
Senior QA Engineer
Zigsaw
full-time
Posted on:
Location Type: Remote
Location: California • United States
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Salary
💰 $109,242 - $224,910 per year
Job Level
Tech Stack
About the role
- Own and drive quality for web platform features, spanning UI, APIs, and backend services
- Design and execute manual test cases and exploratory testing for complex web and API workflows
- Conduct thorough regression testing when bugs are resolved.
- Build and maintain automated test suites for:
- Validate frontend–backend integration, data consistency, and error handling
- Perform API contract testing, schema validation, and negative/edge-case testing
- Collaborate with engineers during design, implementation, and code reviews to improve testability and catch issues early
- Integrate automated tests into CI/CD pipelines to provide fast, reliable feedback
- Analyze test failures, investigate root causes, and drive issues to resolution
- Advocate for quality best practices, including shift-left testing, risk-based testing, and automation strategy
- Identify, document, and track software defects using bug tracking tools like Jira.
Requirements
- Experience in QA / Quality Engineering, with a strong focus on web platforms and APIs
- Proven hands-on experience with manual testing of complex, consumer-facing web applications
- Strong experience building and maintaining API tests using tools such as Postman, REST-assured, Supertest, or similar
- Hands-on experience with web automation frameworks (Playwright, Cypress)
- Solid understanding of HTTP, REST and API design principles
- Proficiency in at least one programming or scripting language (JavaScript, TypeScript)
- Experience working in Agile/Scrum environments
- Strong debugging, analytical, and communication skills
- Strategic partnership with stakeholders / Cross-functional collaboration that is high-trust and high-velocity
- Nice-to-Haves:
- Experience testing large-scale, high-traffic web platforms
- Familiarity with React or modern frontend frameworks
- Experience with performance, load, or reliability testing for APIs and web applications
- Exposure to feature flags, experimentation platforms, or observability tools
Benefits
- Health insurance
- 401(k) matching
- Flexible work hours
- Paid time off
- Remote work options
Applicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
manual testingautomated testingAPI testingregression testingfrontend-backend integrationschema validationnegative testingweb automation frameworksprogramming languagesperformance testing
Soft Skills
analytical skillscommunication skillscollaborationdebuggingproblem-solvingadvocacy for qualitystakeholder partnershipcross-functional collaboration