Theodorus Heerschap

Provided day-to-day functional production support for Oracle EBS R12 Finance and Supply Chain across multiple concurrent clients. Resolved issues across GL/AP/AR/CE/PO/INV/OM and iProcurement, supported interface troubleshooting using Toad/SQL, and assisted with period close and reconciliations.

Optimized Oracle EBS SOA integrations between Oracle EBS and third-party supply chain systems, including mobile/handheld integration, suppliers, customers, and inventory movements. Authored BRDs/FDDs/MD050 using Oracle AIM standards and coordinated SIT and UAT to resolve defects while ensuring regulatory compliance.

Worked on an Oracle Finance transformation programme supporting data and functional migration from Oracle EBS to Oracle Cloud. Delivered functional consulting across GL/AP/AR, supported FAH and IFRS 17 workstreams, and performed data migration validation and CRP/SIT/UAT testing with AIM documentation and post-go-live procedures.

Performed SCM functional analysis covering procurement, inventory management, warehouse transactions, and order fulfillment (PO/INV/OM). Facilitated SIT/DEV and UAT sessions and provided end-user support, knowledge transfer, and system optimization guidance to improve operational adoption.

Supported a reverse-migration programme from Oracle Fusion back to Oracle EBS R12 in a highly regulated financial services environment. Configured ledger/COA structures, accounting hierarchies, cross-validation rules, and financial controls, and coordinated month-end and year-end close validation, reconciliations, and reporting verification.

Led an end-to-end Oracle EBS R12 Finance implementation for a government fleet management organization. Designed and configured COA and ledger setups, approval workflows, and financial controls for GL/AP/AR/CE/PO/INV, and executed CRPs/SIT/UAT with AIM documentation and end-user training to ensure launch readiness.

Provided functional support across financial modules (PO, AP, GL, AR, INV). Resolved incidents to minimize downtime and built internal user capability.

Managed Oracle EBS R12 maintenance and enhancements, scoping financial functionality and implementing security and responsibility profiles across PO, AP, AR, GL, iProc, and iExpenses. Supported ongoing functional improvements to the production environment.

Supported supply/demand streams (PO, AP, GL, AR, INV) during Oracle EBS R11 to R12 upgrade preparation. Coordinated patches with Oracle/MetaLink and DBAs to help safeguard uptime.

Led an Oracle EBS R12 implementation for AP, PO, INV, and OM from scoping workshops through to successful go-live. Conducted CRPs/UATs and created long-term AIM documentation.

Led an Oracle EBS R11 implementation for AP, PO, and Inventory modules, including system configurations and functional setups. Executed data validation to support go-live.

Led an Oracle EBS R11 implementation for AP, PO, Inventory, and iProcurement. Delivered user training and provided post-go-live support on schedule.

Led an Oracle EBS R11 implementation covering GL, PO, AP, AR, CE, and iProc for the UK public health sector. Designed custom reporting structures using FSGs (Financial Statement Generators).

Co-managed the Oracle EBS R11 implementation for London Borough of Lambeth’s Social and Environmental Services. Acted as system administrator and led process analysis and system testing.

Managed financial accounting, budgeting, consolidations, and reporting structures aligned with the upcoming legacy-to-Oracle EBS rollout. Supported the transition toward Oracle EBS by aligning reporting and processes with future requirements.

Handled full-scope financial accounting including trial balances and balance sheets for multiple medical schemes. Ensured compliance during internal and external audit cycles.

Completed an Oracle Certificate 11i (User and Setup) focused on core financials including AP, PO, AR, GL, and CE.

Matriculated from Vredendal High School in South Africa.