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© 2026 Sayan Dey . All rights reserved.

Full-Stack Developer • AI & Systems

Sayan Dey
Building scalable systems & AI applications

I build real-world applications using MERN, Next.js, and modern AI tools — focusing on backend systems, agent-based workflows, and real-time features.

🚀 View Projects✍️ Read Blogs🤝 Connect With Me
Sayan Dey
🚀 View Projects✍️ Read Blogs🤝 Connect With Me

Proof of Work

Demonstrating practical experience in building scalable, intelligent and production-grade systems.

Full-Stack Systems

Building scalable applications using Next.js, Node.js and modern databases.

AI Engineering

Developing AI agents, LLM tools and intelligent automation systems.

Real-Time Applications

Experience with WebSockets, Redis and live communication systems.

DevOps & Infrastructure

Dockerized deployments, Linux environments and scalable backend setup.

Full-Stack Systems

Building scalable applications using Next.js, Node.js and modern databases.

AI Engineering

Developing AI agents, LLM tools and intelligent automation systems.

Real-Time Applications

Experience with WebSockets, Redis and live communication systems.

DevOps & Infrastructure

Dockerized deployments, Linux environments and scalable backend setup.



Tech Stack

Technologies and tools I use to design , build and scale modern applications.

Languages

JavaScriptTypeScriptPythonJavaC

Frontend

Next.jsReactTailwind CSSShadcn/UIHTMLCSS

Backend

Node.jsExpressMongoDBPostgreSQLRedisREST APIsJWT Auth

AI / ML

LangChainLangGraphRAGAI AgentsPrompt EngineeringGemini APIGroq APIOpenAI-style API Design

DevOps & Tools

DockerLinuxNginxGitVercel


Let’s Connect 👋

Whether you have an idea, an opportunity, or just want to network and chat — drop your email and let’s connect.

AI Lab

Experimental AI systems, intelligent agents and ongoing research explorations.

AI Code Review System (Demo)
experimentbuilding
AI Code Review System (Demo)
An AI-powered tool that reviews pull requests and provides feedback on code quality and security.
aicode-review
GitHubLive Demo
RAG Knowledge Base (Demo)
experimentidea
RAG Knowledge Base (Demo)
An AI system that answers questions using a custom knowledge base powered by RAG.
ragknowledge
GitHub
AI Tool Platform (Demo)
experimentbuilding
AI Tool Platform (Demo)
A unified AI platform combining chat assistants, image generation, and developer productivity tools.
aiplatform
GitHubLive Demo
AI Code Review System (Demo)
experimentbuilding
AI Code Review System (Demo)
An AI-powered tool that reviews pull requests and provides feedback on code quality and security.
aicode-review
GitHubLive Demo
RAG Knowledge Base (Demo)
experimentidea
RAG Knowledge Base (Demo)
An AI system that answers questions using a custom knowledge base powered by RAG.
ragknowledge
GitHub
AI Tool Platform (Demo)
experimentbuilding
AI Tool Platform (Demo)
A unified AI platform combining chat assistants, image generation, and developer productivity tools.
aiplatform
GitHubLive Demo
Explore AI Lab


Latest Blogs

Fresh posts about full-stack development, AI/ML experiments, and what I’m learning.

How to Build a Chat App with WebSockets (Demo)

Mar 14, 2026 • 1 min read

How to Build a Chat App with WebSockets (Demo)
Real-time messaging made easy using WebSockets, Node.js, and a simple frontend UI. Build your own chat app today!
Mastering Git and GitHub for Collaboration (Demo)

Mar 14, 2026 • 1 min read

Mastering Git and GitHub for Collaboration (Demo)
Learn how to use Git and GitHub to manage code versions, collaborate with teams, and contribute to open source.
Building a Personal Blog with Markdown and Next.js (Demo)

Mar 14, 2026 • 1 min read

Building a Personal Blog with Markdown and Next.js (Demo)
Create a fast and customizable personal blog using markdown files and Next.js file-based routing.
How to Build a Chat App with WebSockets (Demo)

Mar 14, 2026 • 1 min read

How to Build a Chat App with WebSockets (Demo)
Real-time messaging made easy using WebSockets, Node.js, and a simple frontend UI. Build your own chat app today!
Mastering Git and GitHub for Collaboration (Demo)

Mar 14, 2026 • 1 min read

Mastering Git and GitHub for Collaboration (Demo)
Learn how to use Git and GitHub to manage code versions, collaborate with teams, and contribute to open source.
Building a Personal Blog with Markdown and Next.js (Demo)

Mar 14, 2026 • 1 min read

Building a Personal Blog with Markdown and Next.js (Demo)
Read All Blogs


Create a fast and customizable personal blog using markdown files and Next.js file-based routing.

Featured Projects

Selected projects demonstrating real-world engineering and product development.

Wanderlust — Airbnb Clone
fullstackcompleted
Wanderlust — Airbnb Clone
A full-stack web application inspired by Airbnb where users can explore, create, and review travel listings.
nodejsexpressmongodbejsmongoose
GitHub
Personal Blog Platform (Demo)
fullstackcompleted
Personal Blog Platform (Demo)
Markdown-based blogging platform with admin moderation.
nodejsjwtmongodbmarkdown
GitHubLive Demo
Real-time Chat Application (Demo)
fullstackcompleted
Real-time Chat Application (Demo)
Scalable real-time chat system using WebSockets and Redis.
nextjssocketiotypescriptredis
GitHubLive Demo
Wanderlust — Airbnb Clone
fullstackcompleted
Wanderlust — Airbnb Clone
A full-stack web application inspired by Airbnb where users can explore, create, and review travel listings.
nodejsexpressmongodbejsmongoose
GitHub
Personal Blog Platform (Demo)
fullstackcompleted
Personal Blog Platform (Demo)
Markdown-based blogging platform with admin moderation.
nodejsjwtmongodbmarkdown
GitHubLive Demo
Real-time Chat Application (Demo)
fullstackcompleted
Real-time Chat Application (Demo)
Scalable real-time chat system using WebSockets and Redis.
nextjssocketiotypescriptredis
GitHubLive Demo
View All Projects