• Exploratory & Functional Testing: Executed end-to-end testing cycles for web applications, evaluating critical user paths including authentication flows, multi-step form validations, and localized UI components.

• Bug Reporting: Documented high-quality defect reports with clear, concise reproduction steps, logs, and screenshots, ensuring actual behavior was precisely contrasted against expected results.

Financial Risk Mitigation: Prevented potential platform losses by detecting missing validation limits in a deposit-adjustment workflow; successfully documented and escalated the logic flaw to protect financial data integrity.

• Complex Defect Isolation: Investigated critical reports of freezing free-spin bonuses during live gameplay, successfully uncovered bonus cloning as the root cause, and provided actionable reproduction steps for developers.

• Client-Server Troubleshooting: Utilized Chrome DevTools Network panel to capture and analyze failed HTTP requests, isolating an unavailable external game provider server and resolving a blocker issue (HTTP 502).

• Defect Lifecycle Management: Managed full defect lifecycle in Jira, validating bug fixes across pre-staging, staging, and production environments while conducting comprehensive regression suites to ensure release stability.

• Requirements & Logic Analysis: Analyzed complex business logic, identified edge cases during the early stages of feature implementation, and effectively communicated technical findings to cross-functional teams.

• Data Auditing & Analysis: Formulated financial and operational reports, optimized cost calculations, and performed meticulous data integrity audits to ensure absolute accuracy in tender documentation.

• Workflow Optimization: Conducted timekeeping and time-and-motion analysis, uncovering hidden process inefficiencies and improving reporting reliability.