Kaustav Basu

Results-driven QA Automation Engineer with 4+ years of experience building and scaling automated test suites for high-volume corporate and retail banking platforms, including NEFT, RTGS, and Account-to-Account (A2A) transaction workflows. Deep hands-on mastery of Playwright with JavaScript/TypeScript, specializing in end-to-end UI automation, RESTful API testing, and CI/CD pipeline integration. Proven track record of leading a Selenium-to-Playwright migration that reduced full regression cycle time by 65% while improving test stability and coverage.

Strong domain expertise in corporate banking products, combined with a disciplined, maintainability-first approach to test architecture using the Page Object Model.

Senior QA Automation Engineer - Intellect Design Arena Ltd. - Chennai, India

(2024-01)

• Led the end-to-end migration of a legacy Selenium (Java) regression suite covering corporate banking modules (NEFT, RTGS, A2A) to Playwright with TypeScript, cutting full regression execution time from 6 hours to under 2 hours (a 65% reduction).
• Architected a scalable Page Object Model (POM) framework with reusable fixtures and custom test hooks, reducing script maintenance effort by 40% across 6 concurrent squads.
• Integrated Playwright's API testing capabilities with Axios to validate NEFT/RTGS transaction payloads and settlement statuses directly against backend services, catching data-integrity defects before UI regression began.
• Introduced visual regression testing and trace viewer-based debugging for high-value fund-transfer screens, reducing production UI defects in corporate banking dashboards by 30%.
• Developed over 10000+ automated Playwright test scripts (JavaScript) for corporate banking workflows spanning fund transfers, beneficiary management, and A2A account linking, achieving 85% functional test coverage.
• Leveraged Playwright's auto-waiting and UI Mode to eliminate flaky, timing-dependent test failures, improving suite reliability from 78% to 98% pass consistency.
• Designed reusable API test modules to validate NEFT/RTGS/A2A/IMPS transaction status codes and third-party payment gateway responses, reducing manual API verification effort by 20 hours per sprint.
• Integrated automated test execution into GitHub Actions, triggering smoke and regression suites on every pull request and reducing defect leakage into UAT by 35%.

Bachelor of Technology / Engineering (B.Tech / B.E.) - Computer Science - RCC Institute of Information Technology (2017 - 2021)