Uzman Khan

AI & Full-Stack Consultant

Fiverr • Freelance

Aug 2025 - Present • 1 yr 1 mo

I help startups and businesses design, build, and scale AI-powered web applications from concept to production. My work spans full-stack development, AI integration, and cloud architecture using Next.js, React, Node.js, NestJS, TypeScript, Python, PostgreSQL, Redis, Docker, Kubernetes, and AWS. Recent projects include building ShopFloorGPT, a multi-agent AI platform with LangGraph orchestration and Anthropic Claude integration, and Auxee, an AI document intelligence platform powered by RAG pipelines and semantic search. I've delivered 25+ production applications across SaaS, AI, analytics, fintech, and enterprise platforms, handling everything from architecture and backend APIs to frontend development, DevOps, CI/CD, and cloud deployment. My focus is writing scalable, maintainable software that solves real business problems.

Principal Full Stack Engineer | AI Architect | LangChain · LangGraph

Daatrics • Full time

Apr 2025 - Aug 2025 • 4 mos

Architected microservices supporting 50,000+ concurrent users with 99.9% uptime and 40% faster response times using Node.js, NestJS, Python, FastAPI, PostgreSQL, Redis, and Kafka. Built Multi-Agent AI Systems using LangChain, LangGraph, GPT-4/5, and Claude AI — delivering 35% smarter product intelligence and 60% engagement lift. Engineered RAG Pipelines with Weaviate, Pinecone, and Qdrant achieving 92% retrieval accuracy. Built Auxee App AI Document Intelligence platform processing 1,000+ daily documents at 99.8% accuracy across 50+ enterprise clients using LangGraph, semantic search, and Agent-Tool Orchestration. Designed AWS infrastructure with Kubernetes, Docker, Terraform, and GitHub Actions 𝗦𝗸𝗶𝗹𝗹𝘀 𝗮𝗻𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ➤ Taught Full Stack SaaS Architecture ➤ Coached React.js & Next.js Development ➤ Guided Backend Engineering with Node.js ➤ Trained Teams on NestJS & TypeScript ➤ Explained Vector Databases & Semantic Search

Senior Full Stack Engineer | MERN Stack | Node.js · NestJS · React | Phaedra Solutions

Amcodr IT Solutions • Full time

Jun 2021 - May 2025 • 3 yrs 11 mos

I Built API Gateway with rate limiting processing 10,000+ hourly requests at sub-200ms latency using GraphQL and REST API integration. Engineered event-driven architecture using Redis Pub/Sub and RabbitMQ synchronizing 20+ distributed services in real time. Developed WebSocket platform serving 1,000+ concurrent users. 𝗦𝗸𝗶𝗹𝗹𝘀 𝗮𝗻𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ➤ Contributed to LangChain & AI Projects ➤ Built Reusable AI Workflow Templates ➤ Developed Open Source RAG Modules ➤ Created AI Chatbot Boilerplates ➤ Shared AI Agent Architecture Patterns ➤ Built MERN Stack Starter Kits ➤ Developed NestJS Backend Templates ➤ Contributed GraphQL & REST API Modules ➤ Shared OpenAI Integration Examples ➤ Created Real-Time WebSocket Implementations ➤ Built Docker & Kubernetes Configurations