Hi, I'm
Ujjwal Kumar
I build complete digital products — from React and React Native interfaces down to Node.js APIs, Supabase/PostgreSQL data, and the authentication and business logic that hold them together.
Six areas I work across, end to end.
Dashboards, admin panels and responsive business applications built in React.
React Native apps with real API integration and device-level workflows.
REST APIs, service-layer architecture and business logic in Node.js and Express.
JWT authentication, Supabase and PostgreSQL data modeling done properly.
Payments, orders, expenses, localization and attendance — real business logic.
SMS parsing, JSON translation pipelines, and PDF generation/export.
Full Stack Developer · Product Engineer
I enjoy building complete applications — the interface someone taps first, and the API and database decisions underneath it that no one sees. That means owning frontend architecture, backend services, authentication and the data layer together.
Most of what I've built doesn't behave like a tutorial example: payment and expense flows, multilingual systems, attendance and biometric check-ins, order and dispatch workflows.
Download CV ↓Real workflows, not demo apps.
A full-stack sales and order management platform built for a dry-cleaning business to manage customer orders, order workflows, services, and business operations through a modern web interface.
A full-stack group expense management application that makes sharing expenses and settling debts effortless. Users can create groups, track shared expenses, split bills, manage balances, and simplify settlements with real-time data synchronization. Available on Google Play Store.
A role-based project management platform designed to streamline project planning, task allocation, team collaboration, and work tracking. Includes dedicated Admin, Manager, Resource, and QA workflows, with project dashboards, daily work entries, task management, and progress monitoring.
A web-based management system designed to help manage school operations, student-related information, daily activities, and administrative workflows through a structured interface.
The actual business problem, first.
A clean, intuitive experience.
Frontend, backend, API, data.
Maintainable, readable code.
Test, debug, optimize.
Let's turn the idea into something people can actually use.