Sameer Khan
Available for new opportunities

Hi, I'mSameer Khan

Full Stack Developer (MERN)

MERN Stack Developer & Software Engineer

I craft beautiful, functional, and user-centered digital experiences. Passionate about clean code, modern design, and cutting-edge technologies.

About Me

Crafting Digital Excellence

Full Stack Developer with 1+ year of professional experience building high-performance, scalable web applications using MERN stack (MongoDB, Express.

Clean Code

Writing maintainable and scalable code following best practices and design patterns.

Performance

Building fast, optimized applications with Redis caching, API optimization, and CDN integration.

Problem Solving

Turning complex challenges into elegant solutions with real-time systems and AI integration.

Full Stack Developer with 1+ year of professional experience building high-performance, scalable web applications using MERN stack (MongoDB, Express.js, React.

Skills

Tech Stack

Next.js
React.js
TypeScript
Redux
Fabric.js
CSS/UI/UX
Node.js
Express.js
REST API
MVC Architecture
Design Patterns
MongoDB
MySQL
Redis
API Optimization
Rate Limiting
Socket.io
WebSockets
BullMQ
FCM
AWS EC2
AWS S3
CloudFront
Git
OpenAI
LangChain
Vector Search
AI Integration
NextAuth
Secure Sessions
Token Validation
Experience

Professional Journey

My career milestones and professional growth

Full Stack (MERN) Developer

Freelancer

January 2024 - 2025
Remote

Key Achievements

  • Architected and deployed 5+ scalable microservices using Node.js, reducing API response time by 40% and improving system reliability to 99.9% uptime

  • Built real-time collaborative features using Socket.io and Redis, supporting 10,000+ concurrent users with sub-100ms latency

  • Developed RESTful APIs with comprehensive authentication (JWT, OAuth 2.0) and role-based access control

  • Optimized MongoDB queries and implemented Redis caching strategy, reducing database load by 50% and improving page load times by 35%

  • Integrated AI chatbot using LangChain and OpenAI API, handling 100+ customer queries daily with 85% satisfaction rate

  • Established CI/CD pipelines using GitHub Actions and deployed on AWS (EC2, S3), reducing deployment time by 70%

  • Developed VS Code extensions (console-debug-pro, Node.js Snippets) with 150+ combined downloads

  • Mentored 3 junior developers in React.js, Node.js, and software design patterns

Technologies Used

Next.js
React.js
Node.js
MongoDB
Redis
AWS
Socket.io
WebRTC
Projects

Featured Projects

A collection of AI-powered projects showcasing innovation and expertise

OpenTalk

Real-Time Language Learning Platform

Developed a real-time language learning platform enabling users to create and join customizable conversation rooms. Integrated Redis for efficient session handling and scalable real-time communication across multiple users.

  • Real-time messaging and voice/video rooms using Socket.io + WebRTC
  • Redis-based session handling for 100+ concurrent users
  • Achieved 95.99% uptime with sub-100ms latency
React.jsNode.jsExpress.jsMongoDBSocket.io+2
View Project

GitProfileX

AI-Generated Developer Portfolio

Developed a dynamic portfolio generator using GitHub username. Integrates GitHub API to display repositories, stats, languages, and profile insights with live synchronization. AI-powered bio and project descriptions using OpenAI API.

  • Improved developer onboarding efficiency by 45%
  • Live GitHub API sync for repos, stats and language breakdown
  • AI-generated portfolio content using OpenAI API
React.jsNode.jsExpress.jsMongoDBRedis+4
View Project

URL Shortener Platform

Full Stack Web Application

Transform long URLs into short, shareable links with real-time analytics. Manage, track, and analyze link performance. Secured with Google OAuth 2.0 authentication to prevent unauthorized access.

  • Sub-100ms redirection with 40% improved link tracking efficiency
  • Reduced unauthorized access by 99.9% via Google OAuth
  • Real-time analytics dashboard for link performance
Next.jsReact.jsTypeScriptNextAuthOAuth 2.0+1
View Project

IChaty

Real-Time Chat Application

Developed a web-based, WhatsApp-like chat application with QR-based login, real-time messaging, group chats, broadcast messages, and status updates. Built responsive chat UI with real-time message updates using Socket.io and managed chat histories efficiently using Redux.

  • QR-based authentication
  • Real-time messaging
  • Group chats & broadcast
Next.jsSocket.ioReduxMongoDBMySQL
Contact

Get In Touch

I'm always open to discussing new projects, creative ideas, or opportunities to be part of your visions.

Email

Drop me a line anytime

codwithsameer@gmail.com

Phone

Call or WhatsApp me

+91 7014340099