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You will get scalable backend APIs with Node.js & NestJS

Uzman K.Status: Offline
Uzman K. Uzman K.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Uzman, priced and ready to go.
Uzman K.Status: Offline
Uzman K. Uzman K.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Uzman, priced and ready to go.

Project details

I will engineer scalable backend APIs and microservices architectures optimized for performance, security, and enterprise-grade scalability.

Whether you need REST APIs, GraphQL systems, event-driven microservices, or real-time backend infrastructure, I can deliver production-ready backend solutions.

Services include:

➤ Backend API Development
➤ Node.js & NestJS Architecture
➤ FastAPI & Python APIs
➤ REST API & GraphQL Development
➤ Microservices Architecture
➤ Event-Driven Systems
➤ Redis, Kafka & RabbitMQ Integration
➤ Real-Time WebSocket APIs
➤ PostgreSQL & MongoDB
➤ Authentication & Authorization
➤ Cloud Infrastructure & AWS
➤ Docker & Kubernetes Deployment

I focus on scalable architecture, optimized performance, clean code, and reliable backend systems ready for production.

Let’s build a secure and scalable backend for your product.
Programming Languages
JavaScript, ASP.NET, C#
Coding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance Optimization

What's included $99

These options are included with the project scope.

$99
  • Delivery Time 3 days
  • Number of Revisions 2
    • Design Customization
    • Content Upload
    • Responsive Design
    • Source Code
5.0
2 reviews
100% Complete
(2)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

GY

Ghulam Y.
5.00
Jan 1, 2026
Backend API Performance Specialist Needed for NestJS / Node.js Muhammad did a great job fixing our NestJS API issue. He was quick, professional, and delivered clean, optimized code. Communication was smooth throughout the project. Highly recommended.

IM

Ivana M.
5.00
Dec 16, 2025
LLM Agent Developer It was a real pleasure collaborating with this freelancer. Communication was clear and easy throughout, tasks were handled with care, and everything was delivered in a professional and reliable way. Collaboration was smooth and enjoyable, and the overall quality of the work met our expectations very well. A great experience overall.
Uzman K.Status: Offline

About Uzman

Uzman K.Status: Offline
AI Developer | LLM Developer, AI Agents, AI Chatbot | MERN Stack
100% Job Success
5.0  (2 reviews)
Lahore, Pakistan - 8:32 pm local time
𝗔𝗜 𝗔𝗴𝗲𝗻𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗟𝗮𝗻𝗴𝗖𝗵𝗮𝗶𝗻 & 𝗟𝗮𝗻𝗴𝗚𝗿𝗮𝗽𝗵 | 𝗥𝗔𝗚 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀 | 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗦𝗮𝗮𝗦

𝐆𝐢𝐯𝐞 𝐦𝐞 𝐬𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐭𝐨 𝐛𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐈'𝐥𝐥 𝐛𝐮𝐢𝐥𝐝 𝐢𝐭 𝐬𝐨 𝐢𝐭 𝐰𝐨𝐫𝐤𝐬 𝐟𝐨𝐫 𝐲𝐨𝐮 𝟐𝟒/𝟕. 𝐓𝐡𝐚𝐭'𝐬 𝐦𝐲 𝐩𝐫𝐨𝐦𝐢𝐬𝐞.

If you shoot me a invitation or message ill send you a personalized loom video back on how i may be able to help you!

I build AI agents, RAG systems, and AI-integrated SaaS applications using LangChain, LangGraph, OpenAI, and Claude APIs — backed by full stack engineering in Node.js, NestJS, React, and Next.js.

My recent work includes building an AI document intelligence system with RAG and semantic search, fixing and optimizing a NestJS API for performance, and developing LLM agent workflows for clients — all delivered with clear communication and clean, production-ready code.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗔𝗜 & 𝗟𝗟𝗠 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦
━━━━━━━━━━━━━━━━━━━━━━━━━━━━

→ AI Agent Development & Autonomous Workflows
→ LangChain & LangGraph Application Development
→ RAG (Retrieval-Augmented Generation) Pipeline Setup
→ Vector Database Integration (Pinecone, Qdrant, Weaviate)
→ Semantic Search & Embedding-Based Retrieval
→ OpenAI API & Claude API Integration
→ AI Chatbot & Conversational Assistant Development
→ AI Document Intelligence & Knowledge Retrieval Systems
→ Prompt Engineering & Token Cost Optimization
→ Multi-Agent System Design
→ AI Workflow Automation

━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞 & 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦
━━━━━━━━━━━━━━━━━━━━━━━━━━━━

→ Full Stack Web & SaaS Application Development
→ Backend API Development & Performance Optimization
→ Node.js, NestJS & Express.js Backend Engineering
→ React.js & Next.js Frontend Development
→ REST API & GraphQL Development
→ Database Design (PostgreSQL, MongoDB, MySQL, Redis)
→ Authentication & Authorization Systems
→ Microservices Architecture Basics
→ Cloud Deployment (AWS, Docker)
→ API Debugging & Code Optimization

━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗖𝗢𝗥𝗘 𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞
━━━━━━━━━━━━━━━━━━━━━━━━━━━━

→ LangChain | LangGraph | OpenAI API | Claude API
→ RAG | Vector Embeddings | Semantic Search | NLP
→ Python | Node.js | NestJS | Express.js
→ React.js | Next.js | TypeScript | JavaScript
→ PostgreSQL | MongoDB | Redis | MySQL
→ REST API | GraphQL | WebSockets
→ AWS | Docker | Git | GitHub

━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘
━━━━━━━━━━━━━━━━━━━━━━━━━━━━

✔ 100% Job Success Score on Upwork
✔ Hands-on experience building real RAG and AI agent systems
✔ Full stack range across frontend, backend, and AI integration
✔ Certified in LangChain, LangGraph, and AI Engineering
✔ Clear communicator, which every client review highlights directly
✔ Fast, detail-oriented, and accountable for outcomes
✔ Comfortable working independently or alongside existing teams

━━━━━━━━━━━━━━━━━━━━━━━━━━━━
▸ 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗜𝗘𝗦 𝗦𝗘𝗥𝗩𝗘𝗗
━━━━━━━━━━━━━━━━━━━━━━━━━━━━

→ AI SaaS and automation tools
→ Document intelligence and knowledge management platforms
→ Marketplace and booking platforms
→ Analytics and reporting systems
→ Startup MVPs and early-stage products

━━━━━━━━━━━━━━━━━━━━━━━━━━━━

If you need an AI agent built, a RAG pipeline set up, an LLM integrated into your product, or a backend API fixed and optimized, let's talk about your project.

𝗠𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲 𝗮𝗻𝗱 𝗜'𝗹𝗹 𝗿𝗲𝘀𝗽𝗼𝗻𝗱 𝘄𝗶𝘁𝗵𝗶𝗻 𝟯𝟬 𝗺𝗶𝗻𝘂𝘁𝗲𝘀.


𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀:
AI Agent Developer, LangChain Developer, LangGraph Developer, RAG Developer, Retrieval-Augmented Generation, AI Chatbot Developer, AI Workflow Automation, OpenAI API Integration, Claude API Integration, LLM Engineer, LLM Integration, Vector Database, Pinecone, Qdrant, Weaviate, Semantic Search, Embeddings, Prompt Engineering, AI Automation Expert, Multi-Agent Systems, AI SaaS Developer, AI Document Intelligence, Conversational AI, Generative AI Developer, Full Stack Developer, Node.js Developer, NestJS Developer, Express.js Developer, React Developer, Next.js Developer, TypeScript Developer, Python Developer, REST API Developer, GraphQL Developer, API Integration, API Optimization, PostgreSQL, MongoDB, MySQL, Redis, Backend Developer, Database Design, Authentication Systems, AWS Developer, Docker, Cloud Deployment, Git, GitHub, SaaS Architecture, Web Application Development, MERN Stack Developer

Steps for completing your project

After purchasing the project, send requirements so Uzman can start the project.

Delivery time starts when Uzman receives requirements from you.

Uzman works on your project following the steps below.

Revisions may occur after the delivery date.

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