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\ -…
Pune, Maharashtra, India
$20/hr · Starting at $30
I have expertise in javascript , typescript , angular.js, react.js , react native, flutter, web components, node.js , salils , express , d3js , vis.js , three.js , webrtc etc javascript framework etc
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.
Reya, Zhytomyrs'ka Oblast', Ukraine
ID Verified
$20/hr · Starting at $50
Proficient in -Landing page development with Wordpress -Frontend Development with React, Vue, Anguar -Backend Development with Node.js(Express, Nest.js), Laravel, Django -Smart contract development on…
Kowloon, Hong Kong, Hong Kong
$40/hr · Starting at $25
- Blockchain(Bitcoin | Ethereum | BSC | Polygon | Fantom | TRON) * Defi & DApps * NFT & NFT Marketplace * Smart Contract, DAO, Staking Pool, Mining Pool * DEX Development - Full-Stack * Web-based syst…
Livenka, Kiev, Ukraine
I always welcome entrepreneurs & innovators to partner up with my highly experienced skills&stacks to implement your ideas into reality. Whether you need a website, coin or apps developed or even Digi…
vancouver, British Columbia, Canada
$15/hr · Starting at $30
Token Smart Contract Development The Diamond Stable Coin Wallet and Ecosystem DSC (Diamond Stable Coin) launch happens at the same time as the launch of two internet platforms, DSC and DiamDrop. DI…
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…
Val-des-Bois, Quebec, Canada
$35/hr · Starting at $60
James is a developer with expertise in the blockchain space. He has built entire projects around blockchain. As an experienced developer, he has conceptualized and delivered many of his own products.…
Minsk, Minsk, Belarus
Past Earnings
$50/hr · Starting at $45
We have experience working with distributed ledger technology including Hyperledger, Ethereum, R3Corda, and Hashgraph. We have deployed Smart Contracts using Solidity, node.js and Go on both public a…
Moscow, Moscow, Russian Federation
$50/hr · Starting at $200
- Cryptography: PKI, HSM, Symmetric and Asymmetric, ECDSA, TLS, AES, etc - SQL: PostgreSQL, MySQL, SQLite, H2 and many others - NoSQL: Aerospike, Mnesia, Memcached, Redis, Tarantool, Mongodb, LevelDB,…
Icara, Santa Catarina, Brazil
$25/hr · Starting at $50
experience: Analysis and algorithms design. Linear data structures. Non linear data structures. Search and sort. Languages theory and compilation. Compilation labs. Automatic Generation of compil…
La Paz, La Paz, Bolivia
$15/hr · Starting at $25
I am specialized in blockchain development, but I can complement my work with frontend and backend development, using nodejs and React framework Smart contracts in solidity Api Ethereum explorer filt…
Meyrin, Geneva, Switzerland
$5/hr · Starting at $100
Are you looking to create your unique NFTs and require a custom smart contract to ensure security and immutability? Look no further! My smart contracts are built on Ethereum and are fully compliant wi…
Lakeview, Ohio, United States
$25/hr · Starting at $100
I have made custom ERC-20 and ERC721 contracts for polygon (IE ethereum) without any prior knowledge about it. Not only is fresh in my mind, I'll adapt my talent to learn to any crypto based project.
Jaipur, Rajasthan, India
$25/hr · Starting at $25
Have implemented Blockchain at various government set up so far. We are disrupting this space using our in-depth knowledge in implementing distributed systems
Blagoveshchensk, Amur, Russian Federation
$50/hr · Starting at $100
Blockchain is a technology that can safely store transaction records on a peer-to-peer network instead of storing them in a single location. I have experience with Blockchain, Cryptocurrency, Ethereum…
Boyarka, Kyyivs'ka Oblast', Ukraine
I have read your descript carefully and felt who this is just project for me. I am full-time developer and have rich experience in Python for 5 years. I am sure I can fulfill your requirements, and co…
Kharkiv, Kharkivs'ka Oblast', Ukraine
$25/hr · Starting at $1,000
- Developed 5 production blockchain platform for web and mobile app - Mainly used Rust, Solidity, Ink, Substrate, Web3.js, React.js, Node.js - Wrote many smart contracts with solidity inTruffle, Wasm
Sun City Center, Florida, United States
$5/hr · Starting at $300
I create basic, safe, and functional ERC20 Standard token contracts. Nothing fancy, just safe and reliable. I can have contracts done and verified within an hour. Available all day and night.