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$
USD
I will develop custom smart contracts and dapps with solidity and ethereum
Senior AI and Web3 Developer
With 15 years of experience, I specialize in Web3 & AI, building secure Solidity smart contracts, Ethereum dApps, and AI models with Python, TensorFlow, LangChain, & RAG. I deliver agile, scalable sol...
About this Gig
Need a secure, scalable Web3 smart contract or DApp on Ethereum, BSC, Polygon, or any EVM blockchain? I'm a Solidity expert with 5+ years building ERC20/BEP20 tokens, NFTs (ERC721/ERC1155), and DApps.
Git ID to checkout my previous work: https://github.com/webumer/README
Services:
- Custom Solidity Smart Contracts (gas-optimized)
- ERC20/BEP20 Tokens & NFTs
- NFT Marketplaces (mint, trade)
- Staking/ICO DApps
- Web3.js/Ethers.js & MetaMask/WalletConnect
- React.js Frontend & Node.js Backend
- Full DApp Development
- Deployment on Ethereum, BSC, Polygon
- Infura/IPFS/Truffle/Hardhat Integration
Tech: Solidity, JavaScript, TypeScript, Hardhat, Truffle, Remix, Brownie
Why Me?
- Gas-efficient code
- End-to-end DApp solutions
- Testnet/mainnet deployment
- Ongoing support
Bring your Web3, NFT, or DeFi idea to life!
Purpose:
DeFi
•
Gaming
•
Know your customer (KYC)
•
Dao
•
Smart Contracts
Programming language:
JavaScript
•
Node.js
•
Solidity
•
TypeScript
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
Reviews
2 reviews for this Gig
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| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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Most relevant
C crypth11
Netherlands
Good job!!!
$100-$200
Price
2 days
Duration
Helpful?W 
waqas2513
Bahrain
Had a really great experience working with umer. He delivered the smart contract right on time and the quality of work was solid. What I appreciated most was the clear, straightforward communication it made the whole process easy and hassle-free. Super reliable and definitely someone I’d recommend if you’re looking for good blockchain work.
$100-$200
Price
6 days
Duration
Helpful?
Reviews
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C crypth11
Netherlands
Good job!!!
$100-$200
Price
2 days
Duration
Helpful?W waqas2513
Bahrain
Had a really great experience working with umer. He delivered the smart contract right on time and the quality of work was solid. What I appreciated most was the clear, straightforward communication it made the whole process easy and hassle-free. Super reliable and definitely someone I’d recommend if you’re looking for good blockchain work.
$100-$200
Price
6 days
Duration
Helpful?
