Backend and Full-Stack Development for Venue Ordering PlatformBackend and Full-Stack Development for Venue Ordering Platform
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HandOff is a venue ordering and delivery platform built around customer and runner mobile applications, admin and vendor web portals, and a shared backend API.
As a Backend Developer / Full-Stack Engineer, I worked on the NestJS and PostgreSQL backend supporting authentication, order management, payments, reporting, notifications, and application integrations.
My contributions included: • Developing backend APIs using NestJS and PostgreSQL • Building admin and vendor web portals with React.js • Implementing configurable themes and application modules • Integrating Firebase Cloud Messaging for push notifications • Integrating AWS S3 and Cloudinary for file uploads • Supporting email and SMS notification integrations
Tech Stack: NestJS, PostgreSQL, React.js, Firebase Cloud Messaging (FCM), AWS S3, Cloudinary.
The project demonstrates my experience working across backend architecture, web portals, mobile app integrations, and connected application services.
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The network for creativity
Join 1.25M professional creatives like you
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Creatives on Contra have earned over $150M and we are just getting started