I will develop secure staking, presale, vesting, and rewards smart contracts

M
michael_isaac9
M
michael_isaac9
Michael Isaac

About this gig

Are you launching a Web3 project and need a secure, professional, and fully functional staking or token presale system?

Youre in the right place I build battle-tested smart contracts that are clean, optimized, and ready for mainnet deployment.

I specialize in:


Staking Contracts

  • Single / multi-reward staking
  • Claim, lock, and penalty systems
  • APR / APY models
  • Custom reward logic
  • Gas-optimized Solidity code


Token Presale (ICO/IDO) Contracts

  • Soft cap / hard cap
  • Whitelisting
  • Vesting & locking
  • Liquidity auto-add
  • Refund logic
  • Secure fund handling


Why Choose Me?

  • 3+ years Solidity experience
  • Best coding practices (OpenZeppelin)
  • Full testing on Hardhat/Remix
  • Error-free mainnet deployment
  • Fast delivery & clean communication


Whether youre building a new project or upgrading an existing one, I deliver secure, scalable, and professional Web3 smart contracts tailored to your needs.

Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Michael Isaac

Michael Isaac

SENIOR WEB3 DEVELOPER

  • FromColombia
  • Member sinceDec 2025
  • Avg. response time13 hours
  • Languages

    English, French, Spanish, German
I’m a senior Web3 developer specializing in smart contracts, decentralized apps, NFT systems, ERC20 tokens, DeFi protocols and secure blockchain architecture. I build production-ready Web3 solutions using Solidity, Ethers, Web3 libraries and modern front-end frameworks like React and Next. If you need a secure smart contract or a complete Web3 application, you’re in the right place.