• Developed a Node.js backend for a video generation platform using FFmpeg to merge overlays, backgrounds, audio and images, with support for large chunked uploads, Stripe Checkout Sessions with webhooks, JWT authentication, captcha verification, Improved video rendering speed by 30% and SSL-secured email delivery. • Led frontend development for a lien and debt collection app integrating Twilio SMS, Stripe for secure payments, DMV record display, VIN Decoder and Plate Lookup functionalities. • Built and maintained a delivery app in Flutter with offline sync, in app navigation (Google Maps with route markers), order photo uploads, and on device client signature capture using a mobile canvas. • Developed a schooling based Ionic app with Firebase chat, FCM notifications and digital forms for teachers to document student interactions. • Created a funding app with PayPal integration, JWT authentication, daily rewards system, Sentry monitoring, user form uploads, public/private profiles, and social features such as comments, likes/dislikes, and friend requests.