Mirpur Khas, Sindh, Pakistan
$5/hr · Starting at $25
I have a great experience in the development of cryptocurrency such as ERC20/ ERC721 / ERC721A / BEP20-token and other OpenZeppelin contracts. I have also developed NFTs (ERC721/ ERC721A) and tokens (…
Krasnodar, Krasnodar, Russian Federation
$50/hr · Starting at $150
Hello! I am new on upwork , but I have rich experience in blockchain software fields. My Skills fields 1. erc20/bep20, erc721/bep721, erc1155 smart contract etc 2. web3.js, node.js, react.js 3. integ…
Toronto, Ontario, Canada
$30/hr · Starting at $60
As a senior blockchain developer, I have rich and strong experience in build NFT minting & staking & marketplace with React.js & Node.js for frontend and backend and smart contract on multiple chains…
Naaldwijk, Zuid-Holland, Netherlands
$50/hr · Starting at $40
Are you looking for a gas-optimized and trouble-free smart contract? Well, you are at the right service. I can convert your idea into a full-scale project which will forever live on the blockchain. I
Istanbul, Istanbul, Turkey
$85/hr · Starting at $75
My Background I’m a highly experienced Software Developer with 14 years of computer programming background who likes engineering client side applications. So far I have worked for Digital Agencies, So…
Lahore, Punjab, Pakistan
$15/hr · Starting at $30
Ingenious and Dynamic Project Manager, with vast experience in C#, Unity 2D/3D, Blockchain and web apps willing to exhaust my knowledge to achieve client targets. I have experience in managing differe…
Kharkiv, Kharkivs'ka Oblast', Ukraine
14/yr · 100%
$50/hr · Starting at $2,000
I am a C++/C#/Py/Rust/Solidity software architect/developer with 15+ years of experience in development -HFT ultra-low-latency cross-brokers, cross-platform multi-asset algorithmic tools based on Quic…
Paterson, New Jersey, United States
$60/hr · Starting at $500
Solidity Smart Contract development Wallet connect and wallet integration Digital asset lending protocol NFT marketplace development Cryptocurrency token development OnChain Game development Automatic…
Plano, Texas, United States
$50/hr · Starting at $200
I have extensive experience with blockchain technologies such as Bitcoin, Ethereum, Solana, ICP etc. As an experienced Blockchain Developer, I have tons of experience front-end and back-end developmen…
Sydney, New South Wales, Australia
ID Verified
$20/hr · Starting at $50
As a skilled blockchain developer I can provide you to write smart contract in EVM, Solana, Aptos and Cosmos chains. I have built several Dapps and Defi like NFT marketplace, Dex, Token launchpad, Cas…
Beograde, Serbia, Serbia
$25/hr · Starting at $1,500
To secure a challenging position as a Senior Blockchain Developer, leveraging 5+ years of experience in blockchain technologies, including developing and deploying 100+ smart contracts and DApps. Aim
Myliach, Rivnens'ka Oblast', Ukraine
Past Earnings
$45/hr · Starting at $1,000
I'm a senior full stack developer who has an experience for over 7 years. I've worked on the De-Fi projects such as Fastswap, Pantherswap, Sushiswap, Brewlabs communities and coca-cola metaverse. I wo…
Washington Dc, Washington, United States
$40/hr · Starting at $800
I WILL DEVELOP BITCOIN FLASHING SOFTWARE/ USDT FLASING/ SOFTWARE FLASHING WITH MY NEW BITCOIN FLASHING SOFTWARE VERSION If you don't have a hash rate, bitcoins can only be kept in your wallet for a ma…
East Rochester, New York, United States
$30/hr · Starting at $500
- 4+ years of experience in developing smart contracts using Solidity and Cadence. - Experience in DAPP development and interact with EVM/Solana/Flow/Stacks blockchain platform - Coursework includes…
Blolequin, W. Sahara, Western Sahara
$6/hr · Starting at $42
L'Assistant informatique de Mr Touré est un service dédié à l'accompagnement en technologie et en mathématiques. Fort de son expérience en enseignement et en réseaux informatiques, il aide les élèves,…
ikeja, Lagos, Nigeria
$50/hr · Starting at $5,000
I would like to help you for your blockchain project with some of my below expertise services. Smart Contracts development using Solidity Web3 integration Unit testing and testing using testnets such
Sahiwal, Punjab, Pakistan
Whenever new customers visit social media profiles defiantly they judge your business with Social Media Followers Count. All successful companies focus on increasing this number and then pushing conte…
Baric, Serbia, Serbia
$30/hr · Starting at $300
Develop Web3 Platforms - Develop smart contracts using Rust and Solidity - Develop DeFi and NFT marketplaces - Develop & Integrate payment flows with cryptocurrency wallets with ethers.js/web3.js. - D…
Noida, Uttar Pradesh, India
450/yr · 100%
$30/hr · Starting at $1,500
Vegavid offers end-to-end DAO (Decentralized Autonomous Organization) development, empowering businesses to build transparent, community-driven governance models on blockchain. Our DAO solutions ensur…
Caracas, Distrito Federal, Venezuela
Welcome to Dlocs, a development company that offers solutions in both the web2 and web3 spaces. Our team of highly skilled developers has over three years of experience in the field and is committed t…