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I will build secure multichain crypto wallet exchange app, smart contract integration
Blockchain Developer, Crypto Wallet, Smart Contract Expert Agency
AT GDIT CLUB (Google Developer IT Club) We Offer: End-to-end mobile & web crypto wallet (custodial or non-custodial), multi-chain support, secure key management, fiat on/off-ramp integrations, and opt...
About this Gig
Looking to launch a secure, user-friendly, and scalable crypto wallet or exchange app that stands out in today's competitive Web3 market? You're in the right place.
We're a professional Blockchain Developer with proven expertise and specialize in designing and developing crypto wallet app development, multichain wallet integration, smart contract deployment, exchange solutions, and businesses adding crypto payments.
I will build a custom crypto wallet app (Web, Android, iOS) that supports multiple blockchains and tokens, including BTC, ETH, BNB, USDT, Polygon, and more. Whether you need a multichain wallet, in-app exchange, or smart-contract integration (DeFi, NFTs, staking), I deliver high-quality, production-ready solutions tailored to your needs.
What I deliver:
- Non-custodial or custodial wallets (your choice)
- Multi-chain support (Ethereum, BSC, Polygon, Solana, Bitcoin & more)
- Send/receive tokens, transaction history, QR payments
- NFT gallery + DeFi integrations (staking, swaps, DEX)
- Fiat on/off-ramp & KYC/AML integration for compliance
- Secure key management with biometric unlock & hardware wallet options
- Full source code, APK/IPA builds, and clean documentation
CONTACT US!
Wallet Type:
Mobile digital wallet
Operating system:
iOS
•
Android
•
Windows
Programming Language:
Python
FAQ
Which blockchains do you support?
I work with Ethereum, Binance Smart Chain (BSC), Polygon, Solana, Tron, and other major EVM-compatible and non-EVM chains. If you need support for a specific blockchain, please let me know.
Can you integrate multiple cryptocurrencies in one wallet?
Yes. I can build multichain wallets supporting BTC, ETH, BNB, USDT, Polygon, and custom ERC-20/BEP-20 tokens.
Will my wallet be secure?
Absolutely. I follow industry best practices with encryption, private key management, seed phrase backup, and optional 2FA. Security is my top priority.
Do you provide a mobile app or just web wallets?
I provide both. I can build wallets for Web, Android, and iOS using React Native, Flutter, or custom frameworks.
Can you integrate a crypto exchange into the wallet?
Yes. In the Premium package, I integrate exchange/swap functionality so users can swap tokens inside the wallet app.
Do you also develop and integrate smart contracts?
Yes. I can develop and deploy custom smart contracts for DeFi, NFTs, staking, or token creation, and integrate them into your wallet.
Do I need to provide hosting or a server?
I can recommend and set up hosting for you. For mobile apps, I will provide deployment support to App Store and Google Play if required.
Will I get full source code?
Yes. All packages include full source code, documentation, and deployment assistance.
Can you help launch my wallet under my brand name?
Yes. I offer white-label wallet solutions with your branding, logo, and custom features.
What if I need extra features not listed in the packages?
Please contact me before ordering. I can create a custom offer based on your exact requirements.
