Senior QA Automation Engineer

Salary: $105,000 - 145,000 per year Requirements:

• Hands-on experience developing and maintaining UI automation with Playwright or Cypress, including writing reliable tests, troubleshooting failures, and creating maintainable automation.
• Experience building REST API automation with .NET/C# and NUnit, including validating status codes and response content and debugging API failures.
• Proven ability to design and build automation frameworks from scratch, with reusable components, organized tests, configuration management, reporting, and maintainable architecture.
• Strong practical programming skills in C# and/or JavaScript, including sufficient C# proficiency for .NET/NUnit API automation.
• Experience designing test strategies across UI, API, and data layers, choosing appropriate validation methods, and managing cross-layer dependencies.
• Experience with API-based content validation, mocked UI behavior, and stubbed services to validate functionality or isolate dependencies.
• Experience integrating automated tests into Azure DevOps, Jenkins, or GitHub Actions, including dotnet test execution, NUnit/TRX reporting, environment configuration, and parallel execution.
• Working knowledge of Git branching, pull requests, and code reviews, with the ability to collaborate on automation development.
• Practical experience using AI tools to support test development, script stability, debugging, and analysis, while independently validating results.
• Ability to contribute in Agile/Scrum teams, coordinate testing with development, and maintain automation as application functionality changes.
• Availability for the immediate start, onsite work in Seattle, Washington, four days per week, and completion of the mandatory background check.
• Must be authorized to work in the United States for any employer on a permanent basis without current or future visa sponsorship; visa sponsorship or transfer is not available.

• Design, build, implement, and maintain automated testing solutions for user interfaces, REST APIs, and supporting data layers.
• Develop reliable, maintainable automation frameworks from the ground up to expand test coverage, identify defects sooner, and support consistent software delivery.
• Use Playwright or Cypress for UI automation and .NET/C# with NUnit for API automation, applying suitable validation techniques across application layers.
• Integrate automated tests into CI/CD pipelines, configure dotnet test execution, implement NUnit/TRX reporting, and support environment-specific configuration and parallel runs.
• Maintain automated test code using disciplined Git branching, pull requests, and code reviews.
• Work with Agile/Scrum teams and use approved AI tools to accelerate test development, improve script stability, and assist with debugging and analysis.

• AI
• API
• Azure
• C#
• CI/CD
• Cypress
• DevOps
• Git
• GitHub
• Support
• JavaScript
• Jenkins
• Playwright
• REST
• UX UI Design
• ASP.NET
• Cloud

More:

We are seeking a Senior Test Automation Engineer for a contract-to-hire role based in Seattle, Washington. The position is onsite four days a week, with Fridays remote, and is available for an immediate start. In this hands-on engineering role, you will have meaningful technical ownership and visible delivery outcomes while helping development teams deliver dependable software. The work brings together Playwright or Cypress, C#/NUnit, CI/CD, and AI-assisted testing to strengthen confidence in application functionality, API behavior, and content accuracy. A mandatory background check is required.

last updated 42 week of 2026