13 years architecting enterprise-grade applications across React, Angular, Node.js, and AWS.
Case Studies
Enterprise Delivery
Logistics & Mobility
Expo Delivery & Driver Platform
Real-time fleet coordination for enterprise logistics
Challenge. A national courier needed unified driver and customer apps with offline-first delivery tracking, push notifications, and sub-second location updates across 2,000+ active drivers.
Solution. Architected a React Native (Expo) monorepo with shared business logic, WebSocket-backed live tracking, background geolocation, and a NestJS event-sourced backend on AWS Lambda with SQS fan-out for order state machines.
Impact.
- Reduced delivery ETA errors by 34%
- 99.7% crash-free sessions across iOS & Android
- Onboarded 2,000+ drivers in 6 weeks
ExpoReact NativeNestJSAWS LambdaPostgreSQLRedis
Integrated Library Systems
React Web Components in Angular
Cross-framework component bridge for enterprise ILMS
Challenge. A university library consortium required modern React UI widgets embedded inside a legacy Angular 12 ILMS without a full rewrite — preserving Angular routing, auth, and change detection.
Solution. Built a Web Components layer with Shadow DOM isolation, custom event buses for Angular↔React communication, and a shared design token system. Delivered catalog search, reservation flows, and accessibility-compliant forms as framework-agnostic custom elements.
Impact.
- Shipped 12 React widgets into production Angular shell
- Zero regression in Angular change detection cycles
- WCAG 2.1 AA compliance across all new components
ReactWeb ComponentsAngularTypeScriptStorybook
Secure Communications
WebRTC Data Management Platform
End-to-end encrypted peer data channels for regulated industries
Challenge. A healthcare SaaS client needed HIPAA-aligned real-time data sync between clinicians with no server-side decryption of payload content — only metadata routing.
Solution. Designed a signaling server on NestJS with TURN/STUN on AWS, implemented DTLS-SRTP data channels with client-side AES-256 encryption, and built a React dashboard for session audit trails without exposing plaintext.
Impact.
- Zero plaintext data at rest on servers
- Sub-200ms P2P sync latency in EU regions
- Passed third-party security audit on first review
WebRTCReactNestJSNode.jsAWSPostgreSQL