
Muhammad Hassan
Level 2
Expert Blockchain Developer: Tokens, Presale, Staking dApps
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20 USD
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Esperienza lavorativa
Blockchain Developer | Smart Contracts & Web3 Solutions
Upwork • Lavoratore autonomo
Sep 2025 - Present • 8 mos
Hands-on experience developing and deploying smart contracts and full-stack Web3 applications on EVM-compatible networks, including ERC20, ERC721, and ERC1155 standards. Extensive work on presale, ICO, and IDO systems featuring whitelisting, tiered allocations, vesting schedules, staking mechanisms, minting logic, refund handling, and secure multi-wallet fund collection. Strong emphasis on writing gas-optimized, secure, and audit-ready Solidity code using industry best practices, with end-to-end integration into React/Next.js applications via ethers.js and web3.js, including wallet connectivity (MetaMask, WalletConnect, TronLink), admin dashboards, contract management tools, and deployment workflows using Hardhat and Foundry.
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Valutazione dettagliata
- Livello di comunicazione del venditore
- Qualità della consegna
- Valore della consegna
Ordina per
mobindee
Cliente abituale

Bangladesh
Great experience working with him. Very skilled in blockchain development and smart contracts. Delivered everything on time with clean and secure code. Communication was smooth throughout. Highly recommended for any Web3 or token-related project.
Risposta del venditore
abdul_wahab1233

Pakistan
mobindee
Cliente abituale

Bangladesh
Risposta del venditore
mideals24
Cliente abituale

Camerun
He is really good at what he does. Quick and flexible. Excellent to work with.
perfectyou

Canada

