Muthu Kumar
AI-Powered Full Stack Developer
With 9+ years of experience, I build scalable, high-performance web applications and intelligent agentic AI solutions. I specialize in Next.js, Node.js, and integrating LLMs to solve complex business problems.
About Me
Experience
I am a versatile Senior Software Engineer with profound expertise in designing, developing, and maintaining robust applications in the IT services industry. Recently, my focus has shifted heavily towards building AI-powered solutions using Large Language Models (LLMs).
I am highly proficient in modern JavaScript frameworks (React.js, Next.js, Node.js) and have extensive hands-on experience in both MERN and LAMP architectures. My passion lies in integrating intelligent capabilities—such as RAG pipelines, semantic search, and multi-tool agentic workflows—into scalable full-stack applications.
My Tech Stack
✨ AI & LLM Tools
- LangChain & LangGraph
- OpenAI APIs
- RAG & Vector Search
- Claude MCP / AI Agents
- Google Gemini
💻 Frontend
- React.js & Next.js
- HTML5 & CSS3 / SCSS
- JavaScript (ES6+)
- jQuery
- Bootstrap / Tailwind CSS
⚙️ Backend
- Node.js & Express.js
- Laravel / CodeIgniter(PHP)
- RESTful APIs
- WebSockets / Socket.io
🗄️ Database & DevOps
- MongoDB, MySQL
- Strapi & WordPress CMS
- Docker & K8S
- GitHub, Firebase
Professional Experience
Senior Software Engineer
NURTURIT India Private Limited
Spearheading the development of scalable real estate platforms for UK and Dubai markets. Designed and developed highly performant Next.js frontend applications and secure Node.js/Strapi backend APIs.
Software Developer
Velan Info Services
Developed diverse scalable applications including a MERN stack food ordering app, a WebRTC-powered medical consultation platform (TeleScrubs) using Vonage API, and a SaaS social networking platform (Rise Up) with live news feeds and Zoom API integration.
Web Developer
Daffodills Technologies
Began my professional journey building foundational web applications, focusing on responsive design, PHP, and database management to solve client business needs.
Research & Projects
🤖 AI Chatbot
A production-ready AI chatbot built with
Next.js, LangChain, and LangGraph.
Multi-model support · PDF RAG · Agentic workflows ·
Streaming responses
This project is a highly scalable, agentic AI Chatbot designed to handle complex queries using state-of-the-art Large Language Models. By leveraging LangChain and LangGraph, it transcends standard conversational bots, enabling true agentic workflows where the AI can intelligently route requests, utilize external tools, and fetch custom data via a Retrieval-Augmented Generation (RAG) pipeline.
🚀 Core AI Advantages & Best Features
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True Agentic Workflows: Utilizes LangGraph for stateful, multi-step reasoning, allowing the AI to autonomously decide when and how to use external tools.
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Intelligent PDF RAG: Upload documents directly to the interface. The system chunks, embeds, and stores the text for highly accurate, context-aware answers.
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Real-time Streaming: Delivers instantaneous, token-by-token streaming responses for a seamless user experience, avoiding long loading times.
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Multi-Model Flexibility: Hot-swap between Anthropic Claude and OpenAI GPT models seamlessly to balance cost, speed, and reasoning capabilities.
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🛠️
Extensible Architecture: Designed from the ground up to easily integrate APIs, custom databases, or web search capabilities without breaking existing logic.
Let's Build Something Great.
I'm currently available for new opportunities and collaborations. Whether you have a question or just want to say hi, I'll try my best to get back to you!
Say Hello