Sr Software Test Engineer
Location: San Diego, California
Country: United States
Category: QA/Automation
Workplace Location: Onsite
Employment Type: Contract
Posted Date: June 12, 2026
Job ID: 648565
Job Description
Job Title: Sr Software Test Engineer
Location: Hybrid; San Diego, CA
Contract length: 6 months
Schedule: Fulltime, M-F
Pay: $52.00/hr to $64.75/hr, DOE
Job Overview:
This position will require the candidate to lead and execute advanced software testing for web applications and instrument systems, with a focus on C# and TypeScript-based solutions. The Senior Engineer will be responsible for designing and implementing automated and manual test strategies, building robust verification frameworks, and ensuring seamless integration into CI/CD pipelines. The successful candidate will demonstrate deep technical expertise in modern software testing practices, a strong sense of ownership, and the ability to influence quality across teams.
Key Responsibilities:
- Develop and maintain automated test frameworks using C# and TypeScript, covering both API and UI testing
- Partner with software developers and domain experts to define test coverage, optimize frameworks, and drive scalable automation solutions
- Own quality metrics for assigned projects, proactively identifying risks and implementing improvements
- Mentor and guide junior engineers in testing methodologies, automation practices, and domain knowledge
- Integrate automated test suites into CI/CD platforms such as GitHub Actions, TeamCity, or Jenkins to ensure continuous quality
- Work collaboratively and effectively in a fast-paced environment, driving alignment across stakeholders
Qualifications:
- 5+ years' in-depth experience working in Software Quality Engineering/Assurance and/or other areas of the SDLC to test web and/or instrument applications, both front and back end
- 5+ years' software development experience in at least one programming or scripting language, such as C#, Java, JavaScript, Typescript
- Solid understanding of the test pyramid and the ability to design effective test suites across unit, component, integration, and end-to-end (E2E) testing
- Strong hands-on experience with API and UI test automation frameworks (e.g., Playwright, Cypress, Selenium, WebdriverIO, REST/GraphQL testing)
- Familiarity with CI/CD pipelines and tools (GitHub Actions, TeamCity, Jenkins)
- Demonstrated experience leading test strategy and mentoring other engineers
- Bachelor's or Master's degree in Computer Science, Bioinformatics, Engineering, or related field
- Strong analytical and problem-solving skills, with attention to detail
Desired Qualifications:
- Experience working with the following automation frameworks/technologies: Mocha, Nunit, WebdriverIO
- Experience in performance testing, usability testing, and security testing
- Be curious, detail-oriented, and analytical, with a proven ability to learn quickly
- Be customer-focused, team-oriented, and motivated, taking ownership of assigned tasks
- Have proven ability to self-manage, as well as manage interdisciplinary relationships
- Have proven verbal and written communication skills
EEO Statement
The staffing industry has seen an increase in people falsely representing themselves as recruiters to gather personal information from job seekers. For your safety, do not provide sensitive data to anyone you have not spoken with thoroughly, never provide banking information during the application process, and always double check the email address of the Recruiter to ensure it’s from an official Planet domain (@theplanetgroup.com or @launchcg.com) - and not a domain with an alternative extension like .net, .org, or .jobs.
The Planet Group and our companies are equal opportunity employers. It is our practice not to discriminate against any employee or applicant based on any criteria, condition or basis protected by laws or regulations in the locations where we do business. All qualified applicants are encouraged to apply. We celebrate diversity and are committed to providing an environment of mutual respect. We believe that diversity, equity, and inclusion enable us to better meet our mission and values while serving our clients across the globe. If you have a disability or handicap and would like us to accommodate you in any reasonable way, please inform your recruiter, or contact us, so that we can discuss the appropriate alternatives available.
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About The Planet Group
The Planet Group is a global professional services firm delivering strategic staffing and advisory solutions. We operate at the intersection of talent and transformation – connecting the right people with the right opportunities in the areas of technology, engineering, accounting & finance, digital marketing, and manufacturing.
As one of the largest staffing companies in the US, we operate with a global reach and a performance-first mindset. We partner with clients to move fast, stay agile, and drive measurable results – building high-impact teams that fuel transformation and growth.