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Fiverr Pro
Nederlands
$
USD
I will develop solidity smart contract and dapp backend integration
From database design to deployment, one engineer who owns it
I am a Senior Software Engineer with 4+ years of experience building backends in NestJS, Node.js and Go, and frontends in Next.js and React. I have worked on DeFi, trading, fintech and marketplace pro...
Over deze dienst
Need a smart contract and the backend that connects it to your app? I am a Senior Software Engineer with 4+ years of experience building the backend side of DeFi and Web3 products on EVM chains.
What I can build for you:
- ERC-20 and BEP-20 token contracts built on OpenZeppelin
- Custom Solidity contracts for your business logic
- Deployment and verification on testnet and mainnet
- Wallet login with signature verification
- Backend listeners that track on-chain events
- Transaction confirmation and status tracking
- Integration with Ethers.js in NestJS or Node.js
How I work:
- Scope and timeline agreed before I start
- Contracts tested on a testnet before any mainnet deployment
- Clear documentation of every function
- Source code delivered through GitHub
Good to know: I do not sell security audits. If your contract will hold significant funds, I recommend an independent audit before mainnet, and I will prepare the code for it.
Please message me before ordering so I can confirm the scope and give you an exact quote.
Bescherm je bezittingen en informatie
Diensten op het gebied van cryptocurrency zijn uitsluitend gericht op development en programmering. Deel nooit gevoelige informatie of privésleutels met anderen.
Mijn portfolio
Veelgestelde vragen
• Which blockchains do you support?
EVM chains such as Ethereum, BNB Smart Chain, Polygon, Arbitrum and Base. Ask me about others before ordering.
• Will you deploy to mainnet?
es, after you have tested it on a testnet. You pay the gas fees and keep ownership of the deployer wallet.
• Is a security audit included?
No. I write tests and follow OpenZeppelin standards, but an independent audit is a separate service from a specialist firm.
• Can you connect the contract to my website or backend?
Yes. The Premium package covers wallet login, event listeners and transaction tracking in your backend.
