You will get OpenAI ChatGPT API integrated into your existing website or application
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Top Rated
Project details
Already have a web app? Let me plug AI directly into it — cleanly, reliably,
and without breaking what you already have.
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🔌 INTEGRATION TYPES
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✦ ChatGPT-powered chat widget inside your app
✦ AI content generator (descriptions, emails, reports)
✦ Smart form filler or intelligent auto-complete
✦ AI summarization of documents, text, or data
✦ Multi-step AI pipelines (draft + enrichment strategy)
✦ Background AI with live progress feedback (SignalR/WebSocket)
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⚙️ WORKS WITH YOUR EXISTING STACK
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✦ React / Next.js apps
✦ Angular applications
✦ Node.js / NestJS backends
✦ ASP.NET Core / .NET backends
✦ Any REST API-based system
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🔐 EVERY ORDER INCLUDES
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✦ Secure API key handling (never exposed to client side)
✦ Rate limiting & proper error handling
✦ Cost-efficient prompt engineering
✦ Clean, well-documented code you can maintain yourself
That's the level of quality you're getting.
📩 Message me before ordering — tell me what you want AI to do
in your app and I'll give you a clear plan within a few hours.
and without breaking what you already have.
━━━━━━━━━━━━━━━━━━━━━━━━
🔌 INTEGRATION TYPES
━━━━━━━━━━━━━━━━━━━━━━━━
✦ ChatGPT-powered chat widget inside your app
✦ AI content generator (descriptions, emails, reports)
✦ Smart form filler or intelligent auto-complete
✦ AI summarization of documents, text, or data
✦ Multi-step AI pipelines (draft + enrichment strategy)
✦ Background AI with live progress feedback (SignalR/WebSocket)
━━━━━━━━━━━━━━━━━━━━━━━━
⚙️ WORKS WITH YOUR EXISTING STACK
━━━━━━━━━━━━━━━━━━━━━━━━
✦ React / Next.js apps
✦ Angular applications
✦ Node.js / NestJS backends
✦ ASP.NET Core / .NET backends
✦ Any REST API-based system
━━━━━━━━━━━━━━━━━━━━━━━━
🔐 EVERY ORDER INCLUDES
━━━━━━━━━━━━━━━━━━━━━━━━
✦ Secure API key handling (never exposed to client side)
✦ Rate limiting & proper error handling
✦ Cost-efficient prompt engineering
✦ Clean, well-documented code you can maintain yourself
That's the level of quality you're getting.
📩 Message me before ordering — tell me what you want AI to do
in your app and I'll give you a clear plan within a few hours.
Programming Languages
HTML & CSS, JavaScript, ASP.NETCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$400
|
Advanced
$900
|
|---|---|---|---|
| Delivery Time | 7 days | 15 days | 30 days |
Number of Revisions | 2 | 4 | Unlimited |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
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RB
Rasoola B.
Jun 27, 2026
Full-Stack Developer for AI-Integrated Web App
Usama did excellent work on our AI-integrated web app. Built a clean React/Next.js front-end and a solid Node back-end, and handled the OpenAI and Claude integration smoothly. Communication was clear and consistent, deadlines were met, and the quality was high throughout. Highly recommend - would hire again.
FD
Fuad D.
Jun 21, 2026
Behavioral Analytics Platform (Long-Term)
Usama Over achieved on this project, I was not expecting the quick work and that level of quality, I've been impressed. This is a data Ops, Dev ops work, that require several deep dive search and troubleshooting.
AI
Asad I.
May 13, 2026
Full Stack Developer AI Integration, RAG Systems & SaaS
Usama Bin Nadeem, was a pleasure to work with. He listened to all my concerns and answered all my questions in a timely manner. His knowledge and expertise was extraordinary. His AI Integrations and AI Development skills impressed me really. He completed the project on time and met all my expectations. I would use him again and would recommend him to anyone.
AS
Ahmad S.
May 6, 2026
Full-Stack Developer for Healthcare System
Usama is an excellent developer. Highly professional, punctual and detail oriented. Highly recommended. We will work again in the future for sure. Thank you Usama!
JT
Jasmin T.
Apr 29, 2026
Senior Full Stack Developer Needed for .NET 8 and Next.js Project
Usama did an outstanding job building our platform from initial concept through full production deployment. He was extremely easy to work with, communicative throughout the entire process, and consistently delivered high-quality work.
He did a great job translating ideas into a real, functioning platform, proactively solving problems as they came up, and ensuring everything was implemented cleanly and thoughtfully. Any issues or changes were handled quickly and professionally, and he was always open to feedback and iteration.
Overall, Usama was a key contributor to bringing the Planora platform to life, and I would highly recommend him to anyone looking for a reliable, skilled developer.
He did a great job translating ideas into a real, functioning platform, proactively solving problems as they came up, and ensuring everything was implemented cleanly and thoughtfully. Any issues or changes were handled quickly and professionally, and he was always open to feedback and iteration.
Overall, Usama was a key contributor to bringing the Planora platform to life, and I would highly recommend him to anyone looking for a reliable, skilled developer.
About Usama Bin
Full Stack Developer | Next.js, Angular, .Net Core & Node Js | AI Apps
100%
Job Success
Gujranwala, Pakistan - 2:36 pm local time
I build AI-powered web applications that automate work, save time, and
create real business value.
Clients come to me when they want to add AI to their product — or build an
AI-first app from scratch. I handle everything: frontend, backend, AI
integration, and deployment.
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🧠 AI & AUTOMATION
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✦ OpenAI API (GPT-4, structured outputs, function calling)
✦ AI-powered content generation, recommendations & smart search
✦ Chatbots, AI assistants & automated workflows
✦ Prompt engineering & multi-step AI pipelines
✦ Real-time AI features with streaming responses
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⚙️ FULL-STACK DEVELOPMENT
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✦ Frontend: React, Next.js 15, Angular, TypeScript
✦ Backend: Node.js (NestJS), .NET Core / ASP.NET, REST APIs, SignalR
✦ Database: PostgreSQL, Entity Framework, query optimization
✦ Cloud: AWS (EC2, S3, Lambda), CI/CD pipelines
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🚀 RECENT AI PROJECTS
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✦ AI event creation engine — auto-generates event details, themes &
guest lists using GPT-4 with a two-step draft + enrichment pipeline
✦ AI-powered vendor matching — smart filtering and recommendation
system for a large-scale vendor directory
✦ Real-time AI progress tracking — SignalR-based live feedback while
AI processes requests in the background
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💬 WHY CLIENTS CHOOSE ME
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→ I've already shipped production AI features — not just experimenting
→ I translate vague AI ideas into working, reliable products
→ Fast turnaround, clean code, clear communication
→ I treat your project like it's my own business
📩 Send me a message — I typically respond within a few hours.
Let's build something smart together.
Steps for completing your project
After purchasing the project, send requirements so Usama Bin can start the project.
Delivery time starts when Usama Bin receives requirements from you.
Usama Bin works on your project following the steps below.
Revisions may occur after the delivery date.
You place the order & share requirements
Tell me your tech stack, what you want AI to do, and any existing code or API access. A quick brief is enough — no long documents needed.
I review, ask questions & confirm the plan
Within a few hours I'll analyze your setup, confirm the approach, clarify any gaps, and share a clear scope — what I'll build, how, and by when.