🚀 I'm a passionate Full-Stack Developer with a strong focus on building scalable, real-time applications and exploring the exciting frontiers of Web3 and DevOps. My journey involves mastering modern software engineering from end-to-end, creating robust solutions, and contributing to open-source projects.

My expertise spans across a diverse range of technologies, enabling me to tackle complex challenges across the full development lifecycle.

Here are some of my key projects that showcase my skills and passion for building innovative solutions:

• Exchange Platform (Real-Time Crypto Orderbook)

  A high-performance, real-time trading system built to handle low-latency order execution at scale. The platform combines modular, event-driven architecture with efficient queuing, real-time communication, and scalable infrastructure. It features WebSocket streaming for 100+ crypto pairs, reduced latency by 20%, and improved ingestion rate by 300 msg/sec.

  • Tech Stack: Next.js, React, Tailwind CSS, Node.js, Express, PostgreSQL, Redis, WebSockets (Socket.io).
  • Repository: yuvrajnode/exchange

• Doodle Space (Collaborative Whiteboard)

  A blazingly fast, intuitive, and collaborative digital canvas for your ideas. This multi-user Excalidraw-style platform supports 500+ concurrent users with sub-100ms latency, offering an infinite canvas, shape tools, and multi-user synchronization.

  • Tech Stack: Next.js, Rough.js, Turborepo, Prisma, WebSockets, Express.js, TypeScript, Zustand.
  • Repository: yuvrajnode/doodle-space

• Contest Tracker Application

  A Next.js web application that aggregates competitive programming contests from platforms like Codeforces, CodeChef, and LeetCode. Users can explore upcoming and past contests, filter by platform, bookmark favorites, and access solution links for completed contests.

  • Tech Stack: React, TypeScript, Next.js App Router, Tailwind CSS, shadcn/ui, date-fns, Lucide React.
  • Repository: yuvrajnode/Contest-tracker

• Solana Web3 DApp & Launchpad

  A comprehensive Solana Web3 DApp for wallet management, SOL transfers, and airdrops, coupled with a Token Launchpad built with React and Vite for creating SPL tokens. Designed with a clean UI and wallet-ready architecture for future Web3 integrations, achieving a 99.99% transaction success rate.

  • Tech Stack: React, Vite, Solana Web3.js.
  • Repository: yuvrajnode/Solana-Dapp and yuvrajnode/Solana-Launchpad

• Connect Four Game

  A real-time multiplayer Connect Four game built with Node.js, WebSockets, React, and PostgreSQL. It supports PvP, bot gameplay, reconnection handling, and a persistent leaderboard.

  • Tech Stack: Node.js, WebSockets, React, PostgreSQL.
  • Repository: yuvrajnode/Connect-Four-Game

• p5.js — Improved documentation clarity for Vector.fromAngle() for better contributor usability.
• n8n — Enhanced frontend PR with timezone-aware date formatting and maintainer feedback iterations.

• 💬 Ask me about Next.js, WebSockets, DevOps, Solana Web3, Data Structures & Algorithms, and Object-Oriented Programming
• 🚀 Love building real-time scalable systems
• 🌍 Active open-source contributor in p5.js & n8n
• 🎯 Strong foundations in DSA, Computer Networks & OOP

📧 **yuvrajsingh9027249999@gmail.com**