Home-care agencies have to verify and document every caregiver visit for Medicaid compliance, but the tools to do it are clunky and fragmented across web, mobile, and state reporting.
A four-workspace Turborepo (a shared domain core, an Express API, a React admin console, and an Expo caregiver app) built with one other engineer, with shared models and validation keeping all four in lockstep. The caregiver mobile app was mine alone: I designed the interface and built every screen, including GPS visit verification that flags any caregiver who moves outside the client's geofence radius for review, an offline store-and-forward queue that survives dead zones, e-signature verification of service, push and SMS notifications, in-app training courses, mileage and earnings, availability and time-off, and a consented selfie identity check at clock-in. I also built the claims and billing transport: 837P X12 claim submission with automated 835 remittance ingest, plus scheduled visit submission to state aggregators (Sandata, HHAeXchange).
Live at rayhealthevv.com with 1,081 tests behind seven required CI gates, an append-only audit log enforced by a database trigger, cell-level PHI encryption, capability-based RBAC, and automated security scanning on every pull request.