Serves as the technical and business bridge between a legacy childcare subsidy platform and modernization initiatives. Reverse-engineers PowerBuilder and Informix logic, documents requirements, supports .NET Core, REST, and Angular components, validates functional parity, and coordinates QA and UAT. The role safeguards eligibility, enrollment, payment, compliance, and reporting functions while managing risks, integrations, data mappings, and production releases in a high-risk government environment.