I will develop smart contracts and dapp
Blockchain Developer
About this Gig
Expert Full-Stack Blockchain & dApp Developer
Looking for a secure, gas-optimized Decentralized Application? I build premium Web3 solutions from scratch using a robust tech stack: Solidity, TypeScript, Next.js, React.js, Node.js, Express.js, and MySQL/MongoDB.
From bulletproof smart contracts to responsive user interfaces and off-chain database caching, I deliver clean, production-ready code.
Tech Stack & Services:
* On-Chain: Solidity, Hardhat/Foundry, ERC20, ERC721A, ERC1155, Staking.
* Web3 UI: Next.js, React.js, Tailwind CSS, TypeScript, Wagmi, RainbowKit.
* Backend & DB: Node.js, Express.js, MySQL, PostgreSQL, MongoDB APIs.
️ What You Get:
1. Secure, gas-optimized Smart Contracts with full unit-testing.
2. Responsive Web3 frontend with flawless wallet integration.
3. High-performance backend & DB configuration for off-chain caching.
Why Choose Me?
* Security-first approach (Anti-reentrancy/exploits).
* 100% Source Code ownership included in ALL packages.
* Clean, scalable, and modular code architecture.
NOTE: Please MESSAGE ME before placing an order to discuss your custom project scope!
Purpose:
DeFi
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Web browser
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Dao
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NFT
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Smart Contracts
Programming language:
JavaScript
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Solidity
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TypeScript
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Node.js
•
React
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
FAQ
Will I get the complete source code and full ownership?
Yes! 100% full unencrypted source code ownership (Smart Contracts, Next.js UI, and Node.js backend) is included in all packages.
Which blockchain networks do you support?
I support all EVM-compatible chains, including Ethereum, Polygon, Binance Smart Chain (BSC), Base, Arbitrum, and Optimism, along with their testnets.
Why do we need a backend and database (MySQL/MongoDB) in Web3?
Storing heavy data on-chain is expensive. We use Node.js and a database to cache off-chain data like user profiles and analytics, making your dApp 80% faster and reducing gas costs.

