Senior SDET (Software Development Engineer in Test) - JS/TypeScript/Playwright

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

• 5+ years of experience in JavaScript/TypeScript test automation
• Hands-on expertise in Playwright
• Proficiency in test case development, including mocking and stubbing tools
• Solid understanding of API and web service testing, including mocking and contract validation using modern tools
• Skills in integrating automated tests into CI/CD pipelines and maintaining traceability in test management tools
• Competency in Agile methodologies and effective cross-team communication
• Excellent command of written and spoken English (B2+ level)

Nice to have:

• Familiarity with performance and functional testing, including tools such as Grafana k6 and analysis dashboards (e.g., Grafana, Xray plug-in for Jira)
• Background in containerization and service isolation using Docker, WireMock, and AWS (LocalStack)
• Experience with contract testing tools
• Knowledge of Node.js
• Experience with AI-assisted development tools such as GitHub Copilot

• Collaborate with test managers and product owners to understand test plans and approaches for new and existing software features
• Analyze requirements, acceptance criteria, and technical documentation to create clear, concise, and comprehensive test scenarios and scripts
• Design, develop, and execute automated tests covering both functional and non-functional aspects of the software
• Implement comprehensive API testing strategies to validate endpoints for correctness, security, reliability, and performance
• Build and maintain component-level test suites with appropriate mocks and contracts, ensuring modules function correctly in isolation and as part of the system
• Plan, execute, and analyze performance and load tests to assess system scalability, responsiveness, and stability under various conditions
• Identify, document, and report defects with detailed reproduction steps, logs, and supporting evidence
• Work closely with developers, DevOps, and other engineering teams to anticipate and test upcoming changes
• Create and maintain automated test scripts and frameworks, focusing on efficiency, coverage, and repeatability, and integrate them into CI/CD pipelines with quality gates
• Design, implement, and maintain Playwright-based test suites to verify software requirements and end-to-end user workflows
• Automate API tests traced to Swagger endpoints and requirements, maintaining mocks/stubs using tools such as Playwright, Supertest, WireMock, Bruno, and Pact
• Author performance scripts in k6, run smoke tests on nightly builds, execute full load/stress tests on each iteration, analyze bottlenecks using dashboards (e.g., Grafana, Xray), and provide remediation recommendations
• Leverage approved AI-assisted technologies (e.g., GitHub Copilot within VS Code) to accelerate test case and script creation, verifying and refining AI-generated code for correctness, security, and compliance before CI/CD integration
• Maintain organized and traceable test artifacts in tools such as Xray, Jira, Confluence, and Git, ensuring all tests are linked to requirements and acceptance criteria
• Participate actively in Agile ceremonies, including daily stand-ups, sprint planning, retrospectives, and backlog grooming

This is a fully remote position requiring work from 13:00 to 21:00 Polish time to collaborate with the client team located in the same time zone.