Designs, develops, and maintains scalable Java backend systems, RESTful APIs, database schemas, integrations, and migrations. Ensures code quality, testing, performance, reliability, and security while collaborating with frontend, UX/UI, and product teams. Contributes to the full software development lifecycle, evaluates technologies and architectural improvements, and mentors junior developers.

Designs and documents manual and automated test cases, executes tests, identifies and reports defects, validates fixes, and ensures functional and non-functional requirements are covered. Collaborates with developers and stakeholders during requirement reviews, communicates test results, and updates testing activities to align with release schedules. Uses Selenium, JUnit, Jira, Bugzilla, black-box testing, white-box testing, and scripting for test automation.