Sentinel
Guard Location & NFC Attendance Tracking Platform
Sentinel is a real-time security guard management platform built for Dream Life Science (Pvt) Ltd, a Raigam Group company. It combines a web dashboard for supervisors with a React Native mobile app that enables guards to log attendance by scanning NFC tags at physical checkpoints.
My Role
I built Sentinel end-to-end at RotorX Solutions — from the Next.js web dashboard and MongoDB data layer to the React Native mobile app with NFC integration. I designed the system architecture, implemented the real-time tracking backend, and delivered both web and mobile applications for production use by the Raigam Group client.
Features I Built
Real-time guard location tracking dashboard with live map visualisation
NFC checkpoint scanning in the mobile app — guards tap NFC tags to log attendance
Historical check-in logs with time-stamped audit trails per guard and location
Web dashboard for supervisors to monitor guard positions and schedules
React Native mobile app (iOS + Android) for guards in the field
REST API backend with JWT authentication and role-based access
MongoDB data layer for visit logs, guard profiles, and checkpoint data
Tech Stack
Web Frontend
Mobile
Backend
Database
Built by Nisala Nadeera Kudaligamage — Full-Stack Software Engineer at RotorX Solutions