0xsagor (Sagor) · GitHub
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0xsagor/README.md

Hi there 💖 , I'm Sagor

Backend & Full-Stack Developer | System-Focused Engineer

👨‍💻 About Me

  • 🔹 Passionate about building scalable backend systems
  • 🔹 Focused on REST APIs, Authentication, Security & System Design
  • 🔹 Love working with clean architecture & best practices
  • 🔹 Always learning advanced backend & automation concepts

🧠 Tech Stack

Languages

  • JavaScript (ES6+)
  • TypeScript
  • Python

Backend

  • Node.js
  • Express.js
  • REST API
  • JWT / OAuth2
  • WebSockets

Database

  • MongoDB
  • PostgreSQL
  • Redis

Tools & DevOps

  • Git & GitHub
  • Docker (basic)
  • Linux
  • Postman

🚀 Featured Projects

Advanced systems & real-world backend projects

  • 🔐 Auth System Pro – JWT, Refresh Token, Role-Based Access
  • 🌐 REST API Boilerplate – Production-ready backend structure
  • ⚡ Realtime Chat App – WebSocket based system
  • 📊 Analytics Dashboard API – Data-driven backend
  • 🔎 Search & Filter Engine – Optimized query handling

👉 More advanced repositories coming soon…

📈 GitHub Stats

📫 Connect With Me

⭐ Building advanced systems one repository at a time

Popular repositories Loading

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    A small collection of mini HTML and CSS projects for basic frontend practice.

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  2. erc4626-yield-vault erc4626-yield-vault Public

    A compliant implementation of the ERC-4626 "Tokenized Vault" standard. Allows users to deposit ERC-20 assets to receive "Shares" that automatically increase in value as the vault generates yield.

    JavaScript 9

  3. trustless-p2p-escrow trustless-p2p-escrow Public

    A secure smart contract for peer-to-peer transactions. The buyer deposits ETH, which is locked until they confirm delivery. If a disagreement occurs, a designated Arbiter can intervene to resolve t…

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  4. cross-chain-token-bridge cross-chain-token-bridge Public

    Forked from 0xkabbo/cross-chain-token-bridge

    A bidirectional bridge protocol. It allows users to lock ERC-20 tokens on a "Source Chain" to mint equivalent Wrapped Tokens on a "Destination Chain." Includes the smart contracts and the off-chain…

    JavaScript 5 2

  5. decentralized-nft-marketplace decentralized-nft-marketplace Public

    Forked from sujon12210/decentralized-nft-marketplace

    A fully functional NFT Marketplace smart contract. Allows users to list ERC-721 tokens for sale, cancel listings, and update prices. Includes a platform fee mechanism for the marketplace owner.

    JavaScript 4 3

  6. gasless-meta-transaction-relayer gasless-meta-transaction-relayer Public

    Forked from sujon12210/gasless-meta-transaction-relayer

    A complete EIP-2771 compatible meta-transaction implementation. Allows a "Relayer" to pay gas fees on behalf of users, enabling a frictionless onboarding experience for new crypto users.

    JavaScript 4 1