I will do crypto payment integration

S
shahidmuneer17
S
shahidmuneer17
Shahid M
do crypto payment integration
Full Screen
do crypto payment integration
Full Screen
do crypto payment integrationdo crypto payment integration

About this gig

I architected a live crypto-to-fiat settlement engine handling high-volume USDT (ERC20/TRC20) and ETH monitoring via QuickNode, on AWS Lambda with Redis idempotency keys to eliminate double-spend risk. This is my day job, not a side experiment.

What I can build:

  • Crypto payment gateways USDT, USDC, BTC, ETH, BNB, and more
  • Deposit address generation, balance tracking, and withdrawal flows
  • Real-time blockchain monitoring and webhook confirmations
  • Custodial and non-custodial wallet systems
  • Crypto-to-fiat conversion and settlement logic
  • Exchange and P2P trading platform backends
  • MetaMask, WalletConnect, and Web3 login integration
  • Smart contract integration with Solidity and Web3.js/Ethers
  • Admin dashboards for transactions, balances, and reconciliation
  • Migrating or fixing an existing crypto integration that's unreliable

Chains: Ethereum, Tron, BSC, Polygon, and others on request. Stacks: Laravel, Node.js, Python, React, Vue, or added to your existing platform.

Handling real money means idempotency, ACID transactions, and reconciliation are non-negotiable. I build all three in by default.

  • Programming language

    • PHP

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Databases

  • Frontend framework

    • Angular
    • Flutter
    • Next.js
    • React.js
    • Vue.js

  • Backend framework

    • Django
    • Flask
    • Laravel
    • Next.js
    • Node.js

  • AI & low/no code builders

    • Lovable
    • Claude
    • Co.dev
    • Cursor
    • Softgen
    • Bubble
    • Adalo
    • Webflow

Get to know Shahid M

Shahid M

Fullstack AI Engineer

5.0(3)
  • FromPakistan
  • Member sinceNov 2016
  • Last delivery3 years

  • Languages

    English
Senior Full Stack Engineer & Technical Lead with over 10 years of experience architecting secure fintech, banking, and AI-driven SaaS solutions. Specialist in hybrid cloud architecture, Web3/blockchain integration, and AI engine orchestration. Proven track record of bridging legacy systems with modern serverless infrastructure, building high-throughput USDT transaction monitoring systems, and developing autonomous desktop AI agents. Experienced team leader focused on production performance, API efficiency, and banking-grade security.

Related tags