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HoldBridge

Crypto escrow and peer-to-peer trading, live at holdbridge.co.

Role
CTO & co-founder
Organisation
HoldBridge
Type
Full-stack
Status
Live
HoldBridge, screenshot 1 of 4
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Overview

HoldBridge lets buyers and sellers trade crypto and Web3 services without trusting each other: funds sit in escrow until both sides are satisfied. As co-founder and CTO I own the architecture, lead the engineering team and set the security model, from multi-chain wallet generation to key protection with AWS KMS.

What it does

  • Automatic multi-chain wallet generation for BTC, ETH and BNB
  • Private keys encrypted and protected through AWS KMS
  • Escrow transactions that hold funds until both parties confirm
  • Peer-to-peer buy and sell listings for crypto and Web3 services
  • Email verification, password reset and rotating JWT refresh tokens
  • Device tracking with login notifications
  • Admin dashboard with activity logging

Built with

  • Node.js
  • Express
  • TypeScript
  • React
  • Prisma
  • MySQL
  • AWS KMS
  • JWT
  • Argon2
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