AI-Powered Web Applications & RAG Systems by Usman AhmedAI-Powered Web Applications & RAG Systems by Usman Ahmed
AI-Powered Web Applications & RAG SystemsUsman Ahmed
Cover image for AI-Powered Web Applications & RAG Systems
I build fast, scalable, and production-ready web applications — from clean frontend UIs to robust backend systems and AI-powered features.
With 4+ years of full-stack experience and deep expertise in LLM/AI engineering, I help startups and businesses ship products that actually work.
—————————————————————————— 🔧 WHAT I BUILD ——————————————————————————
✅ Full Stack Web Apps React / Next.js / Vue frontends paired with Node.js, Laravel, or FastAPI backends — built to scale.
✅ AI & LLM Integrations RAG pipelines, multi-agent systems, chatbots, document intelligence tools — powered by OpenAI, Gemini, LangChain, LlamaIndex.
✅ REST APIs & Microservices Clean, documented, and secure APIs integrated with any third-party service.
✅ Database Architecture MongoDB, PostgreSQL, MySQL — optimized schemas and queries from day one.
✅ Cloud Deployment AWS-hosted, Dockerized, production-grade. No "it works on my machine."
—————————————————————————— 🛠️ TECH STACK ——————————————————————————
Frontend: React · Next.js · Vue · Angular · TypeScript Backend: Node.js · Express · Laravel · PHP · FastAPI · Python AI/LLM: LangChain · LlamaIndex · LangGraph · OpenAI · Gemini Vector DB: Pinecone · ChromaDB Database: MongoDB · PostgreSQL · MySQL Cloud: AWS · Docker
—————————————————————————— 📦 RECENT PROJECTS ——————————————————————————
→ DocuMind AI — RAG-powered document Q&A (Next.js + FastAPI + Pinecone) → InsightSync AI — Multi-agent analytics (LangChain + Gemini + ChromaDB) → iClear Wellness — Health platform (MERN + AWS) → BeRemote / ReTeam — Remote work SaaS (MERN + Laravel + OpenAI)
—————————————————————————— 💡 WHY WORK WITH ME? ——————————————————————————
→ 95% reduction in system error rates delivered for clients → 95% improvement in client satisfaction metrics → 5-star freelance track record (14+ reviews) → I communicate clearly, deliver on time, and write clean code
Let's build something great — message me and I'll respond within a few hours.
Contact for pricing
Duration1 week
Tags
AWS
FastAPI
LangChain
Laravel
MongoDB
Node.js
OpenAI
Python
React
Service provided by
Usman Ahmed Lahore, Pakistan
AI-Powered Web Applications & RAG SystemsUsman Ahmed
Contact for pricing
Duration1 week
Tags
AWS
FastAPI
LangChain
Laravel
MongoDB
Node.js
OpenAI
Python
React
Cover image for AI-Powered Web Applications & RAG Systems
I build fast, scalable, and production-ready web applications — from clean frontend UIs to robust backend systems and AI-powered features.
With 4+ years of full-stack experience and deep expertise in LLM/AI engineering, I help startups and businesses ship products that actually work.
—————————————————————————— 🔧 WHAT I BUILD ——————————————————————————
✅ Full Stack Web Apps React / Next.js / Vue frontends paired with Node.js, Laravel, or FastAPI backends — built to scale.
✅ AI & LLM Integrations RAG pipelines, multi-agent systems, chatbots, document intelligence tools — powered by OpenAI, Gemini, LangChain, LlamaIndex.
✅ REST APIs & Microservices Clean, documented, and secure APIs integrated with any third-party service.
✅ Database Architecture MongoDB, PostgreSQL, MySQL — optimized schemas and queries from day one.
✅ Cloud Deployment AWS-hosted, Dockerized, production-grade. No "it works on my machine."
—————————————————————————— 🛠️ TECH STACK ——————————————————————————
Frontend: React · Next.js · Vue · Angular · TypeScript Backend: Node.js · Express · Laravel · PHP · FastAPI · Python AI/LLM: LangChain · LlamaIndex · LangGraph · OpenAI · Gemini Vector DB: Pinecone · ChromaDB Database: MongoDB · PostgreSQL · MySQL Cloud: AWS · Docker
—————————————————————————— 📦 RECENT PROJECTS ——————————————————————————
→ DocuMind AI — RAG-powered document Q&A (Next.js + FastAPI + Pinecone) → InsightSync AI — Multi-agent analytics (LangChain + Gemini + ChromaDB) → iClear Wellness — Health platform (MERN + AWS) → BeRemote / ReTeam — Remote work SaaS (MERN + Laravel + OpenAI)
—————————————————————————— 💡 WHY WORK WITH ME? ——————————————————————————
→ 95% reduction in system error rates delivered for clients → 95% improvement in client satisfaction metrics → 5-star freelance track record (14+ reviews) → I communicate clearly, deliver on time, and write clean code
Let's build something great — message me and I'll respond within a few hours.
Contact for pricing