YOUR MISSION We are seeking an experienced Senior QA Engineer to improve the quality, reliability, and maintainability of our SaaS ecosystem comprising NodeJS Microservices and React Web Applications. You will develop test strategies, guidelines, and implementations, and monitor their effectiveness. Contributing your ideas, process improvements, and new frameworks, you will ensure continuous quality enhancements across multiple projects. As a QA engineer, you will collaborate with team members, perform code reviews, identify vulnerabilities, plan tasks and projects, estimate workloads, and provide guidance. You will work closely with Engineering Leadership, Product Managers, and Engineers from various disciplines to enhance our applications' quality and reliability. To succeed as a Senior QA Engineer at Factor-Eleven, you should be an excellent communicator and mediator, possess expert knowledge of TypeScript, NodeJS-based services, and React applications, along with familiarity with testing frameworks and best practices. A solid understanding of CI/CD processes, SAST/DAST tooling, and a strong desire to improve quality standards are essential. This role is impactful for someone passionate about elevating engineering standards and promoting a forward-thinking, AI-first approach. Experience with Cypress, Playwright, Jest, SonarQube, DataDog, and GraphQL is advantageous. Your Responsibilities Ensure the reliability of high-performance applications by writing testable, reusable, and efficient code. Expand and optimize existing test suites and CI/CD pipelines. Collaborate on test strategies and automation with product teams for continuous acceptance criteria validation. Work with engineers to develop efficient and maintainable end-to-end, integration, and unit tests. Conduct code reviews focusing on test coverage, quality, and efficiency. Identify vulnerabilities and adapt test strategies accordingly. Manage SAST/DAST tools, establishing appropriate rules to ensure quality consistency across projects. Maintain a keen eye for code quality, continuously raising our standards. YOUR PROFILE 5 years of professional experience in software automation. High proficiency in NodeJS with TypeScript. Expertise in writing tests with Playwright, Cypress, Jest, or Vitest. Experience in creating test strategies and proof of concepts. Familiarity with AWS cloud services. Knowledge of SAST/DAST tools like SonarQube and error tracking solutions such as DataDog. Ability to write efficient, reliable, and maintainable tests. Experience conducting constructive code reviews. Excellent interpersonal, communication, and collaboration skills. Strong analytical and problem-solving skills. Optional: React and NestJS expertise in a GraphQL microservice environment. Optional: Experience with CI/CD tools such as GitLab, Docker, or Kubernetes. Optional: Experience with AI tools like Junie or Cursor. WHY US? Factor Eleven's tech team is an in-house scale-up dedicated to our SaaS product suite, providing localized digital advertising solutions. We aim to push the boundaries of our platform and enhance our engineering and product teams. Join us in our mission to advance digital localized advertising, with the flexibility, camaraderie, and perks of remote work. Our Perks & Benefits Competitive, above-market salaries 100% remote within Europe Flexible working hours and part-time options Join a fast-growing, skilled team In-person team and company events Home office, co-working space, and work-together allowance Access to professional development courses via Udemy Relocation and visa support on a case-by-case basis Please note: Applicants must reside in and hold a work permit for an EU country. Seniority level Mid-Senior level Employment type Full-time Job function Information Technology Industries IT Services and IT Consulting J-18808-Ljbffr