Leading comprehensive modernization of a 30-year-old HR leave management SaaS platform serving 10,000+ users and managing 1M+ hours of employee accruals across multiple enterprise clients.
Executing complex database consolidation strategy collapsing 35 legacy databases into a unified architecture — addressing decades of technical sprawl from customer-specific customizations while maintaining zero-downtime operations.
Architecting a microservices-based platform with ReactJS frontend and ASP.NET Core API backend, implementing a phased migration strategy targeting Spring 2026 completion.