Senior Test Automation Developer
Reference Number: 407677
Posted: 08/11/2026
Job Type: Contract
- Industry: Technology and IT
Our client, a leading organization in the technology sector, is seeking a Senior Test Automation Developer to join their team. As a Senior Test Automation Developer, you will be part of the Quality Assurance department supporting development and testing teams. The ideal candidate will demonstrate strong analytical skills, proactive problem-solving abilities, and excellent communication skills, which will align successfully in the organization.
Job Title: Senior Test Automation Developer
Location:Seattle, WA (Onsite)
Pay Range:
What's the Job?
- Design, develop, and maintain UI automation frameworks using Playwright or Cypress.
- Implement API automation testing using .NET (C#) with NUnit, ensuring robust test coverage.
- Build end-to-end test strategies encompassing UI, API, and data layers.
- Integrate automation into CI/CD pipelines utilizing tools like Azure DevOps, Jenkins, or GitHub Actions.
- Perform content validation through API-based validation and stubbed services, ensuring data integrity and accuracy.
What's Needed?
- Hands-on experience in UI Automation with Playwright or Cypress.
- Proficiency in API automation using .NET (C#) with NUnit.
- Experience in building and maintaining automation frameworks from scratch.
- Strong programming skills in C# and/or JavaScript.
- Experience working with CI/CD pipelines and version control systems like Git.
What's in it for me?
- Opportunity to work on cutting-edge automation projects in a dynamic environment.
- Collaborate with talented professionals committed to innovation and excellence.
- Gain valuable experience in automation frameworks and CI/CD integration.
- Be part of a supportive team that values continuous learning and development.
- Enjoy a stable work environment with immediate start availability.
Upon completion of waiting period consultants are eligible for:
- Medical and Prescription Drug Plans
- Dental Plan
- Vision Plan
- Health Savings Account
- Health Flexible Spending Account
- Dependent Care Flexible Spending Account
- Supplemental Life Insurance
- Short Term and Long Term Disability Insurance
- Business Travel Insurance
- 401(k), Plus Match
- Weekly Pay
If this is a role that interests you and you'd like to learn more, click apply now and a recruiter will be in touch with you to discuss this great opportunity. We look forward to speaking with you!
About ManpowerGroup, Parent Company of: Manpower, Experis and Talent Solutions.
Experis® is a global leader in technology services and part of the ManpowerGroup® (NYSE: MAN) family of brands. We connect skilled technology professionals with meaningful opportunities where they can grow their careers, expand their expertise and make a real impact. Guided by the belief that it takes Human Ingenuity to unlock the true potential of technology, Experis helps people gain experience with leading organizations, build sought-after skills and take the next step toward a brighter future. Backed by ManpowerGroup's 75+ years of workforce expertise and global reach across more than 70 countries and territories, Experis brings the scale, insight and opportunity to help people and businesses thrive. ManpowerGroup is consistently recognized for its commitment to inclusion, ethics and responsible business, including being named one of the World's Most Ethical Companies. Learn more at Experis.com.
CONSULTANT TESTIMONIAL
An Experis consultant
"Communication, instructions, expectations and follow-through were exceptional, throughout the hiring, interviewing and onboarding process. Thank you, Experis!"

