Senior Software Test Engineer

job summary:
This position requires 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.

 
location: San Diego, California
job type: Contract
salary: $59 - 64 per hour
work hours: 8am to 5pm
education: Bachelors

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, or 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 a related field.

Strong analytical and problem-solving skills, with sharp attention to detail.

Experience working with automation frameworks/technologies such as Mocha, NUnit, and WebdriverIO.

Experience in performance, usability, and security testing.

Curious, detail-oriented, and analytical, with a proven ability to learn quickly.

Customer-focused, team-oriented, self-motivated, and eager to take ownership of assigned tasks.

Proven ability to self-manage and effectively navigate interdisciplinary relationships.

Excellent verbal and written communication skills.

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact View email address on randstadusa.com.


Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.

Qualified applicants in San Francisco with criminal histories will be considered for employment in accordance with the San Francisco Fair Chance Ordinance.


Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.


We will consider for employment all qualified Applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance.