Engineering Associate
Wells Fargo — Mainframe Credit Card Decisioning Lateral move to engineering track with deeper development ownership- Coded a COBOL/CICS routine that evaluates sanctions-list hits against SSN, DOB, and last name to clear false positives while keeping true hits in analyst review.
- Built a CICS review screen and SOAP/XML integration so analysts can view, page through, and override sanctions hit data from within the front-end application.
- Fixed instant-credit-approval handling for partner credit cards so eligible customers can use their card immediately. Also discovered an unrelated routing defect outside my story and reported it to the Product Owner.
- Fixed a loop that forced underwriters to resubmit applications twice. Applications now redecide in one pass.
- Added new targeted-offer fields to the inbound payload. During UAT, found the upstream system wasn't sending fields as specified in the requirements; made a late code change to fix it before install.
- Added a tokenized card-reference number to the outbound status message, replacing account numbers in downstream data. Validated backwards compatibility so existing consumers kept working.
- Synced upstream product data into product tables so card plastic types stay current. Checked sample data outside my scope during UAT and caught a plastic-type mismatch, preventing wrong card types from going downstream.
- Coded auto-clear logic for fraud review on a premium product line. Only clears when the upstream fraud system confirms it is safe, preventing fraudulent applications from booking.
- Built a GitHub Copilot workflow that writes PowerShell scripts to generate JCL test scenarios on z/OS, cutting down manual test setup.
- Contributing to a Spring Boot web app on z/OS that visualizes integration traffic between ACAPS and downstream systems.