Factor Eleven is looking for a Senior QA Engineer to be the guardian of quality for our SaaS ecosystem. You will play a critical role in elevating the reliability and maintainability of our Node.js microservices and React web applications, working across multiple projects to implement robust test strategies.
What You'll Do
- Ensure the reliability of high-performance applications by writing testable, reusable, and efficient code.
- Optimize and expand existing test suites and CI/CD pipelines.
- Collaborate with product teams on test strategy and automation for continuous validation of acceptance criteria.
- Work closely with engineers to write efficient and maintainable e2e, integration, and unit tests.
- Perform code reviews with a focus on test coverage, quality, and efficiency.
- Identify dark spots and create or adjust test strategies to close them.
- Supervise SAST/DAST tooling and set up strict but reasonable rules to ensure quality alignment between projects.
- Continuously raise the quality bar.
What We're Looking For
- 5+ years of professional experience in software automation.
- Expert knowledge in writing tests with Cypress, Playwright, Jest, or Vitest.
- Ability to write efficient, reliable tests with an eye towards impact and maintainability.
- Experience performing code reviews in a friendly, constructive but strict manner.
- High proficiency with Node.js and TypeScript, preferably using React and NestJS in a GraphQL microservice ecosystem.
- Experience with CI/CD processes, preferably in Gitlab using Docker and/or Kubernetes.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Working knowledge of SAST/DAST tools such as SonarQube and continuous error tracking solutions, preferably DataDog.
- Must reside in and hold a work permit for a country in the European Union.
Nice to Have
- Experience with AI tools such as Junie/Cursor or equivalent.
Technical Stack
- Languages: Node.js, TypeScript
- Frameworks: React, NestJS, GraphQL
- Testing: Cypress, Playwright, Jest, Vitest
- Infrastructure & Tools: Gitlab, Docker, Kubernetes, SonarQube, DataDog
Team & Environment
You will work closely with Engineering Leadership, Product Managers, and Engineers of all disciplines as part of a fast-growing, highly-skilled team focused on advancing digital localized advertising.
Benefits & Compensation
- Transparent, above-market salaries.
- 100% remote within Europe.
- Flexible work-hours and part-time models.
- In person department and company events.
- Home office, co-working space and work-together allowance.
- Personal and professional development courses from Udemy.
- Case by case relocation and visa support.
Work Mode
This is a fully remote position for candidates located within Europe. We operate with a high degree of flexibility and camaraderie in our distributed setup.



