Senior QA Engineer (Node.js) - (Europe, Remote, m/d/f)

YOUR MISSIONWe are looking for an experienced Senior QA Engineer to elevate the quality, reliability and maintainability of our SaaS ecosystem of NodeJS Microservices and React Web Applications. You'll work on test strategies, guidelines and implementations, and the monitoring thereof. For this you'll contribute your own ideas, process changes and new frameworks to ensure continuous quality improvements to the code base and hence act as a quality guardian across multiple projects and domains.

As a QA engineer, you'll also regularly pair up with others, perform code reviews, identify dark spots, plan out tasks and projects, estimate workloads and provide guidance. You'll be working closely with Engineering Leadership, Product Managers and Engineers of all disciplines to elevate quality and reliability of our applications.

To excel as a Senior QA Engineer at Factor-Eleven, you should be an excellent communicator and mediator, have expert knowledge of Typescript, NodeJS based services and React applications, as well as common testing frameworks and their best practices, a solid understanding of CI/CD processes and SAST/DAST tooling and an everlasting urge to raise the quality bar. This is a high-impact role for someone who thrives on elevating engineering standards, and driving a forward-thinking, AI-first approach across the organization. Any experience with Cypress, Playwright, Jest, SonarQube, DataDog and GraphQL is a plus.

Your ResponsibilitiesEnsure reliability of our high-performance applications by writing testable, reusable, and efficient codeOptimize and expand the existing test suites and CI/CD pipelines Collaborate with product people on the test strategy and automation for continuous acceptance criteria validationWork closely with engineers to write efficient and maintainable e2e, integration and unit tests Perform code reviews with a focus on test coverage, quality and efficiencyIdentify dark spots and create/adjust test strategies to close themSupervise SAST/DAST tooling and set up strict but reasonable rules to ensure quality alignment between projectsHave a great sense for code quality, continuously raising our quality barRequirementsYOUR PROFILE5+ 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 maintainabilityExperience performing code reviews in a friendly, constructive but strict mannerHigh proficiency of NodeJS with TypeScript, preferably using React and NestJS in a GraphQL microservice ecosystemExperience with CI/CD processes, preferably in Gitlab using Docker and/or KubernetesSuperb interpersonal, communication, and collaboration skillsExceptional analytical and problem-solving aptitudeWorking knowledge of SAST/DAST tools such as SonarQube and continuous error tracking solutions, preferably DataDog.

Experience working with AI tools such as Junie/Cursor or equivalent (nice to have)BenefitsWHY US?Factor Eleven's tech department is the inhouse tech scale-up responsible for our SaaS product suite offering localized digital advertising to enterprises of all sizes and shapes. We're powering the engine that Factor Eleven is successfully built upon and elevate the possibilities of our product on a daily basis. We're working together to fulfill our ambitions as a top ad-tech provider by continuously leveling up the quality and expanding capabilities of the entire platform, as well as our engineering and product organization.

Join our amazing team in our mission to move digital localized advertisement forward and enjoy the freedom, camaraderie and perks of our fully remote operations. Our Perks & BenefitsTransparent, above-market salaries100% remote within EuropeFlexible work-hours and part-time modelsBe part of a fast-growing, highly-skilled teamIn person department and company eventsHome office, co-working space and work-together allowancePersonal and professional development courses from UdemyCase by case relocation and visa supportPlease note that you need to be residing in and hold a work permit of a country in the European Union to be considered for this role.