Senior Software Development Engineer in Test(SDET)
Senior Software Development Engineer in Test(SDET)

Senior Software Development Engineer in Test(SDET)

England Full-Time 48000 - 72000 £ / year (est.) No home office possible
Z

At a Glance

  • Tasks: Develop and automate tests for a cutting-edge B2B SaaS product.
  • Company: Join a well-funded aerospace startup in the Seattle area.
  • Benefits: Enjoy a hybrid work model with flexible onsite days.
  • Why this job: Be part of a high-impact role in a rapidly growing environment.
  • Qualifications: 8 years SDET experience and proficiency in TypeScript, C#, or Java required.
  • Other info: No sponsorship available; U.S. work authorization needed.

The predicted salary is between 48000 - 72000 £ per year.

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

We have an amazing opportunity to join a very well-funded and well-positioned Seattle area aerospace startup as their second SDET contributing 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 and automate end-to-end tests to validate real-world user workflows
  • Build 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
  • Excellent communication skills—able to collaborate with engineers and product teams effectively

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

Senior Software Development Engineer in Test(SDET) employer: ZipRecruiter

Join a dynamic aerospace startup in Kent, WA, where innovation meets opportunity. As a Senior Software Development Engineer in Test (SDET), you'll thrive in a collaborative and fast-paced environment that values your expertise and offers significant ownership of projects. With a strong focus on employee growth, competitive benefits, and a hybrid work model, this role not only promises meaningful contributions to a cutting-edge B2B SaaS product but also fosters a culture of continuous learning and development.
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Contact Detail:

ZipRecruiter Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Development Engineer in Test(SDET)

✨Tip Number 1

Familiarise yourself with the specific tools mentioned in the job description, like Playwright, Cypress, and Selenium. Having hands-on experience with these frameworks will not only boost your confidence but also demonstrate your readiness to hit the ground running.

✨Tip Number 2

Showcase your collaborative skills by preparing examples of how you've worked closely with developers and product managers in previous roles. This will highlight your ability to thrive in a team-oriented environment, which is crucial for this position.

✨Tip Number 3

Brush up on your API testing knowledge, especially with tools like Postman and REST Assured. Being able to discuss your experience with API testing during interviews will set you apart as a candidate who understands the full scope of testing in a B2B SaaS context.

✨Tip Number 4

Prepare to discuss your approach to maintaining test automation frameworks and your strategies for integrating tests into CI/CD pipelines. This will show that you not only have the technical skills but also the strategic mindset needed for a high-impact role in a startup.

We think you need these skills to ace Senior Software Development Engineer in Test(SDET)

End-to-End Testing
Test Automation Frameworks
CI/CD Integration
API Testing
Proficiency in TypeScript
Proficiency in C#
Proficiency in Java
Experience with Playwright
Experience with Cypress
Experience with Selenium
Understanding of Page Object Models (POM)
Reusable Test Components
Agile Methodologies
Collaboration Skills
Excellent Communication Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your 8 years of SDET experience and showcases your proficiency in TypeScript, C#, or Java. Include specific examples of your work with end-to-end testing for B2B SaaS applications.

Craft a Compelling Cover Letter: Write a cover letter that explains why you're excited about the opportunity at this aerospace startup. Mention your experience with automated test frameworks like Playwright, Cypress, or Selenium, and how you can contribute to their CI/CD pipelines.

Showcase Relevant Projects: If possible, include links to projects or repositories where you've implemented automated testing strategies. This could be a great way to demonstrate your hands-on experience and understanding of test automation best practices.

Highlight Collaboration Skills: In your application, emphasise your excellent communication skills and ability to collaborate with engineers, product managers, and UX teams. Provide examples of how you've worked in agile environments to ensure efficient test execution and quick releases.

How to prepare for a job interview at ZipRecruiter

✨Showcase Your Technical Skills

Be prepared to discuss your experience with test automation frameworks like Playwright, Cypress, or Selenium. Bring examples of how you've built and maintained automated test frameworks in previous roles, as this will demonstrate your hands-on expertise.

✨Understand the B2B SaaS Landscape

Familiarise yourself with the specific challenges and requirements of B2B SaaS applications. Be ready to discuss how your testing strategies can enhance user workflows and ensure high-quality releases in a fast-paced environment.

✨Emphasise Collaboration Skills

Since the role involves working closely with developers, product managers, and UX teams, highlight your communication skills and any past experiences where you successfully collaborated across different teams to improve test efficiency.

✨Prepare for Scenario-Based Questions

Expect questions that assess your problem-solving abilities in real-world scenarios. Think about how you would approach integrating automated tests into CI/CD pipelines or handling API testing, and be ready to explain your thought process.

Senior Software Development Engineer in Test(SDET)
ZipRecruiter
Z
  • Senior Software Development Engineer in Test(SDET)

    England
    Full-Time
    48000 - 72000 £ / year (est.)

    Application deadline: 2027-03-29

  • Z

    ZipRecruiter

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