Karachi, Sindh, Pakistan
$40/hr · Starting at $200
We provide development and audit of smart contracts on Ethereum platform. The smart contracts can range from a token contract, an ICO to a customized contract for a decentralized application.
Ust-Kamenogorsk, East Kazakhstan, Kazakstan
$40/hr · Starting at $120
Hello! I am an IT developer. I am able to offer smart contracts security services and other IT solutions. My services: - Frontendend React, Angular, Tailwind CSS. - Backend Node.js, Express.js, M…
Bhavnagar, Gujarat, India
$20/hr · Starting at $100
Token & Coin Development - Services and DApps based on Blockchain - ICO, ERC-20, ERC-223, ERC-721, IPFS, Solidity, Smart Contract development & audit - Gambling and Casino smart contracts - Cryptocurr…
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…
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
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
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…
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…
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…
Bengaluru, Karnataka, India
$15/hr · Starting at $500
Hi, Greetings :-) My name is Shakeel Ahamad Khan and I work as a BLOCKCHAINS(Bitcoin, Ethereum, Hyperledger, Lisk, etc.) FREELANCER. Just wanted to give you all a brief heads up on my background:- 1.
Truskavets, L'vivs'ka Oblast', Ukraine
$40/hr · Starting at $1,000
⭐⭐⭐Here are my specialist in Blockchain Development⭐⭐⭐ ✔Solidity, Solana, Rust ✔ERC-20, ERC-721, ERC-1155 ✔Dapp, Cryptocurrency, Smart Contract, NFT Marketplace ✔ Roadmap, Mint, Stake, Fork ✔Web3.js,
Ouistreham, Nord-Pas-de-Calais, France
$25/hr · Starting at $1,000
- Skillful with Blockchain Architecture - Working on the famous chain like Ethereum, BSC, Polygon, Tron, XRP, Fantom, ... - Developing Dapp with React.js, Vue.js, React Native - NFT Development(from A…
Tehuacan, Puebla, Mexico
$25/hr · Starting at $50
A software developer who is responsible for all phases of software development, from requirements gathering and analysis to design, development, testing, and support. Owner with excellent requirements…
Umka, Central Serbia, Serbia
$50/hr · Starting at $1,000
I develop secure and scalable blockchain solutions, including dApps, DeFi applications, NFT marketplaces, and DAO governance tools. Smart contract security and gas optimization are key priorities in m…
Beaverton, Oregon, United States
$50/hr · Starting at $2,000
I have rich experience in development of frontend, backend, mobile and microservice. Especially, I have rich experience in implementation of microservice using Rust and Golang. Here is my skillset. Ru…
Paklay, Xaignabouri, Laos
Past Earnings
$40/hr · Starting at $500
Thanks for your checking my service. I had a 5+ years experience for Blockchain Software Development. - Dapp with rust smart contract and web3.js - Defi with solidity smart contract - Dex with p…
Amritsar, Punjab, India
Smart Contract & MLM Software Developer I excel in smart contract development, crafting secure, efficient solutions for blockchain projects. My expertise extends to MLM software, where I create custom…
Ifite Awka, Anambra, Nigeria
$50/hr · Starting at $100
If you are looking for a reliable full-stack developer for your web3 development, you are at the right place. I have 2 years expriences in developing and building Dappa nd Defi. I have solid skills in…
Paris, Ile-de-France, France
$40/hr · Starting at $3,000
Kodkodkod is a development studio imagined and created by developers. NFT / Blockchain / Web are our expertise! Our values: simplicity, requirement, benevolence, trust, fairness, humility.Here, we do
Chennai, Tamil Nadu, India
$30/hr · Starting at $440
ABOUT ME: I am a 22-year-old history major aspiring to become one of best business developer. I am skilled in marketing strategies. WORK EXPERIENCE : Junior Copywriter Content Writer: I worked as a