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Senior QA Engineer (Node.js) - (Europe, Remote) at Jobgether. This position is posted by Jobgether on behalf of . Factor Eleven. . We are currently looking for a . Senior QA Engineer (Node.js). in . Europe. .. In this high-impact role, you’ll help elevate the quality, reliability, and maintainability of a complex SaaS ecosystem built on Node.js microservices and React applications. Working closely with engineering, product, and leadership teams, you’ll define testing strategies, expand automation coverage, and act as a guardian of quality across multiple domains. This position is perfect for someone who thrives in a fast-paced, fully remote environment and who is eager to champion best practices, modern tools, and continuous improvement. You’ll play a pivotal role in shaping how QA is done across the platform.. . Accountabilities:. . Develop and maintain automated test strategies, frameworks, and guidelines across projects.. . Write efficient, reusable, and testable code to support high-performance applications.. . Expand and optimize end-to-end, integration, and unit testing suites using Cypress, Playwright, and Jest.. . Collaborate with engineers and product teams to continuously validate acceptance criteria.. . Perform code reviews with a focus on quality, test coverage, and maintainability.. . Identify testing blind spots and develop strategies to address them effectively.. . Monitor and maintain SAST/DAST tooling, ensuring alignment with quality goals.. . Champion continuous improvements in QA processes and engineering standards across the organization.. . Provide mentorship and technical guidance to peers within cross-functional teams.. . . 5+ years of hands-on experience in software QA automation, ideally in a SaaS or microservice environment.. . Expertise with test frameworks such as Cypress, Playwright, Jest, or Vitest.. . Strong proficiency in Node.js and TypeScript; experience with React, NestJS, and GraphQL is a plus.. . Proficient in CI/CD pipelines, preferably using GitLab, Docker, and/or Kubernetes.. . Familiarity with SAST/DAST tools like SonarQube and error monitoring solutions such as DataDog.. . Skilled in performing constructive and insightful code reviews.. . Excellent communication, collaboration, and analytical skills.. . Experience using AI tools (e.g., Junie, Cursor) is a nice-to-have.. . Must reside in and hold a valid work permit for an EU country.. Company Location: Germany.