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Md N.
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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. ------------------------------------------------------------

🇧🇩Dinajpur, Bangladesh$10/hr100% JSS4.98 (5)Since Sep 2022

Earnings and projects

MRR
$79

Last 6 months ÷ 6

World#141,077 / 412k
🇧🇩Country#4,821 / 15.0k
Revenue, last 30 days
$0

Last 6 months: $472

Total earnings
$5.1k

Billed in all: $5.4k

World#253,147 / 412k
🇧🇩Country#8,593 / 15.0k
Per project
$848

$157 in the last 6 months

World#136,838 / 412k
🇧🇩Country#2,586 / 15.0k
Projects, last 6 months
3
0% fixed100% hourly
World#66,481 / 412k
🇧🇩Country#3,483 / 15.0k
Projects in all
6
33% fixed67% hourly
World#250,292 / 412k
🇧🇩Country#12,598 / 15.0k

Earnings, last 30 days

$5.4kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$5.2k$5.3k$5.4k$5.5kOct 9Oct 24Nov 8

Skill rankings: Top 26% in MongoDB

Ranked by MRR among everyone on Upwork with the skill.

  1. #174MLOps468 freelancers · 🇧🇩 #6Top 37%
  2. #482Vector Database1,142 freelancers · 🇧🇩 #10Top 42%
  3. #877Kubernetes3,351 freelancers · 🇧🇩 #16Top 26%
  4. #1,271Chatbot Development3,106 freelancers · 🇧🇩 #29Top 41%
  5. #1,295DevOps4,403 freelancers · 🇧🇩 #33Top 29%
  6. #1,665LangChain3,821 freelancers · 🇧🇩 #23Top 44%
  7. #1,704Retrieval Augmented Generation3,618 freelancers · 🇧🇩 #19Top 47%
  8. #1,906FastAPI4,337 freelancers · 🇧🇩 #30Top 44%