Md N.

AI Agent developer | MERN, n8n, LangChain, FastAPI, AWS, DevOps, MLOps

I help businesses turn manual workflows into AI agents that actually run in production — voice agents, LangChain/LangGraph pipelines, and n8n automations — backed by full-stack engineering (MERN, FastAPI) and the DevOps/MLOps setup to deploy, monitor, and scale them. WHAT I DO: • Build AI agents and agentic AI systems for support, sales, and internal ops — using LangChain, LangGraph, RAG pipelines with vector databases, and n8n to connect LLMs to real business systems (CRMs, databases, APIs) • Full-stack web development with React, Next.js, Node.js/Express, and Python/FastAPI — from MVP to production-grade apps • Set up cloud infrastructure and DevOps: AWS, Docker, Kubernetes, CI/CD pipelines, and monitoring so systems stay reliable under real traffic • Handle MLOps: deploying, versioning, and monitoring ML/LLM models in production, not just in a notebook • Architect system design for apps and agent pipelines that need to scale without breaking HOW I WORK: I start with a short discovery conversation to understand the actual business outcome you need (not just the tech spec), propose a clear architecture, then build in milestones with regular async updates — so you always know what's shipping next and why. No black-box deliveries. RECENT RESULTS: • "Built an n8n + LangChain support agent for a SaaS company, cutting first-response time by 95%" • "Self-hosted and scaled a private Git platform (Gitea) end-to-end for a team of 10-99 developers set up full observability with Prometheus, Grafana, Loki, and cAdvisor, and kept it running with zero downtime for 6+ months, fully replacing third-party Git hosting" • "Migrated a MERN Stack app to Dockerized AWS/K8s infrastructure, cutting deployment time from hours to minutes" GOOD FIT IF YOU NEED: • A production-ready AI agent, voice agent, or automation — not just a prototype that breaks after the demo • A full-stack developer who can also own deployment, infrastructure, and monitoring end to end • Clear communication and delivery against agreed milestones Not the right fit if you need pure data-science/model-training work with no product or infrastructure component — happy to point you toward the right specialist in that case. CORE STACK: JavaScript, TypeScript, React, Next.js, Node.js, Python, FastAPI, MongoDB, PostgreSQL, LangChain, LangGraph, RAG, Vector Databases, Agentic AI, n8n, AI Agent Development, AWS, Docker, Kubernetes, DevOps, MLOps. Tell me what you're trying to build — send a bit of context and I'll tell you honestly whether I'm the right fit for it. ------------------------------------------------------------