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Fiverr Pro
English
$
USD
I will develop web3 defi dapp with solidity smart contracts, build crypto wallet, rwa
Blockchain Payment Developer for Stablecoin APIs and Web Automation
I build secure blockchain payment systems for businesses that need stablecoin payments, automated payouts, crypto payment gateways, and reliable transaction tracking. I work with USDC, USDT, payment A...
About this Gig
A DeFi product works only when its contract logic, wallet flow, interface and on-chain data work together. I develop Solidity smart contracts and Web3 dApps for a focused MVP or a new protocol module.
Your build can include:
- Custom Solidity contract logic
- React or Next.js dApp interface
- Wallet connection and transaction flows
- Role-based access and emergency controls
- Contract events and on-chain data display
- Hardhat or Foundry unit tests
- EVM testnet deployment and verification
- Full source code, setup guide and documentation
Work is scoped in phases so you can validate the core journey before adding modules. I can build from your specification or review current contracts.
This is software development only. It excludes trading bots, signals, token sales, crypto buying or selling, custody, account access and profit guarantees. Development testing is not a formal security audit. Independent review is recommended before mainnet use.
Send your protocol goal, EVM network and required user flow before ordering. I will identify the package and flag missing decisions early.
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
FAQ
1. Can you work with an existing smart contract?
Yes. I can review the repository and scope an integration, extension or frontend connection.
2. Which networks are supported?
The gig targets EVM-compatible networks such as Ethereum, Base, Polygon, Arbitrum and BNB Chain.
3. Does the gig include wallet integration?
Yes. Standard and Premium can include wallet connection, transaction states and contract interaction.
4. Do you build trading bots or execute trades?
No. This gig excludes trading bots, signals, crypto purchasing, selling, account access and profit guarantees.
5. Is mainnet deployment included?
The packages cover testnet deployment. Mainnet deployment must be scoped separately after independent review.
6. Is this a formal security audit?
No. Unit tests and development checks are included, but they do not replace an independent audit.
7. Will I receive the source code?
Yes. You receive the completed source code, tests and setup documentation, subject to disclosed third-party licenses.
