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West500 Partners

Software Engineer in Test

Hybrid

Seattle, United states

Senior

Full Time

08-12-2025

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Skills

Java C# TypeScript CI/CD Test Selenium Test Automation Software Development api testing Postman Agile CI/CD Pipelines

Job Specifications

Senior Software Development Engineer in Test (SDET)

Hybrid (3 days a week onsite in Kent, WA)

We have an amazing opportunity for an established SDET to join a well-funded and well-positioned startup to contribute to the growth of a successful B2B SaaS product. In this greenfield development environment you will be responsible for building and maintaining automated test frameworks, integrating tests into CI/CD pipelines, and collaborating closely with developers, product managers, and UX teams to drive seamless releases.

This is a high-impact role with a lot of ownership in a rapidly growing startup environment.

What You'll Do:

Develop, automate, and execute end-to-end tests to validate real-world user workflows
Build, scale, and maintain test automation frameworks using Playwright, Cypress, or Selenium
Review pull requests (PRs), understand code changes, and ensure adequate test coverage
Integrate automated tests into CI/CD pipelines to enable rapid, high-quality releases
Perform API testing to verify data flows between frontend, backend, and external systems
Collaborate closely with engineers, product managers, and UX teams to improve test efficiency
Monitor and refine automated test strategies to support frequent deployments and maintain system stability

What You Bring:

8+ years SDET experience
Strong experience in end-to-end testing for B2B SaaS applications
Proficiency in TypeScript, C#, or Java and experience writing test automation
Hands-on experience with modern UI Automation frameworks( Playwright, Cypress, or Selenium)
Bachelor's in Computer Science
Experience with API testing (Postman, REST Assured, SuperTest)
Strong understanding of test automation best practices, including Page Object Models (POM) and reusable test components
Ability to work in a fast-paced, agile environment, ensuring efficient test execution and quick releases

Apply with West500 Partners and we can discuss this opportunity further!

Unfortunately, we are unable to sponsor at this time. U.S. Citizens and those authorized to work in the U.S. are encouraged to apply

About the Company

West500 Partners has been serving emerging startups to Enterprise companies since 2007, delivering consistent results for clients throughout the United States. Elevating companies and careers is what drives us each day! Need help finding the right candidate for a niche technical role? Let us build your growing team with the right talent. Who we place: Software Engineers (Backend, Frontend, Full Stack, QA + Test, Mobile, DevOps, Data, SDMs, etc.), UI/UX, Customer Support, Solutions Engineers, PMs, and so much more. Industry s... Know more