I will crypto payment integration, API integration, redevelop web3 dapp, crypto wallet

United Kingdom

I speak English, Spanish, Italian, French, German, Arabic

BLOCKCHAIN DEVELOPER

I build secure, scalable crypto exchange platforms, trading systems, Web3 dApps, and blockchain applications for startups and businesses. From idea to deployment, I deliver high-performance solutions ...
About this Gig

Struggling to integrate crypto payments, fix a broken wallet, or launch a scalable Web3 product? You need a blockchain developer who understands both the tech and the business impact.


I specialize in crypto payment integration, API integration, and full-scale web3 dapp development tailored for performance, security, and growth. Whether you're building a crypto exchange, fixing a crypto wallet, or connecting an exchange API, I deliver clean, reliable solutions.


From crypto payment gateway setup to advanced blockchain integration, I ensure your platform runs smoothly, securely, and efficiently.


What I offer:

  • Crypto payment gateway integration (BTC, ETH, USDT & more)
  • API integration for crypto platforms & exchanges
  • Crypto wallet fix, redesign, or full redevelopment
  • Web3 dapp development, bug fixing & optimization
  • Crypto exchange platform development
  • DeFi integration & smart contract implementation


Technologies:

Solidity, Web3.js, React, Node.js, REST APIs, Smart Contracts, Ethers.js


Why choose me:

  • Security-first development approach
  • Clean, scalable, production-ready code
  • Fast communication & on-time delivery
  • Experience with complex blockchain systems


Purpose:

Collectibles

DeFi

Information management systems (IMA)

Programming language:

Dart

Java

Kotlin

PHP

Python

Swift

Node.js

React

Expertise:

APIs

Backend

Blockchain development

Built-in payments

Keep your assets and information safe

Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.