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$
USD
I will develop smart contracts for defi, tokens, and nft apps
Helping to decentralize your vision and empower your business
With over 5+ years of experience, I am a Blockchain Developer worked on different projects like DeFi, ICO, Staking, NFT Marketplaces, Miniting Bots/Pages.
My skills include smart contracts developme...
About this Gig
I Will Be Your Expert Solidity Developer | DeFi, NFT, DApps, Tokens
Are you launching the next big DeFi protocol, building a killer NFT project, or need a bulletproof smart contract for your blockchain startup?
You're in the right place. With 5+ years of real-world blockchain development experience, I specialize in writing secure, gas-optimized, and battle-tested smart contracts using Solidity.
What I Can Build For You:
- Custom Smart Contracts (ERC20, BEP20, ERC721, ERC1155)
- Full DApps with Web3 Integration (React.js / Next.js)
- NFT Marketplaces, Staking, Airdrops, Royalties
- DAO Contracts, Governance Logic, Token Vesting
- DeFi Protocols: Yield Farming, Liquidity Pools, Staking
️ Security & Optimization Come First:
- Manual Code Audits (line-by-line analysis)
- Unit Testing (Hardhat, Truffle)
- Secure against reentrancy, overflow, and known attack vectors
- ️ Use of battle-tested libraries like OpenZeppelin
- Simulated attack deployments to verify security
Deliverables:
- Clean, commented .sol smart contract file(s)
- Deployment guide & usage instructions
- Free post-delivery support
BONUS:
- Free Code Review (for existing contracts)
- Advice on gas optimization & upgradeability
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 blockchain networks do you support?
I support major EVM-compatible networks including Ethereum, Binance Smart Chain (BSC), Polygon, Arbitrum, Optimism, Base, and Avalanche. If you need contracts on a specific chain, feel free to message me.
Can you help deploy the smart contract to the blockchain?
Yes! I can handle deployment on testnets or mainnets. I will provide a full deployment guide or perform the deployment for you upon request.
Do you provide smart contract audits?
I offer manual code review, logic verification, and tests for known vulnerabilities. While I’m not a third-party audit firm, my audits follow best practices and industry standards to ensure security and reliability.
Will you provide unit tests with the smart contract?
Yes. All smart contracts come with unit testing using frameworks like Hardhat or Foundry, covering expected behaviors and edge cases.
Can you integrate the smart contract with my frontend (React, Next.js, etc.)?
Absolutely. I offer full Web3 or Ethers.js integration with frontend applications (React, Next.js, etc.) so your DApp is ready to launch.
Will you support me after the order is completed?
Yes. I offer free support for a limited time after delivery to fix bugs or guide you with integration and deployment.
Can you create custom tokens like ERC20, ERC721, ERC1155, or BEP20?
Yes! I can create custom fungible and non-fungible tokens with minting, burning, pausing, and advanced features like royalties or metadata.
Reviews
1 reviews for this Gig
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Rating Breakdown
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shumaila_ahsan9
Pakistan
Shoaib was recruited for a smart contract project, and I'm quite pleased with the results! His knowledge of Ethereum, Solidity, and blockchain development is unparalleled. He wrote excellent code, communicated effectively, and solved challenging problems. If you need a top-tier smart contract develo
Up to $50
Price
2 weeks
Duration
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
Most relevant
S shumaila_ahsan9
Pakistan
Shoaib was recruited for a smart contract project, and I'm quite pleased with the results! His knowledge of Ethereum, Solidity, and blockchain development is unparalleled. He wrote excellent code, communicated effectively, and solved challenging problems. If you need a top-tier smart contract develo
Up to $50
Price
2 weeks
Duration
Helpful?
