Full Stack Quality Engineer
**Job Title: Senior QA Automation Engineer (Full-Stack Quality Engineer)**
### About the Role
We are seeking a highly skilled **QA Automation Engineer** to join our engineering team. In this role, you will design, develop, and maintain robust automated testing solutions for complex, modern web applications built on microservices architecture. You will bridge development and quality by writing production-grade code for test automation, ensuring high reliability, scalability, and performance across our stack. This is a hands-on, code-heavy position ideal for someone who loves both testing and software engineering.
### Key Responsibilities
- Develop, maintain, and scale end-to-end (E2E), API, integration, and performance test automation frameworks.
- Build and enhance automated test suites using JavaScript/TypeScript test automation libraries.
- Design testing strategies for microservices architectures, including contract testing, service virtualization, and distributed system validation.
- Collaborate closely with backend (Java/Node.js) and frontend (React) developers to implement shift-left testing practices.
- Perform manual exploratory testing when needed and mentor team members on best practices.
- Integrate automated tests into CI/CD pipelines, Git Actions and monitor test execution, flakiness, and coverage.
- Analyze test results, troubleshoot failures, and drive continuous improvement in quality processes.
- Work with databases for test data management and validation.
### Required Qualifications and Skills
- **Strong Programming & Automation Expertise**:
- Proficiency in **JavaScript/TypeScript** and experience with top JavaScript test automation libraries such as **Playwright** (preferred for its reliability and modern features), **Cypress**, or **Selenium/WebDriverIO**.
- Ability to develop clean, maintainable, production-grade automation code (Page Object Model, custom frameworks, etc.).
- **Backend & Languages**:
- Solid understanding of **Java** and functional programming concepts.
- Experience with **Node.js**, **Express**, and related ecosystems.
- **Frontend**:
- Hands-on experience with **React** for component and E2E testing.
- **Databases**:
- Strong experience with **PostgreSQL** (queries, schema validation, data integrity testing).
- Working knowledge of **MongoDB**.
- **API & Tools**:
- Expert-level experience with **Postman** and **Insomnia** for API testing, collection management, and automation.
- Familiarity with REST, GraphQL, and related testing practices.
- **Architecture**:
- Deep familiarity with **microservices architecture**, including challenges like inter-service communication, resilience, and contract testing (e.g., Pact).
- Understanding of Hashicorp tech stack.
### Highly Valued Tools & Technologies (Top Performer Toolkit)
Top-performing QA professionals in 2026 leverage a modern, integrated toolchain. Experience or quick proficiency in the following is a big plus:
- **Test Automation**: Playwright, Cypress, Selenium, WebDriverIO, Appium (for any mobile needs).
- **API & Contract Testing**: Postman, Supertest, Pact, WireMock, REST Assured.
- **Performance & Load**: JMeter, k6.
- **CI/CD & DevOps**: Jenkins, GitHub Actions, GitLab CI, Docker, Kubernetes basics.
- **Test Management & Reporting**: TestRail, Allure, or similar.
- **AI-Powered & Emerging Tools**: Exposure to AI-assisted testing (e.g., self-healing, test generation in tools like Mabl, Katalon, or QA Wolf), visual testing (Applitools), or agentic automation.
- **Other Utilities**: Git, Jira/Linear, BrowserStack or similar cloud testing platforms, Charles/Fiddler for proxy debugging, Lighthouse for performance.
### Ideal Candidate Profile
- 4+ years of experience in QA automation, with a strong emphasis on coding and framework development.
- Bachelor's degree in Computer Science, Engineering, or equivalent experience.
- Excellent problem-solving, critical thinking, and communication skills.
- Passion for quality, reliability, and staying current with industry trends (AI in testing, shift-left, observability).
GCS is acting as an Employment Business in relation to this vacancy.
Full Stack Quality Engineer
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