Backend-Focused Full Stack Developer (Node.js Specialist), I build scalable backend systems, high-performance APIs, and production-grade applications using Node.js and Express. With 3+ years of experience, I’ve developed real-world systems including healthcare platforms, CRM tools, and job portals, focusing on performance, security, and clean architecture.
- Backend Development (Node.js, Express.js)
- REST API Design & Architecture
- Authentication & Security (JWT, RBAC)
- Database Design & Optimization (MongoDB, MySQL, PostgreSQL)
- Scalable System Design & Performance Tuning
Multi-role healthcare system with AI-driven workflows
- Built Patient, Doctor, Admin, Staff portals
- Integrated AI triage assistant → reduced admin workload by 35%
- Real-time patient risk analysis (<100ms latency)
- Automated scheduling → reduced no-shows by 22%
- Secure payment system with Razorpay/Stripe failover
A comprehensive payment management system for Colleges,educational institutions, Restaurents, Hotels, and every where you need to track you payment and provide a receipt to user with real-time payment tracking, admin dashboard, and Razorpay integration.
Real-time Payment Overview: Live statistics showing total received, pending, and failed payments Payment Statistics: Monthly trends and percentage changes Advanced Filtering: Filter by class, status, date range, and search functionality Class-based Filtering: View payments by specific student classes (e.g., 12thA, 11thB) Real-time Updates: Automatic refresh every 30 seconds with new payment notifications Export Functionality: Export payment data to CSV format Payment Details Modal: Detailed view of each payment with Razorpay transaction IDs
👉 👉 GitHub Link Here
Production-ready commerce solutions
- Authentication, cart, order management
- Backend APIs optimized for performance
- Scalable database design
Real-time ride booking system
- Ride matching & booking logic
- Payment integration
- Real-time updates
- Building scalable backend systems
- Learning Docker, Kubernetes, and CI/CD pipelines
- Exploring distributed systems & performance optimization
- LinkedIn: Rajat Singh Tomar
- GitHub: https://github.com/rajat290
- Email: rajatsinghtomarofficial@gmail.com
I focus on building systems that are not just functional, but scalable, maintainable, and production-ready.
🚀 Always open to collaboration and backend engineering challenges.