General Pacheco, Buenos Aires, Argentina
$45/hr · Starting at $30
I offer comprehensive backend and blockchain development services with over 5 years of experience. Specializing in Node.js, PHP (Laravel), Solidity, and React, I transform ideas into robust and effici…
Islamabad, Islamabad, Pakistan
ID Verified
$50/hr · Starting at $5,000
At Zyp, we have years of rich software development experience to offer you a comprehensive range of blockchain solutions including Custom Blockchain Development, Smart Contracts, Tokenization, Web3 De…
Abu-Dhabi, Abu Dhabi, United Arab Emirates
$20/hr · Starting at $2,000
Blockchain Development Services AmberCore provides end-to-end blockchain development services, specializing in Ethereum, Binance Smart Chain, and custom blockchain solutions. We deliver secure, scalab…
Saran, Bihar, India
$65/hr · Starting at $1,500
I am a highly experienced provider of blockchain technology and blockchain-based application development, with extensive achievements in the industry. My expertise spans creating decentralized applica…
multan, Punjab, Pakistan
$5/hr · Starting at $25
Here’s your rewritten version without using the word “gig,” keeping it professional and easy to read: I’m Santiago, a blockchain developer and expert in cryptocurrency and smart contracts. If you’re l…
london, England, United Kingdom
$30/hr · Starting at $1,000
I have rich experience of cryptocurrency Exchange System. I made over 50 altcoin exchange system. I prefer awesome clients.
Sargodha, Punjab, Pakistan
$8/hr · Starting at $25
I am experienced in ground level surveys on different websites, products , apps ,Human behavior , IT , Educational standards , Population , Currency , cryptocurrency , freelancing etc. by differ…
Sochi, Krasnodar, Russian Federation
$10/hr · Starting at $300
Blockchin , Masternode , Tocken Devloper ICO , MLM , Lending , HYIP , Exchange Creating Coin with all Wallets ( Windows , Linux , MacOS , Paper , Web , Mobile )
EtayElbaroud, Al Qahirah, Egypt
$20/hr · Starting at $100
Java EE/ Blockchain Senior Application Developer and BPM @ IBM egypt architect in Hyperledger fabric and composer
Princeton, New Jersey, United States
$30/hr · Starting at $25
Experienced in developing DAP over Ethereum and also hyperledger fabric, with industrial background.
New Delhi, Delhi, India
$15/hr · Starting at $40
I am douing data entry work . And timely done work completed.one time give the work ensure you deliver work Timely.
Ahmedabad, Gujarat, India
I have experienced of developing blockchain application in ethereum and hyperledger framework. I also write smart contract for ICO and DApps using solidity.
Thiruvananthapuram, Kerala, India
$20/hr · Starting at $25
I am an experienced QA having 6 years of experience in software testing and a blockchain enthusiast.
Moscow, Moscow, Russian Federation
$60/hr · Starting at $200
We have 5 years experience of blockchain development and smart-contracts creation. Completed several projects for the clients in Russia and abroad.
BANKURA, West Bengal, India
i provide my clients investment ideas regarding stock market,mutual funds and cryptocurrency.i have 5 years of investing experiance.
Yerevan, Yerevan, Armenia
$30/hr · Starting at $750
As a Senior blockchain developer with 5 years of experience in React, Web3 and Smart Contract, I can help you finish any projects related to blockchain. Staking pools, dapp, ERC721, ERC20 Token, BEP2…
Kolkata, West Bengal, India
$25/hr · Starting at $1,000
SPECIALTIES - Smart Contract Creation. - NFT-based marketplace. - NFT-based gaming platform. - Dapps. - Private Blockchain Development. - ICO Development. - Decentralized Exchanges. - Blockcha…
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…
Philadelphia, Pennsylvania, United States
$30/hr · Starting at $500
-University of Texas at Austin. Bachelor's Degree. -live in Philadelphia -8 years of development experience (4 years of Blockchain development experience) -Cosmos, Polkadot, Near, Ethereum, Solana\ -…
$40/hr · Starting at $5,000
Expertise with developing cryptocurrency wallets for web & mobile devices for Altcoins and Ethereum tokens.