Responsible for testing backend infrastructure and complex transaction flows for capital markets systems, ensuring backend stability during new version releases. Core Responsibilities: - Executed comprehensive system, integration, and regression backend testing. - Performed deep-dive technical root cause analysis (RCA) by analyzing distributed server logs in Linux environments, Grafana/Kibana logs, DB. - Validated integration scenarios and transaction logic using the FIX Protocol. - Verified end-to-end data flow and communication between backend services and web-based platforms. Key Achievements: - AI-Driven Test results: Configured a custom Enterprise ChatGPT agent with project-specific instructions to automatically recognize and format FIX protocol tags in test documentation, eliminating a highly repetitive manual bottleneck. - Test Execution Speedup: Developed custom Bash and Python scripts to automate routine log parsing and analysis, streamlining debugging and significantly accelerating overall test execution.

Responsible for full-scope QA of internal transfers within a complex omnichannel digital banking system, ensuring E2E reliability from UI to banking core integrations Core Responsibilities: - Executed functional, integration, regression, and system testing across web and mobile platforms. - Analyzed user stories and acceptance criteria to design test documentation (BDD/Gherkin) and feature specifications. - Investigated logs and SQL databases to perform root cause analysis (RCA) on production bugs and client tickets. - Drove QA strategy during story refinements: defined testing boundaries (Dev unit vs. SDET API/E2E vs. manual) and ensured strict traceability mapping to business logic. - Managed cross-team dependencies, risks, and feature readiness within SAFe (PI planning), delivering regular product demos to stakeholders. - Participated in cross-team QA syncs to mitigate component risks, exchange best practices, and facilitate knowledge transfer. Key Achievements: - Regression Optimization: reduced manual regression cycle from 10 to 7 days and halted its expansion by implementing a traceability matrix and test pyramid to eliminate redundant cases. - Test Data Automation: Developed Python scripts for fresh user provisioning in the banking core, halving setup time and eliminating false positives caused by state pollution. - Support Efficiency Boost: Initiated an internal configuration diagnostic tool, reducing support clarification requests by 3x, uncovering 2 prod misconfigurations, and improving cross-team bug reporting accuracy.

● Troubleshot complex platform issues for B2B clients, distinguishing configuration errors from actual system bugs. ● Performed technical analysis to isolate root causes and authored structured bug reports for the engineering team. ● Managed POS system setups and configurations. ● Triaged incoming issues and maintained communication between clients and development teams.

● Managed research projects and delivered academic lectures. ● Leveraged Python and Bash for data parsing and statistical analysis. ● Performed large-scale computations on Linux clusters. ● Published articles in international journals and presented at international conferences.