Vijaykumar Chinnathambi

I’m an Oracle PL/SQL Developer with 4.9 years of enterprise database development experience, focused on building and optimizing large-scale applications. I design and develop complex SQL queries and PL/SQL database objects—stored procedures, functions, packages, triggers, and supporting schema elements.

I’m especially strong in query optimization and performance tuning. I analyze execution plans, apply indexing and partitioning strategies, and use AWR reports and ADDM analysis (plus SQL tracing) to identify bottlenecks and reduce response times.

On the data side, I handle high-volume transactional systems and reporting workloads. I’ve implemented ETL pipelines with validation and reconciliation, and I use Bulk Collect and FORALL to efficiently process large datasets for batch and production reporting.

I also provide hands-on production support with incident management, RCA, batch job monitoring, and SLA adherence to maintain high availability. In projects like banking transaction processing/reconciliation, ERP inventory & payroll modules, and a centralized data warehouse, I delivered faster reporting and more reliable database operations.