QA Engineer | Web, Mobile, API Testing

- Executed functional, integration, regression, and smoke test plans in QASE test management system, authoring 300+ end-to-end test cases. Conducted tests both on Android and iOS.- Reduced average bug resolution time by analyzing network traffic with Fiddler/Charles, using DevTools, and monitoring logs with AWS CloudWatch.- Managed projects' Jira board, achieving 15% faster issue resolution.- Identified and resolved 90% of critical defects through API testing using Postman and SoapUI.- Improved application performance by designing and conducting load testing using JMeter and Postman, identifying bottlenecks and achieving a 30% improvement in system response time.

- Optimized database-related aspects of workflow using SQL, resulting in a 20% increase in database performance and a 15% decrease in query execution time.- Maintained over 200 pages of project documentation. - Monitored database performance and proactively identified and resolved issues. - Oversaw data security and compliance, implementing access controls, encryption, and other measures to protect sensitive data and meet regulatory requirements. - Managed database-related projects, coordinating resources and timelines to ensure successful completion.

- Tutored the students of different ages, explained the basics of Chinese and English languages, and guided through each student’s flaws; - Occasionally introduced English as a second language to kindergartens in China.