I will build crypto exchange app crypto wallet app fintech app web3 dapp smart contract

Germany

I speak German, English

Full Stack Mobile App Developer

I’m a professional Mobile App & Fintech Developer specializing in Flutter, Android/iOS, crypto wallets, exchange platforms, and Web3 dApps. I help startups and businesses turn ideas into secure, scala...
About this Gig

Are You Trying to build a crypto exchange, wallet app, or Web3 dApp but worried about security risks, failed smart contracts, or poor scalability? In blockchain, one flaw can cost funds and user trust thats why you need a developer who understands real-world fintech and Web3 architecture.


I build secure crypto exchange apps, crypto wallets, fintech apps, Web3 dApps, and smart contracts designed for startups and businesses that need reliable, production-ready solutionsnot experiments.


What I Can Build:

  • Crypto exchange apps (centralized or P2P)
  • Crypto wallet apps (multi-coin, send/receive, private keys)
  • Web3 dApps (DeFi, NFT, staking platforms)
  • Smart contracts (Solidity, secure & optimized)
  • Fintech apps (payments, transfers, dashboards)


Key Features Included:

  • Secure smart contract development & auditing-ready code
  • Blockchain & wallet integrations (Web3, APIs)
  • Fiat/crypto payment gateways
  • Clean UI/UX for mobile & web
  • Scalable backend (Node.js, Firebase, or custom)


Built for performance, security, and growth. Pricing depends on features & complexity.


...MESSAGE ME BEFORE ORDERING!!! To Plan Your Web3 or Fintech App Project The Right Way.

Wallet Type:

Online (virtual) wallet

Operating system:

iOS

Android

Windows

Supported Features:

2FA

Biometric authentication

Programming Language:

Flutter

Other Cryptocurrencies & Tokens Services I Offer