases.
High price of Ledger Flex may hinder consumer adoption.
Third-party integrations like THORChain could introduce security vulnerabilities.

Differentiation

Ledger's proprietary technology secures 20% of global crypto assets.
Ledger's hardware wallets feature unique E Ink screens for NFT display.
Ledger Enterprise offers a comprehensive digital asset custody solution for institutions.

Upsides

Ledger's collaboration with MoonPay simplifies crypto purchases for users.
The Ledger Flex wallet appeals to tech-savvy consumers with advanced features.
Ledger's 'Proof of You' initiative integrates AI with blockchain security.

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