Sandeep Singh

Full-Stack & AI Developer | Building & deploying AI-powered applications | React • FastAPI • PostgreSQL • Docker • LangChain • LangGraph

[Sandeep Singh @SinghNecoder]

Designing database schemas visually > writing raw SQL. An interactive visualizer powered by React Flow to map tables, link keys, and export to SQL or Mermaid. 👇

#WebDev #ReactFlow #Database

[Sandeep Singh @SinghNecoder]

Built a visual Database Schema Designer using React Flow!Drag-and-drop SQL/NoSQL tables, connect ER relationships, and export straight to SQL DDL. 🚀

#ReactFlow #Nextjs #BuildInPublic

[Sandeep Singh @SinghNecoder]

@_Shiva_iitp

[Sandeep Singh @SinghNecoder]

🚀 Working on Nexora AI
#NexoraAI #AI #FullStackDevelopment #CodeExecution #Sandbox #FastAPI #NextJS #BuildInPublic

[Sandeep Singh @SinghNecoder]

🚀 Working on Nexora AI — a feature that turns prompts into UI previews displayed directly on a canvas, with backend code execution running in a separate, isolated sandbox.
#NexoraAI #AI #FullStackDevelopment #CodeExecution #Sandbox #FastAPI #NextJS #BuildInPublic

[Sandeep Singh @SinghNecoder]

🚀 Introducing Nexora AI

#NexoraAI #FullStackDevelopment #FastAPI #NextJS #AI #WebDevelopment #BuildInPublic

[Sandeep Singh @SinghNecoder]

Introducing Nexora
⚡ LangGraph multi-agent routing
🛡️ Zero-token injection guardrails & PII redaction
📄 Multimodal RAG (PDF, DOCX & OCR)
🎨 Dynamic Generative UI over real-time SSE
Completely open-source 👇
https://t.co/nxkbt3tmQD

[Sandeep Singh @SinghNecoder]

@KESCoHQ Ok light aa ge area me, par har hamare poll ki light nahi aa rahi hai

[Sandeep Singh @SinghNecoder]

Yadav nagar Ahirwar me light nahi aa rahi hai raat se. Light kab tak aayegi
@KESCoHQ

[Sandeep Singh @SinghNecoder]

New AI agents include:

📝 Notes Agent
💼 Industry Insights Agent
🎯 Mock Interview Agent
🔎 Tavily Search
🤖 Hugging Face & Gemini
⚡ Real-time SSE streaming
Still building. Still learning. 🚀🤖

#LangChain #FastAPI #Python #BuildInPublic

[Sandeep Singh @SinghNecoder]

The new workflow:

🧠 Planner → 🔎 Research → ✍️ Generator → ✅ Evaluator → 🔄 Improver → 🚀 Finalizer

Different AI nodes handle different tasks, making the system more structured and intelligent.

[Sandeep Singh @SinghNecoder]

🚀 Big AI update to my ClassBuddy project!

I redesigned the AI system from simple AI generation into a modular Multi-Agent architecture using LangGraph. 🤖

#AI #LangGraph #AIAgents

[Sandeep Singh @SinghNecoder]

@shivangitech_97 https://t.co/UY5gqhpZrb

[Sandeep Singh @SinghNecoder]

@Ritanshu347 @X https://t.co/XvAFTXc5V2

[Sandeep Singh @SinghNecoder]

@saaayyyaaan https://t.co/okQxXj5jmG

[Sandeep Singh @SinghNecoder]

@insanekrishnaa https://t.co/okQxXj5jmG

[Sandeep Singh @SinghNecoder]

I wanted my portfolio to be more than a collection of projects.

So I built an AI-powered portfolio with RAG, LangChain & LangGraph, plus an admin panel and interactive UI.

🌐 https://t.co/okQxXj5jmG

What should I improve? 🚀

#AI #NextJS #LangGraph #Portfolio

[Sandeep Singh @SinghNecoder]

🚀 Just launched my new developer portfolio!

Built with Next.js + AI/RAG, LangChain, LangGraph, MongoDB, NextAuth, shadcn/ui, Cloudinary & Framer Motion.

🌐 https://t.co/okQxXj5jmG

Would love your feedback! 👀

#NextJS #AI #RAG #LangChain #WebDev

[Sandeep Singh @SinghNecoder]

Major upgrade to ClassBuddy!

Replaced the traditional JWT cookie auth with a custom OAuth 2.0 + PKCE authentication system.

🌐 Web → HttpOnly Secure cookies
📱 Android → Bearer tokens
🔐 PKCE + refresh-token rotation
One secure auth architecture for both Web & Mobile.

[Sandeep Singh @SinghNecoder]

🚀 Started learning NestJS today!

Explored:
• Modules
• Controllers
• Services
• REST API routes
• Project structure
• Basic backend architecture
Just getting started!
#NestJS #TypeScript #NodeJS #BackendDevelopment