You will get Expert React Js | Next Js| MERN Stack | Node.js Developer
Top Rated
Top Rated
Project details
Quality is non-negotiable for me. The source code you receive will be clean, reliable, and high quality. I focus on delivering scalable React and Node.js solutions with fast turnaround, clear communication, and code that’s easy for your team to maintain. I bring senior-level expertise in both front-end development and backend architecture, ensuring your feature or app is efficient, modern, and built exactly to your needs. I also understand the end-customer perspective, so when I work on your idea, I consider everything from a business point of view as well.
Looking forward to your exciting projects. Place your order and let’s get started!
Looking forward to your exciting projects. Place your order and let’s get started!
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$99
|
Standard
$450
|
Advanced
$999
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 12 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 2 | 5 | 8 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
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CT
Charity T.
Dec 22, 2025
Website Creation and Design
I hired Ehtisham to add custom features to our React.js application and handle a fairly complex AI integration. The results were above expectations. He was extremely skilled, delivered high-quality work, and communicated clearly throughout the project. The AI was smoothly integrated, and the custom React features worked exactly as needed.
Overall, he was really good, reliable, and exceeded what we hoped for. I would gladly work with him again and highly recommend him to anyone needing advanced React or AI development.
Overall, he was really good, reliable, and exceeded what we hoped for. I would gladly work with him again and highly recommend him to anyone needing advanced React or AI development.
AK
Autif K.
Dec 10, 2025
Implementing JWT in Node React App
I use them regularly for my web troubleshooting projects. I'll likely use them again
LB
Luca B.
Oct 21, 2025
Building the API infrastructure on our current Bubble App
Working with Ehtisham was one of the best experiences I ever had here on this platform. Even before having a collaboration, he gave it all to fully understand the project. And this made the difference, instead of others he knew where we want to go and our vision. On top the communication was professional and he was always ready to jump on a call.
BB
Ben B.
May 7, 2025
Create a "Partnerships" Page on the OLC website
The Partnerships page looks fantastic — clean, clear, and exactly what we needed. Thanks Ehtisham!
RW
RC W.
May 5, 2025
Debug fix of AWS script
Ehtisham is the best engineer and freelancer we have ever worked with on upwork. Incredible talent and communication on all of our projects; highly suggest working with him!
About Ehtisham
Sr. AI Engineer | AI Agents, RAG, LLM Apps | OpenAI, Claude, LangChain
100%
Job Success
Lahore, Pakistan - 1:35 pm local time
Most AI freelancers hand you a prototype. I ship the whole product: the agent architecture, the retrieval pipeline, the APIs, the interface, and the cloud infrastructure it runs on. Ten years of full stack engineering is what makes that possible. The AI I build doesn't stay in a notebook. It goes live, and it stays reliable. I also offer data-driven insights to guide your decisions and secure long-term success.
𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗
• AI Agents and Automation: autonomous and human in the loop agents with tool use, function calling, and multi step workflows. LangChain, LangGraph, OpenAI (GPT-4o), Anthropic Claude.
• RAG Systems: retrieval pipelines with embeddings, vector databases (Pinecone, pgvector, Qdrant), semantic and hybrid search, evaluation and hallucination control.
• AI Chatbots: multilingual support and sales assistants on web, WhatsApp, Messenger, and Instagram, trained on your business data.
• LLM Product Features: streaming UX, prompt engineering, model routing, usage metering, and cost optimization inside SaaS products.
• AI Integration and Audit: adding AI to an existing product, including model selection, architecture review, and a realistic cost and performance roadmap.
𝗦𝗘𝗟𝗘𝗖𝗧𝗘𝗗 𝗪𝗢𝗥𝗞
• Built Aiva Stark, a multilingual AI customer support agent that answers on web, WhatsApp, Messenger, and Instagram from a single knowledge base.
• Architected an AI patent search platform for a Japanese research firm, running semantic search across millions of documents with embeddings, Elasticsearch, and GPU autoscaling, while cutting the projected infrastructure cost of the original design by [X]%.
• Developed an AI sales call analysis CRM that transcribes, scores, and summarizes every call automatically.
• Created a legal AI assistant (RAG over statutes and case law) and an AI video generation platform.
𝗕𝗔𝗖𝗞𝗚𝗥𝗢𝗨𝗡𝗗
Founder of a Tokyo registered software and AI studio (a JETRO J-Startup partner) serving Japanese enterprises and international startups, including teams backed by Y Combinator. Engineering foundation: TypeScript, Node.js, Next.js, React, Python, AWS, Firebase.
𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞
Clear scoping before we start. Honest calls on what AI can and can't do for your use case. Fast communication, and I reply within a few hours. Production quality code, documented and handed over properly.
If you're building an AI agent, adding AI to your product, or need someone to own an LLM feature from idea to deployment, send me a message or an invite and tell me a little about what you're building.
Steps for completing your project
After purchasing the project, send requirements so Ehtisham can start the project.
Delivery time starts when Ehtisham receives requirements from you.
Ehtisham works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Review & Clarification
Review your brief, ask any needed questions, and confirm the exact feature(s), timeline, and deliverables.
Project Setup
Set up the React front-end and Node.js/Express back-end (or integrate into your existing codebase) with a clean, scalable structure.