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English
$
USD
I will develop secure solidity smart contracts with foundry tests
Blockchain Developer, Sysadmin and Java Expert
I am a Senior Dev and Sysadmin obsessed with clean code and high performance. I don't just patch problems; I architect solutions that scale.
My Expertise:
- Blockchain: Smart Contracts and Tokens on ...
About this Gig
Need a secure Solidity smart contract that is tested, gas-efficient, and ready to deploy?
I build custom smart contracts for Ethereum and EVM-compatible networks using clean, maintainable Solidity.
What I can deliver:
ERC20/BEP20 tokens
ERC721/ERC1155 NFT contracts
Staking, vesting, presale and fee logic
DeFi, DAO and upgradeable contracts
Bug fixes, testing and gas optimization
Every delivery can include:
Clean source code
Foundry/Hardhat unit tests
Security-focused design and access control
Gas optimization
Deployment instructions
Contract verification on Etherscan/BscScan
Supported networks: Ethereum, Base, Polygon, BSC, Arbitrum, Avalanche and other EVM chains.
I never need your private keys. Deployment can be completed from your own wallet so you keep full ownership.
Please message me before ordering with your requirements or whitepaper. I will review the scope and recommend the correct package.
Tools:
Remix
•
Solidity Compiler
•
Web3.js
Programming Language:
Solidity
Industry:
Finance
•
Gaming
•
Entertainment
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
FAQ
Which blockchains do you support?
I support Ethereum, Base, Polygon, BSC, Arbitrum, Avalanche and other EVM-compatible networks. Message me if you need a specific chain.
Do you test every smart contract?
Yes. I can include automated Foundry or Hardhat unit tests, edge-case testing and security-focused checks based on the selected package and scope.
Can you fix or improve an existing smart contract?
Yes. I can debug errors, add features, write tests, optimize gas and improve existing Solidity code. Please share the repository or relevant code before ordering.
Can you deploy and verify the contract?
Yes. I can provide deployment instructions or deploy and verify the contract on the agreed network. I will never ask for your private key or seed phrase.
Do you also build Web3 frontend integrations?
Yes, frontend integration with wallets and smart contracts can be included as a custom offer after scope review. It is not included in the standard contract packages.
