Muhammad A.

AI Agent & LLM Engineer | RAG, LangChain, LangGraph, Multi-Agent Systems I build production AI agents, RAG systems, and full-stack AI apps that hold up outside a demo. Most of my work is LangChain/LangGraph agents, retrieval pipelines that don't hallucinate, and shipping the whole thing on AWS with a real frontend attached. 100% Job Success, 5.0 rating, and I'm available now. What I actually build: Autonomous and multi-agent systems with LangGraph and CrewAI — tool use, function calling, and workflows that run unattended in production, not just in a notebook. RAG and chatbots on Pinecone, Chroma, Weaviate, or Qdrant. I do hybrid search, reranking, and guardrails because retrieval quality is usually where these projects live or die. LLM engineering: fine-tuning open models (Llama, Mistral, Mixtral) with LoRA/QLoRA, plus integrations with OpenAI, Claude, and Gemini. I care about evals and cost, not just getting a response back. Full-stack AI SaaS end to end — FastAPI or Django backend, Next.js/React frontend, Postgres or Mongo, Stripe, auth, deployed on AWS or Vercel. I also do AI automation (n8n, Make, custom Python), computer vision with YOLOv8, and real-time voice (speech-to-text and speech-to-speech) when a project needs it. Recent example: [e.g. "Built a RAG support assistant that cut a client's average response time from 6 minutes to under 40 seconds across ~2,000 tickets/month."] — replace with one real result; this single line does more than any tool list. Stack: Python, LangChain, LangGraph, CrewAI, PyTorch, TensorFlow, YOLOv8 · FastAPI, Django, Flask, Node.js · Next.js, React, TypeScript, Tailwind · Pinecone, Chroma, Weaviate, Qdrant, Postgres, MongoDB, Redis · AWS, GCP, Docker, Vercel, n8n. Why clients keep me around: I ship fast, I tell you what's realistic before you've paid, I test before I hand anything over, and I don't vanish after the invoice clears. If you're building an AI product, automating a workflow, or need a full-stack system that works in the real world, send me the brief. I'll tell you honestly what's possible and how long it'll take.