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mahmudulmkdev

Mahmudul Hasan

@mahmudulmkdev

AI Agent and Automation Engineer, LangChain, LangGraph, MCP and RAG

Bangladesh
Inglés
Parte de la información aparece en idioma inglés.
Sobre mí
I build custom AI agents that replace manual work, from AI sales outreach to support chatbots. Not prompt wrappers real agentic systems with memory, tool-calling, and multi-step reasoning. 4+ years full-stack, now focused on LangChain, LangGraph & MCP. I build agents that take action: qualify leads, send emails, answer tickets, pull live data, integrate with your stack. → AI SDR agents — lead research, personalized cold emails → Custom AI chatbots — trained on your data, with escalation → Multi-agent systems (LangGraph & MCP) → RAG pipelines for grounded AI answers... Lee más

Habilidades

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mahmudulmkdev
Mahmudul Hasan
desconectado • 
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Revisa mis servicios

Sitios web personalizados
I will build your saas mvp with nextjs, nodejs, auth and payments
DeUSD 150 / proyectoMás información
Sitios web personalizados
I will develop a full stack nextjs web application with database and API
DeUSD 120 / proyectoMás información

Porfolio

Experiencia laboral

Self_Employed

AI Automation Engineer

Self Employed • Trabajador autónomo

Jan 2026 - Present • 8 mos

Designed and built an AI SDR (Sales Development Rep) automation system — an autonomous agent that researches leads, generates personalized cold emails using LLMs, and handles automated sending and follow-up sequences, replacing manual outbound sales work. Built production AI chatbots for client companies using LangChain and LangGraph, trained on company-specific data (docs, FAQs, order/ticket systems) to handle customer support, answer product questions, and escalate complex queries to human agents. Architected multi-tenant AI agent infrastructure with tool-calling, retrieval-augmented generation (RAG), and Model Context Protocol (MCP) integrations to connect agents to external tools, databases, and APIs. Stack: Next.js, FastAPI, LangChain, LangGraph, PostgreSQL, ChromaDB, OpenAI/Groq/Gemini APIs, Redis, Docker, AWS.

Full Stack Developer

LeoPhoenix Tech • Tiempo completo

Dec 2021 - Present • 4 yrs 9 mos

Developed and maintained full-stack web applications using React, Next.js, Node.js, and Express, handling both frontend UI and backend logic. Designed and maintained REST APIs and tRPC endpoints, ensuring clear API contracts and smooth data flow between frontend and backend. Implemented JWT-based authentication and role-based access control, including admin, user, and guest permission layers. Built database structures using MongoDB and PostgreSQL, applying Prisma ORM for relational data modeling and Mongoose for document-based collections. Integrated Firebase for authentication, notifications, and real-time data updates in key modules. Implemented payment workflows, including order processing, verification, and status management with third-party payment gateways. Built reusable UI components using Tailwind CSS, Shadcn UI, Chakra UI, Bootstrap, and MUI, ensuring design consistency and fast development. Used Redux Toolkit for state management, improving app performance and reducing bugs. Improved app performance using: code splitting lazy loading API optimization cache strategies Used Git, Docker, AWS, Vite, and Postman for development, testing, deployment, and version control. Worked closely with designers and product managers to turn requirements into functional features with clean UX and stable performance.