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Khizar hayat
@khizar477
Level 2
MERN and AI Developer
Pakistan
English, Urdu, Hindi
About me
Hi, I'm Khizar, a Full-Stack Developer having 5+ years of experience specializing in MERN, Next.js, SaaS, and AI-powered applications. I build scalable web apps, business platforms, admin dashboards, and AI solutions from frontend to backend. My expertise includes React.js, Next.js, Node.js, Express.js, MongoDB, PostgreSQL, OpenAI, LangChain, LangGraph, RAG, REST/GraphQL APIs, third-party integrations, Stripe payments, subscriptions, performance optimization, and debugging. Let's turn your idea into a reliable, production-ready application.
Skills
Khizar hayat
$15/hour
Offline •
Average response time: 1 hour
See my services
Full Stack Web Applications
I will build a mern stack web app with react next js and node js
AI Integrations
I will build a custom ai chatbot using openai, claude or langchain
Want to work on an hourly basis?
Tell Khizar hayat what you need.
$15
/
hourPortfolio
Work experience
Software Enginerr
Datics AI • Full-time
Jun 2021 - Aug 2026 • 5 yrs 2 mos
Developed full-stack applications using React.js, Node.js, Express.js Next.js, FastAPI, PostgreSQL, and MongoDB. Built and integrated REST APIs, RBAC, 2FA, authentication, and third-party integrations. Worked on AI-powered applications using OpenAI, LangChain, and LangGraph. Handled production debugging, deployments, and infrastructure using Linux, Nginx, PM2, and VPS/cloud platforms. Collaborated on multiple SaaS products and delivered features from development to production. Progressed from backend-focused development to full-stack and AI application development.
25 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 25 Reviews
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Most relevant
namazkhan
South Korea
Ongoing collaboration
He created for me Tracks API for my WordPress website. Exceptional work. I am very satisfied and recommend his services to everyone. (It was not AI related work, so nobody is confused)
8 days
Duration
AI Integrations
Seller's Response
Helpful?
namazkhan
South Korea
Ongoing collaboration
We had to do some revisions but, I am satisfied with the final result.
3 weeks
Duration
Full Stack Web Applications
Helpful?
namazkhan
South Korea
Ongoing collaboration
Helpful?
avelinoccus
United States
Ongoing collaboration
Helpful?
avelinoccus
United States
Ongoing collaboration
Professional, responsive, and easy to work with. The core Milestone 2 functionality was delivered successfully, and issues were addressed promptly. Recommended.
7 days
Duration
Full Stack Web Applications
Helpful?
