Best web3.js freelancers for Hire

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We found 53 web3.js Freelancers for Hire. Post a job for free and hire a freelancer with the skills and reputation to get your task completed.

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Petar Vasic

Full stack Web and Blockchain Developer Serbia, Belgrade
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1 review
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56
2 jobs completed

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About me

Web developer focussed on Blockchain and Crypto-related projects, Crypto Gambling and Betting platforms, Trading Platforms and Exchanges, crypto lending and payment solutions. Last 5 years I have worked on several successful DeFi projects. Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Multichain Web and Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Automated Market Making (AMM) protocols ✔ NFT ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ DeFi development: Uniswap, Compound, Mooniswap, Sushi Swap, WBTC, Binance Launchpool, NFT, BakerySwap, Pancake Swap. Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ JavaScript/ Typescript, React.js, Node.js

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50 USD/hour
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Mrinal Sharma

Blockchain Architect India, Pune
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0 reviews
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30
0 jobs completed

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About me

I am representing Blockchainerz Technologies which is a subsidiary of Cyperts Digital Solutions Pvt Ltd, we are one of the premium blockchain consulting firms with experience of 7+ years in blockchain-related services and successfully completed over 50 + blockchain applications. We also have extensive experience in website and mobile application development. Blockchain Related Development - Custom Private Cryptocurrency Development - ICO launching (ERC20 / BEP20) - Custom Smart Contract & PoC - Cryptocurrency Exchangers (Centralised & Decentralised) - Cryptocurrency Single & Multi Wallets - Peer to Peer Marketplace - Peer to Peer Insurance - Peer to Peer Realstate - NFT - DApps - UniSwap & PancakeSwap projects Technologies that we work on:- - Ethereum - Solidity - Web3js - Smart Contract - Viper - GoLang - C++ - Rust - NodeJS - ReactJs - MEAN Stack - Python - PHP

Rate

40 USD/hour
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Alexander Doroshaev

Talented Blockchain Developer Ukraine, Krivoy Roh
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0 reviews
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28
0 jobs completed

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About me

Welcome, I am Alex, a full stack dveloper well versed with Blockchain. I'm passionate about solving challenging problems that others find difficult or impossible. ✔ DeFi development: Pancake Swap V2, Uniswap V3, Sushi Swap, Yearn, Curve, Balancer, Synthetic, Compound, Aave, Mooniswap, Fulcrum, dYdX, , Zapper, Maker, insstaDApp, Bancor, Loopring, Polkadot, Substrate, WBTC, RenVM, DDorce, mStable, Alchemy, Binance Launchpool (BellaProtocol), MLM, NFT, BakerySwap, Pickle, Fortube, PerlinX, UMA Project, YFV, YFII, Synthetix, dForce, Swerve, Zoom Protocol. ✔ Blockchain stack : Web3, Solidity, Infura, Truffle, OpenZeppelin, MIST/Remix, BTC, ETH, BSC, TRON, YFI, Bel, Solana Web Stack: ✔ Web3.js, Ethereum, Solidity, Truffle ✔ JavaScript/ Typescript, Vue.js, React.js, Node.js ✔ HTML (5), CSS (3), LESS, Sass, Bootstrap (4/5) ✔ PHP / Laravel / CI ✔ Shopify / Prestashop / Wix/WordPress ✔ MySQL, MongoDB, Redis ✔ 3rd Party API Integrations ✔ TDD methodology (Unit-testing)

Rate

99 USD/hour
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George Edward

Fullstack Software Developer Canada, Ontario
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0 reviews
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23
0 jobs completed

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About me

I'm a Blockchain/Web/Mobile/Desktop developer and designer proficient in both development and design across multiple platforms including websites, iOS applications, Android applications, web apps, and desktop apps. My Stacks: - HTML/HTML5/CSS/CSS3/JavaScript/SASS/LESS/jQuery - PHP/Python/Ruby/Laravel/MySQL/Node.js/AngularJS/AJAX - Photoshop/Illustrator - Java/C++/C#/C/.NET/GO - Swift/Android SDK - React/Ionic Portfolio: - https://imusify.com - https://ninjapromo.io - https://www.divrsionarcade.com - https://forsage.io - https://au.mbt.com - http://npw.live - https://p2pb2b.io - https://www.cryptorocket.com - https://playnumbersgame.com - https://www.anonymixx.com - https://blender.io - https://livetrades.com -https://coinverify.com Looking forward to hearing from you. Thank you. Email: senior.coder007@gmail.com Jabber: cddev2018@jabber.calyxinstitute.org Telegram: @SeniorCoder Discord: seniorcoder#2701 Skype: live:concept_developer

Rate

70 USD/hour
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Milos Cojcic

Serbia, Belgrade
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0 reviews
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19
0 jobs completed

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About me

Hello, my name is Milos. As a Senior Developer, with outstanding experience in various fields, such as web and mobile, cryptocurrency. - Cryptocurrency tech: * Crypto Coins Exchange Development * Custom Blockchain Development * ICO Development with Created Token ( Coin ) * Smart-Contracts (Solidity, Truffle framework) * Token development (ERC20, ERC223, ERC721, ERC 1155) * Cryptocurrency Wallet and Exchange Applications * Private Blockchain Development - Web tech: * Node/Express, React, Vue, Web3js * Laravel, CodeIgniter, Yii * React, Vue, Angular, Node/Express * WordPress, Shopify, Wix, Joomla * Chrome extension, Automation script * Python, Flask, Django, Webscraper * MongoDB, PostgreSQL, SQLServer, MySQL

Rate

85 USD/hour
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Blockchain Guru

Blockchain, Smart Contract, DeFi, DApp, React, Solidity Russian Federation, Moscow
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0 reviews
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18
0 jobs completed

Skills

About me

- Building DeFi & Dex by forking Pancakeswap, Pantherswap, Goosedefi and so on - Upgrading Pancakeswap Dex from V1 to V2 - Forking and costomizing Safemoon token - ICO preslae landing page and smart contract for selling token - Trading Bot (Frontrunning, Sniping) - Developing smart contracts using a Solidity programming language. - Developing RPC using client libraries such as Web3. - Static analysis of smart contracts for gas consumption and optimization using Remix IDE. - Securing smart contracts using libraries like OpenZeppelin. - Developing Ethereum dApps using Truffle framework. - Integration with crypto wallets such as Metamask.

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Milojko Pantic

Fullstack & Blockchain Expert Serbia, Novi sad
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0 reviews
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18
0 jobs completed

Skills

About me

Hello, Nice to meet you. I have rich experience with Blockchain for 5+ years. Meantime, I was completed so many blockchain relevant projects such as DEFI & DAPP development, Token & Smart contract Creation, Pancakeswap & Uniswap forking, Creation NFT marketplace. If you want I can show my previous work results to you. You will be satisfy to check it. Of course, I will start work right now and will finish it shortly. Please contact me so we could discuss it further. Thank you in advance

Rate

50 USD/hour
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Spyros Paraskevopoulos

Consultant, software developer, researcher, economist, electronics Greece
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0 reviews
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18
0 jobs completed

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About me

I am a passionate researcher with internationally recognized publications in economics and technical disciplines, but also mathematics. Most of my work has been published under pseudonyms and some of it was never credited to me or to any of my pseudonyms, when it was contributed in a context of a University team. I hope no one has to suffer such a fortune, ever. I have also studied for two years object oriented software development with Java. In addition, I offer fee and commission based services as a crypto-consultant (btc, altcoins, etc.). You may check out my web site @ https://cryptoconsultant.services/ Currently, I look for opportunities in relevant technical fields.

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Ararat Tonoyan

Blockchain and Web develope Russian Federation, Kursk
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0 reviews
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15
0 jobs completed

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About me

✅ Lead Developer With 5+ Years Of Experience | Top Rated Freelancer. Hi, I am a professional web and blockchain developer with a huge practice in this field. I like to build interesting applications that matter. The shortlist of my professional skills: ✅ - Decentralized applications (DApps) ✅ - Difficult and scalable smart contracts ✅ - Websites (frontend/backend) ✅ - API & Microservices ✅ - Architecture and tech stack consulting Expanded list: 🔗 Blockchain Development Stack ✅ - Decentralized application development (DApps) ✅ - Smart contracts development ✅ - Architecture and technological stack planning ✅ - Solidity programming ✅ - UNIT tests ✅ - Protocols, state channels and sidechains development ✅ - Assembly code blocks integration ✅ - Chainlink integration ✅ - Any type of digital assets development 🌐 Web Development Stack ✅ - HTML, CSS ( html5, css3, sass, bootstrap ) ✅ - JavaScript ( es 6-10 ) ✅ - Web3 Js ✅ - React Js ( redux ) ✅ - React Native ✅ - Angular Js ( 1.x ) ✅ - Vue Js (vuex) ✅ - jQuery ✅ - Node Js / Express ✅ - Databases ( firebase firestore, mySQL, postgreSQL ) ✅ - Docker ✅ - Wordpress website creation from scratch ✅ - Deployment on shared/VPS hostings I do believe I can bring my fresh set of ideas to your projects. I'm sure we will enjoy working together. I always open to consulting, so feel free to contact me. Looking forward to talking to you soon.

Rate

135 USD/hour
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Jin Lim

Expert China, Beijing
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0 reviews
Reputation 
15
0 jobs completed

Skills

About me

Blockchain technology has attracted my heart from the moment it appeared, and since then, I have dreamed of working in a blockchain-related profession. Fortunately, I was able to learn about blockchain at university and gained experience in blockchain development through various opportunities. After graduating from university, I wanted to devote my life to blockchain development, and that's how I came to laborx.com. I am not afraid of new skills and for the project, I can research any technology, and that's what I've been doing so far. My experience - creation of new token (ERC20, ERC721, BEP20 and etc) including ICO - Smart contract development and website building to interact with that smart contract by using Web3.js, ether.js and etc - Defi Website and NFT marketplace - trading and sniper bot running on blockchain. - trading strategy (pine script) - Blockchain consulting - Ethereum, BSC, Tron Skills - Blockchain concept - Solidity - React and Node - Basis for web development

Rate

80 USD/hour
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Hassan Abbas

Chief Technology Office Pakistan, Islamabad
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0 reviews
Reputation 
14
0 jobs completed

Skills

About me

My strength lies in focusing on your problems & solutions rather than selling myself. I'm a Professional blockchain developer with over 5+ years of experience in managing and assisting the development, planning and production of indigenous blockchain applications and technologies. I've evolved with technologies and have been through FullStack|MEAN|MERN development prior to Blockchain. Expertise in the following Skills & Services : -Crypto Exchange Development -Enterprise Blockchain Development -Ethereum Smart Contract Development -Distributed ledger technology(DLT) Development -Social Media Marketing -Project Management -Software Development using .Net Technologies -Problem Solving

Rate

20 USD/hour
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Vasa Kostic

blockchain and reactjs Serbia, Beograd
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0 reviews
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13
0 jobs completed

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About me

Hi, I'm Vasa Kostic from Serbia. I am an expert full-stack blockchain developer with over 5 years of working experience in this field. my aim and objective of coming in this platform is to offer you quality and outstanding work done that you may Service I provide: Smart contract development on any of your desire blockchain network yield farming, staking, pool Your own crypto coin and token DAPP, DEX and DEFI platform Pancakeswap or uniswap fork or clone Web-based system development ( PHP, Django, Laravel, CodeIgniter, NodeJS, Magento) front end development ( React, Vue, Angular) Database development ( MySQL, MongoDB) etc. WHY YOU SHOULD CHOOSE ME: Outstanding work done On-time delivery Full Future support etc. I would like you to contact me to discuss your project requirements and to finalize your budget and timeframe. best regards.

Rate

45 USD/hour
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Coding Legends

Blockchain and Digital Marketing Expert (Solidity Smart Contract,DeFi) Sri Lanka, Colombo
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0 reviews
Reputation 
12
0 jobs completed

Skills

About me

Last 6 years I have worked on several successful DeFi and FinTech startups (drop me a line to see my full portfolio as a blockchain developer). Solutions I provide: ✔ DEX and Centralized Crypto Exchange ✔ Advanced Trading Platform (Stocks, CFD, Forex, Option, Features...) ✔ Portfolio Tracking Platform ✔ Web/Mobile Wallet ✔ Crypto Betting and Casino ✔ Yield Farming Protocols ✔ Liquidity Mining Protocols ✔ Flash Loans ✔ Impermanent loss, governance tokens ✔ P2P/Pool Lending and Borrowing ✔ Crypto Collectible Platforms and Non-Fungible Tokens ✔ Custom dApps ✔ ERC20, ERC777, ERC223, ERC721, ERC1155 Smart Contract Development ✔ Forsage, Linos Share, BestMining like MLM Crowdfunding HYIP Platforms ✔ ICO, STO, Blockchain Copyrighting and Whitepapers

Rate

50 USD/hour
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Martin

Developer Argentina, Mar del Plata
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0 reviews
Reputation 
11
0 jobs completed

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About me

Software craftsman, most experienced in web (very enthusiast about web3!). Latest work involved React, MUI, Storybook, atomic design. I could use anything, from Vainilla JS to the latest framework. I learn by myself and nothing I don't know can stop me. Open source supporter. Github @tincho

Rate

41 USD/hour
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Faiz Ali Khan

Article, Blogs Writer. Pakistan, Lahore
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0 reviews
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10
0 jobs completed

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About me

Blockchain is the new emerging technology that are rapidly shaping the future of humanity. In order to comply with the basics of blockchain technology, I am here to try my best to explain and convey the evolving concepts that are come in a way between you and the Blockchain. As the world of today is moving faster towards decentralization web 3.0, in this era of rapid change it is the duty of every individuals to take participation and make the global community more independent, prosperous and financially stable.

Rate

10 USD/hour
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Masanori Uno

Smart Contract Developer (Blockchain Developer) Estonia
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0 reviews
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10
0 jobs completed

Skills

About me

I'm a smart contract (blockchain) developer. I'm passionate about building a smart contract on the top of Ethereum and utilize them into various industories. (Using Solidity, Truffle, web3.js) I also build frontend and backend by using React/Node.js I'm especially interested in MVP (Minimum Viable Product) development for the startup companies. My Github:https://github.com/masaun Contact:masaun@protonmail.com

Rate

50 USD/hour
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Akira Mori

Full Stack Blockchain and Web Engineer Japan, Tokyo
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0 reviews
Reputation 
9
0 jobs completed

Skills

About me

I am fascinated by blockchain technology and how it is changing the way we live, and bring over 8 years of relevant experience efficiently coding full stack blockchain and web applications using JavaScript, TypeScript, Web3.js, Python. I especially enjoy working closely with both technical and non-technical clients/points of contact and have worked with people from all over the world.

Rate

55 USD/hour
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Guillermo Perez Alba

Blockchain developer Spain
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0 reviews
Reputation 
8
0 jobs completed

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About me

About 5 years full time with blockchain, 3 as a professional. I write solidity smart contracts, integrate blockchain in apps, design ways to decentralize processes, develop blockchain daemons, set up Ethereum or Bitcoin nodes, develop graph schemes...already have an startup so I know everything needed for a Dapp. Experience can be proved with my git repositories.

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60 USD/hour
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