I will develop and audit kiwi challenge and web3 nz solidity smart contracts
Senior Full Stack and Web3 Developer, Nextjs, Nodejs, Solidity
About this Gig
Build, improve, or audit production-ready Solidity smart contracts for Kiwi Challenge and Web3-NZ projects.
For Kiwi Challenge, I can support token and challenge logic, presale flows, staking and vault contracts, wallet integrations, and secure PHP/Next.js Web3 connections. For Web3-NZ, I can help build enterprise Web3 foundations, intelligent infrastructure workflows, company and collaboration features, and polished customer-facing experiences.
What you get:
Solidity smart contract development for EVM networks
Contract architecture, upgrades, integrations, and clear documentation
Security-focused review, vulnerability scanning, and practical audit findings
Frontend and backend integration with wallet and blockchain flows
Clean, maintainable delivery with a clear handoff
Share your requirements, chain, repository, and current contract status. I will review the scope and recommend the right implementation or audit plan for Kiwi Challenge, Web3-NZ, or a related Web3 product.
Tools:
Remix
•
Truffle
•
OpenZeppelin
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
My Portfolio
FAQ
What information do you need to start?
Please send the target chain, repository or specification, contract scope, desired timeline, and budget. Include existing tests or integrations if available.
Do you work with Arbitrum and other EVM chains?
Yes. I build and review Solidity for Ethereum, Arbitrum, and compatible EVM networks. Tell me your target chain and deployment constraints.
Can you audit existing Solidity contracts?
Yes. I review architecture, access control, business logic, reentrancy, oracle and upgrade risks, then provide actionable findings and remediation guidance.

