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I am a senior test analyst with 10+ years of hands-on experience in mobile, back end, web, and API testing in Agile Scrum environments. I take ownership of testing within Scrum teams, plan and execute comprehensive test strategies, and drive defect management and reporting to ensure release quality. I specialize in native mobile app testing, API and third-party integration testing, regression and exploratory testing, and root cause analysis. I work with both manual and automated testing approaches and have experience testing payments and financial products.…I am a senior test analyst with 10+ years of hands-on experience in mobile, back end, web, and API testing in Agile Scrum environments. I take ownership of testing within Scrum teams, plan and execute comprehensive test strategies, and drive defect management and reporting to ensure release quality. I specialize in native mobile app testing, API and third-party integration testing, regression and exploratory testing, and root cause analysis. I work with both manual and automated testing approaches and have experience testing payments and financial products.

Jin Yu Mao

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I am a senior test analyst with 10+ years of hands-on experience in mobile, back end, web, and API testing in Agile Scrum environments. I take ownership of testing within Scrum teams, plan and execute comprehensive test strategies, and drive defect management and reporting to ensure release quality. I specialize in native mobile app testing, API and third-party integration testing, regression and exploratory testing, and root cause analysis. I work with both manual and automated testing approaches and have experience testing payments and financial products.…I am a senior test analyst with 10+ years of hands-on experience in mobile, back end, web, and API testing in Agile Scrum environments. I take ownership of testing within Scrum teams, plan and execute comprehensive test strategies, and drive defect management and reporting to ensure release quality. I specialize in native mobile app testing, API and third-party integration testing, regression and exploratory testing, and root cause analysis. I work with both manual and automated testing approaches and have experience testing payments and financial products.

Available to hire

I am a senior test analyst with 10+ years of hands-on experience in mobile, back end, web, and API testing in Agile Scrum environments. I take ownership of testing within Scrum teams, plan and execute comprehensive test strategies, and drive defect management and reporting to ensure release quality. I specialize in native mobile app testing, API and third-party integration testing, regression and exploratory testing, and root cause analysis. I work with both manual and automated testing approaches and have experience testing payments and financial products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Senior QA Engineer at Binance Card

September 1, 2025 - December 1, 2025

Owned end-to-end QA for Binance Card onboarding, application, approval, and activation journeys in a compliance-sensitive financial services environment. Planned and executed functional, regression, and end-to-end testing for critical customer-facing flows. Performed API and back end validation to verify data consistency and system behavior across card platforms, payment services, and third-party integrations. Supported defect validation and issue analysis with developers.

Game Backend Developer (Internship) at LightSpeed Studios (Tencent)

May 1, 2025 - August 1, 2025

Cleaned and preprocessed large-scale production data for an AI-driven coaching system, preparing datasets for model training. Set up Grafana dashboards and alerting rules to monitor key production metrics and data quality. Designed and implemented an RPC-based automated testing framework to support backend performance testing.

Senior QA Engineer at Baidu Network Technology Co. Ltd.

September 1, 2020 - July 1, 2024

Led end-to-end QA activities for the Baidu Lite App across Android and iOS, covering test planning, test execution, regression validation, and release. Took ownership of testing deliverables within Agile teams, working closely with developers and product owner to clarify requirements, identify risks early. Designed and executed manual and automated tests for new features, framework changes, and regression cycles, balancing exploratory, functional, and automated testing. Tested app quality across different scenarios, covering compatibility, stability, performance, and release readiness. Built automation and white-box testing solutions to improve coverage for complex and abnormal scenarios. Configured performance monitoring metrics and tracked app performance after releases. Provided technical guidance and test review support to junior QA engineers and contributed to better team-wide testing practices. Recognised with the “Best Newcomer” and “Testing Expert” awards for strong con

Senior QA Engineer at Beijing Funshion Technology Co.Ltd.

March 1, 2013 - September 1, 2020

Managed QA for back end services supporting video platforms. Designed and implemented API testing strategies covering 900+ endpoints, including functional, regression, and integration testing. Planned and executed integration testing across dependent systems and services, collaborating with developers and cross-functional stakeholders to resolve issues efficiently. Led defect validation, defect tracking, and triage activities, helping teams identify root causes and improve delivery quality over time. Acted as Scrum Master and Test Lead, facilitating sprint planning, daily stand-ups, and retrospectives to support smooth Agile delivery. Mentored team members and helped establish more consistent testing standards, processes, and quality practices across projects.