Czarine Mandane

I’m a Senior Application Developer with 8+ years delivering AS400 (IBM i) solutions across banking and enterprise environments. I focus on building and maintaining COBOL and RPG IV applications, with hands-on work in TAMIC online and batch development.

In my current role at Optimum Solutions (for United Overseas Bank – UOB), I develop and support trade finance systems, design TAMIC online screens and batch processing functions, and ensure stability through application support and production issue resolution. I also lead testing, deployments, and post-release monitoring using Aldon, and drive system enhancements and bug fixes aligned to business requirements.

Previously at Accenture, I worked across development, deployment leadership, technical design, and data integration validation—covering mainframe COBOL for a German bank and AS400 RPG/COBOL for Caterpillar. I’ve managed deployment schedules and pre-deployment validation, built integration test plans and documentation, performed peer reviews, and implemented data validation procedures to protect data accuracy and completeness.