Passion fuels purpose.
A results-driven Full-Stack Developer and AI Engineer from Dhaka, Bangladesh — obsessed with shipping fast, reliable, and intelligent products.
Biography
Hi, I'm Md Mahadi Hasan— a Full-Stack Developer with AI Engineering expertise, experienced in building scalable, high-performance web applications across frontend, backend, and DevOps.
I thrive in startup and freelance environments, bringing adaptability, problem-solving, and deep ownership to every project. I integrate modern AI tooling—LLMs, RAG pipelines, vector search, and autonomous agents—to enhance automation and overall app intelligence.
Beyond shipping products, I also teach. Through Onnorokom Programming I've delivered live courses and tutorial series on JavaScript, React, and Full-Stack development to 200+ students.
My Skill Galaxy
Every technology I work with, orbiting around the core of full-stack engineering and AI.
Grouped by specialty
The stacks I use every day to build modern, intelligent products.
Frontend
Backend
Database
AI & LLM
DevOps & Tools
Languages
Work Experience
Back-End Engineer
Developing and maintaining scalable backend services using NestJS. Implementing CI/CD pipelines, integrating Auth.js, and managing production APIs.
Software Engineer
Developed and maintained web applications using the MERN stack and Next.js / NestJS. Led responsive UI work across devices and shipped automated deployments.
Full Stack Developer
Built an e-commerce platform frontend in Next.js and backend in Node.js. Integrated real-time features via WebSockets and designed schemas for MongoDB and PostgreSQL.
Web Development Instructor
Onnorokom Programming ↗Delivered live courses on JavaScript and React to 200+ students. Authored a Full-Stack React with NestJS tutorial series with 15 companion GitHub repos.
Freelance Developer
Delivered 10+ projects in React and custom Node.js APIs. Collaborated with clients end-to-end, translating requirements into tailored, responsive software.
Education & Training
B.Sc. in Computer Science & Engineering
Focusing on full-stack development, distributed systems and DevOps fundamentals.
Web Development Bootcamp
Intensive bootcamp providing practical exposure to modern web development workflows.
Web Design & WordPress Customization
Training focused on web design fundamentals and WordPress theme customization.
Services & expertise
From idea to production — I help teams ship fast, intelligent, and maintainable products across the stack.
Full-Stack Web Development
End-to-end web applications with Next.js, NestJS, and PostgreSQL — from pixel-perfect UI to scalable APIs.
- Next.js / React
- NestJS / Node
- PostgreSQL / MongoDB
AI & LLM Engineering
AI-powered features, chatbots, agents, and RAG pipelines using OpenAI, Claude, LangChain, and vector databases.
- RAG & Vector Search
- AI Agents
- LangChain / LangGraph
API & Backend Architecture
Scalable, secure backends with clean architecture, auth, real-time, and CI/CD pipelines ready for production.
- REST & WebSockets
- Auth.js / JWT
- Docker & CI/CD
Mentoring & Teaching
Live courses, tutorials, and 1:1 mentoring — helping 200+ students grow into full-stack developers.
- React & Next.js
- Node & NestJS
- Career guidance
Languages I speak
Comfortable collaborating across cultures and time zones.