I am Certified Senior Oracle Database PL/SQL Expert with 12+ years experience at banking and insurance sector. I mainly develop banking business applications (payment systems, card processes, deposits, loans) from scratch using PL/SQL for backend business logic development and Oracle APEX frontend development. My expertise includes developing complex database designs and packages based on the technical requirements, analyzing existing PL/SQL packages, making required changes, creating complex reports using SQL, analyzing existing data using advanced SQL and excel features, data entry, data cleansing.