Hi, I'm Deva -
Backend Developer
I build scalable backend systems using Node.js and MongoDB.
I deploy production-ready APIs with Docker and AWS.
I focus on clean architecture, performance, and reliability.
about
Education: MCA (Final Semester)
College: TIMSCDR - Thakur college kandivali (E)
I'm a backend developer focused on building scalable APIs using Node.js and Express. I've also built and deployed projects using Docker and AWS, and I'm continuously improving my skills in system design and backend performance.
skills
Core
Databases
Infrastructure
APIs & Auth
Testing
Tools
experience
➡️ Built and maintained RESTful APIs for user authentication, authorization, and profile management using Node.js, Express, MongoDB/PostgreSQL
➡️ Designed and optimized database schemas, improving query performance and reducing response time
➡️ Integrated end-to-end payment workflow including order creation, verification, and webhook processing using Razorpay
projects
💳 Ledger-Based Banking System
Built a production-grade backend system inspired by real-world banking architecture using ledger-based accounting and MongoDB transactions.
⚖️ Implemented double-entry system (DEBIT/CREDIT) ensuring financial consistency.
📊 Designed dynamic balance calculation using aggregation (no stored balance).
🛡️ Built fault-tolerant transaction flow with MongoDB sessions.
🔁 Implemented idempotency keys to prevent duplicate transactions.
📜 Created immutable ledger system to ensure auditability.
🔐 Secured APIs using JWT + HTTP-only cookies + token blacklisting.
🐳 Dockerized deployment (AWS EC2 + Nginx + HTTPS).
📚 Books API — with Auth, Cloud Storage & Testing
A production-ready backend system built using Node.js, Express, and TypeScript, designed to simulate a real-world digital library platform with secure authentication, file uploads, cloud storage, and automated testing.
📁 File upload system (Multer → Cloudinary).
🔐 JWT-based Authentication & Authorization.
⚠️ Centralized error handling middleware.
🧪 Automated testing using Jest & Supertest.
🧠 Ownership-based access control.
🌐 Static file serving support.
🐳 Dockerized deployment (AWS EC2 + Nginx + HTTPS).
📝 AI-Powered Full Stack Blog Platform
Built a full-stack blog application with modern web technologies, enabling users to create, manage, and explore content seamlessly. The platform features secure authentication, an admin dashboard, cloud-based image uploads, and AI-powered blog generation for enhanced productivity.
🤖 AI-powered blog generation using Gemini API
📝 Create, edit, and delete blog posts with rich content support
🖼️ Image upload and optimization using ImageKit
👨💼 Admin dashboard for content and comment management
💬 Comment system for user interaction
⚡ Fast and responsive UI built with React + Vite
contact