Terroir specialty coffee e-commerce: building the store's web platform and mobile app on Google Cloud with Terraform IaC and a NestJS backend, including local payment rails. Architected a high-precision lottery system with FastAPI and Celery distributed task queues. Bilingual education platform: high-availability microservices on AWS ECS + ALB with SQS decoupling.

Built a video-first, TikTok-style coupon marketplace with QR validation for in-store redemption. Built a field-worker booking app with swipe logic, real-time location and real-time chat.

Contributed to an AI-driven mental health platform: n8n workflows analyzing user sentiment and conversations to generate personalized self-affirmation content; dashboards visualizing emotional progress trends.

US retail shuttle system: engineered the client-side architecture, the React Native app for driver logistics and Home-to-Store pickups, and the Next.js monitoring dashboard with real-time fleet tracking.

Healthcare platform connecting patients with medical specialists using Next.js and NestJS: real-time messaging with Socket.io, automated appointment notifications via cron jobs, secure auth with NextAuth.js.

Led development of a multi-vendor e-commerce ticketing platform (React, Redux, Firebase) with real-time inventory, custom WordPress REST APIs and secure payment gateways (Stripe, PayPal); facilitated Scrum delivery.

Built and operated Angular + Django applications on Docker/AWS EC2; asynchronous Redis pipelines processing datasets of 1M+ records; RESTful API performance optimization and daily AWS infrastructure management.

Developed web applications with Laravel and React; maintained and extended CitizenPath.com immigration platform with PHP/jQuery, custom WordPress themes/plugins, React Gutenberg blocks and Headless WordPress with GraphQL.