QA Engineer

Location: Seattle, Washington(RTO5)
Experience: 2+YOE

We’re hiring a QA professional to help improve the product quality and user experience of an international e-commerce platform. This role covers both mobile and web testing, with a stronger focus on mobile client experience and UI/UX quality, while also supporting backend API validation and cross-team issue resolution. You’ll work with domestic and international stakeholders to analyze user feedback, reproduce issues, identify root causes, and drive fixes to completion.

• Ticket & bad-case analysis: Review international e-commerce feedback tickets and “bad cases,” perform classification/tagging, analyze trends, and summarize common and representative issues.

• UI/UX-focused testing (mobile & web): Validate end-to-end user flows and product experience, identify usability and interaction issues, and provide actionable reproduction steps and evidence (screenshots/video/logs).

• Issue reproduction & deep-dive: Follow up on product experience issues, reproduce them reliably, collaborate with business/product/engineering teams to understand business logic, and help drive resolution.

• Backend/API testing support: Validate backend behavior through API testing (request/response checks, edge cases, error handling) and cross-verify with client-side experience.

• Cross-functional coordination: Work efficiently with both domestic and international teams to accelerate issue triage, root-cause analysis, and solution rollout.

• Performance testing: Maintain and execute performance test cases for consumer and merchant platforms (mobile/web), analyze results, produce reports, and propose optimization suggestions.

• Bachelor’s degree or above in Computer Science, Software Engineering, or a related field (or equivalent practical experience).

• English/Chinese bilingual ability, including reading and writing for cross-team collaboration with China-based teams and for documentation.

• Experience or strong foundation in QA/testing for consumer-facing products; strong ability in problem discovery, triage, reproduction, and communication.

• Strong attention to detail and a product mindset; able to proactively identify product improvement opportunities.

• Strong coordination and collaboration skills across functions and time zones.

• E-commerce QA/testing experience (payments, orders, checkout, promotions, merchant tooling, etc.).

• Mobile testing experience (iOS/Android), especially around UI/UX quality and complex user flows.

• Familiarity with web automation tools such as Selenium or Playwright.

• Familiarity with mobile automation tools such as Appium.

• Basic scripting/coding ability in Python to write or maintain testing scripts/tools.

• Experience with API testing tools/workflows (e.g., Postman or equivalent), plus understanding of HTTP, JSON, status codes, and error handling.

• Experience producing QA reports (defect summaries, trend analysis, performance findings) with clear recommendations.

We are an equal opportunity employer and consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, veteran status, age, or any other protected characteristic under applicable law.