Zigsaw
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Senior QA Engineer
Location
California
Posted
16 days ago
Salary
$109.2K - $224.9K / year
Bachelor DegreeEnglishCypressJava ScriptReactType Script
Job Description
• 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.
Job 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
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