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USD
I will build a web3 dapp with solidity smart contracts and react
Blockchain and MERN Stack Developer
I build Web3 dApps and MERN stack applications using Solidity, React, Node.js, Express and MongoDB. My work includes smart contracts, wallet connections, REST APIs, database integration, authenticatio...
About this Gig
Need a Web3 dApp with a React interface and Solidity smart contracts? I can help turn a clearly defined idea into a working testnet prototype.
Services include:
- Solidity smart contract development
- React dApp interfaces
- MetaMask wallet connection
- Contract read/write integration
- Node.js, Express and MongoDB backend integration
Choose your scope:
BASIC: Connect MetaMask and display the wallet address in one existing React page.
STANDARD: One simple contract (up to 5 functions), one React page and wallet integration.
PREMIUM: One MVP workflow with up to 2 simple contracts (10 functions total), 3 React pages, 5 API routes and MongoDB.
You receive source code, basic functional testing and setup notes. Standard and Premium include testnet setup on one agreed EVM network.
Please message me with your requirements before ordering so we can confirm scope. Revisions cover the agreed features. Hosting, gas and third-party fees are excluded. Independent security audits and complex DeFi, bridges or exchange systems are outside these packages. Never share private keys or seed phrases.
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
FAQ
What does the $5 Basic package include?
MetaMask connection and wallet address display in one existing React page, with source code and setup notes. It does not include a new smart contract, a complete dApp, backend development or a custom UI design.
Which blockchain and deployment are included?
Standard and Premium include one agreed EVM testnet, such as Ethereum Sepolia. Please confirm your network before ordering. Mainnet deployment, gas, hosting, domains and paid third-party services are not included in these packages.
Is a security audit included, and what counts as a revision?
I include basic functional testing and source code. An independent security audit is not included; arrange one before using contracts with real funds. Revisions adjust the agreed features. New features, extra pages or a different workflow require a separate scope.
