Konstantin Savelev

• Designing and scaling automation for backend banking systems (ISO 8583, Visa, Mastercard, UPI). • Building core Kotlin automation library, Spring Boot APIs for test data, and CI/CD pipelines with GitLab, Docker, Kubernetes. • Expanding test suites (REST/gRPC/SOAP), running load testing with Gatling, and developing UI automation in Playwright. Achievements: • Built core library adopted by all QA teams (–30–40% dev time; • Championed zero-defect CI/CD; • Created data service saving ~1h/week per QA.

• Manual and automated testing of core banking apps (transactions, transfers, fraud monitoring, limits). • Verifying data for international payments, card ops, and internal transfers. • Working with ISO 8583 and integrations with Visa, Mastercard, Mir, UPI. • Testing internal APIs, writing and executing load tests, analyzing results and reports. Achievements: • Automated full regression (cut 1–2 days to 5–10 min); • Ensured test stability and knowledge transfer; • Reduced production defects by 90%.

• Creating test plans for critical scenarios and supporting partner integrations with banks, telecoms, utilities, and government systems. • Transitioning from manual to automation with Python (pytest) and Jenkins CI/CD, improving docs in JIRA/Confluence, mentoring junior QAs. Achievements: • Boosted successful transactions by 15–20%; • Cut integration time by 20–30%; • Reduced critical production defects via stronger integration testing and delivered seamless payment services for millions of users.

Responsibilities: • Tested payment gateway handling client requests and generating financial messages per partner protocols. • Documented test cases and defects in JIRA/Confluence, improving workflow transparency. • Caught integration issues early by validating the gateway’s financial messages against partner-specific protocol requirements during integration testing.