• Architected a real-time event booking system for 10,000+ users, pairing interactive WebView seat-selection with SupabaseRealtime (Broadcast/Presence) and atomic PostgreSQL RPC locking to prevent race conditions.
• Engineered monetization flows integrating RevenueCat for dynamic remote paywalls and auto-renewing subscriptions, alongsideStripe PaymentSheet (Apple/Google Pay, 3D Secure), processing 1,000+ transactions across 3 production apps.
• Designed client-side state with TanStack Query and Zustand, implementing optimistic mutations with automatic rollback andquery deduplication to reduce redundant API calls by 40%.
• Eliminated scroll lag on low-end Android devices by migrating list feeds to Shopify FlashList with custom item recycling andmemoization, maintaining 60 FPS across 1,000+ item feeds.
• Automated cross-platform CI/CD via GitHub Actions and EAS (Build & Submit), cutting release cycles from ~5 days to under 4hours and establishing E2E suites with Maestro and RNTL covering core checkout and auth flows.
• Designed Supabase backend infrastructure spanning 15+ PostgreSQL tables, 10 optimized RPCs, database triggers, and 20+ Row-Level Security (RLS) policies to keep business logic server-enforced.

• Built a fault-tolerant offline-first architecture using SQLite and a persistent background mutation queue with exponential backoffand conflict resolution, ensuring 100% data integrity in zero-connectivity environments.
• Integrated native background geolocation and mapping SDKs for route optimization across 150+ retail outlets, implementingbattery-aware geofencing and GPS throttling to cut battery consumption by ~25%.
• Built 5-step inspection and ordering wizards validating 30+ fields per submission with React Hook Form + Zod, compressingimages by ~50% before background upload.
• Developed the networking layer handling 3,000+ daily API calls for order management and 500+ product SKUs, implementingJWT silent refresh interceptors and graceful failure recovery.