Open to opportunities

Devanshu Singh

@devanshusingh

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Full Stack Developer building real-time, AI-powered applications with React, Next.js, Node.js, and MongoDB.

India

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What I'm looking for

I’m looking for a full-stack role where I can build secure, scalable products—especially real-time and AI-driven features—while working with modern React/Next.js stacks and cloud deployments.

I’m a Full Stack Developer skilled in React, Next.js, Node.js, and MongoDB, focused on delivering secure, scalable user experiences. I’ve built RESTful APIs and real-time applications with WebSockets, and I enjoy integrating AI services into practical products.

In my projects, I engineered secure authentication with JWT access tokens and bcrypt hashing, implemented Socket.IO bi-directional messaging, and integrated Cloudinary CDN for seamless media handling. I also developed an AI-powered symptom checker with Next.js API routes, optimized MongoDB Atlas connection pooling, and deployed to Vercel with environment-variable security and rate-limit handling.

Experience

Work history, roles, and key accomplishments

AI Symptom Checker

AI-Powered Symptom Checker

Jan 2026 - Present (5 months)

Developed a full-stack AI health assistant with Next.js and TypeScript, integrating the Google Gemini API for natural language symptom analysis and severity detection. Built serverless Next.js API routes with MongoDB Atlas connection pooling and deployed securely on Vercel with rate-limiting and environment variable management.

Next.js TypeScript Gemini API MongoDB Atlas Vercel Serverless Natural Language Processing API Rate Limiting JWT

Chatz Real-Time Chat

Chatz

Jan 2025 - Present (1 year 5 months)

Built a MERN real-time chat application using Socket.IO for bidirectional, event-driven messaging. Implemented JWT authentication with bcrypt hashing and integrated Cloudinary media uploads with a responsive React UI.

React Socket.IO MongoDB JWT Bcrypt Cloudinary WebSockets

ChunaavChain Voting DApp

ChunaavChain

Jan 2024 - Present (2 years 5 months)

Architected a decentralized voting DApp on Ethereum using Solidity smart contracts to provide transparent, tamper-proof results. Built the React frontend with TailwindCSS and integrated ethers.js + MetaMask for real-time vote tracking and wallet connectivity, including Hardhat unit tests for contract reliability.

Solidity Hardhat React Ethereum MetaMask TailwindCSS DApp Development Unit Testing

Education

Degrees, certifications, and relevant coursework

ABES Institute of Technology

Bachelor of Technology (B.Tech), Computer Science Engineering (Data Science)

2022 - 2026

Pursuing a B.Tech in Computer Science Engineering with a specialization in Data Science at ABES Institute of Technology. Program dates are Sept 2022 to Sept 2026.