Enterprise Financial Management System — NYC Public Schools

Developed and maintained an enterprise-grade financial management system for New York City Public Schools transportation services. The system processes $500M+ in annual costs across 300+ vendors and 100,000+ monthly transactions. Key features include automated cost distribution, admin fee calculations, escort cost engine, expense reporting with 75% faster generation, and financial reconciliation. Built using ASP.NET Core, Angular, SQL Server, and RESTful APIs following Clean Architecture principles.