KARTHIK VR

Software Engineer

Wissen Technology

Sep 2024 - Present

Contributed to the AOR-Service backend, leading collaborative execution with cross-functional teams to make architectural decisions and resolve complex technical roadblocks, resulting in a 30% reduction in API response aggregation time across 5 downstream services. Built and maintained 5+ Java/Spring Boot Source and Sink components, handling downstream retrieval, JSON transformation, validation, and persistence integration through existing DB2 stored procedures. Developed and enhanced the OCA Source to retrieve and transform downstream data before integrating results into the AccountOverview aggregation flow, ensuring consistent data mapping across downstream responses. Implemented and updated validation and exception handling for API and downstream-service interactions, ensuring robust software testing coverage and graceful failure handling for mission-critical banking workflows. Reduced Account Overview response latency by 10% by implementing concurrent data retrieval using ThreadPoolTaskExecutor, enabling independent Source components to execute in parallel and contribute their results to the Account Overview aggregation flow. Authored comprehensive technical documentation and design specifications for the AOR-Service backend, ensuring high-quality standards and effective problem solving for mission-critical integration workflows.