Rajeshwari Reddy Koppula

Developed and optimized Spring Batch jobs for processing millions of daily financial transactions to identify and prevent fraudulent activities. Built and fine-tuned alert-triggering mechanisms to identify suspicious patterns, ensuring faster fraud response times. Automated E2E test suites covering multiple transaction workflows, increasing defect detection in pre-production stages. Coordinated and executed Liquibase-based database migrations during deployments to multiple environments. Managed 150+ batch jobs through Control-M and Lightmin, ensuring optimal scheduling and minimal downtime. Integrated Apache Spark for large-scale transaction analytics, improving detection algorithms.

Migrated core application modules from legacy systems to modern Java stack, ensuring smooth data migration and integration. Developed and enhanced UI components using Angular to improve customer experience and usability. Refactored legacy code to improve maintainability, increasing SonarQube code quality score from 60% to 85%. Provided L3 production support, debugging and fixing high-severity defects under tight deadlines. Participated in daily stand-ups, sprint planning, and client demos, ensuring alignment with business goals.

Designed and implemented backend APIs using Spring Boot REST for HR self-service functionalities. Created database schema designs and integrated them with application workflows. Conducted manual API testing with Postman and automated test suites using JUnit and Mockito. Maintained high test coverage and adherence to coding standards, reducing post-release defects. Actively participated in peer code reviews, providing feedback to improve team code quality.