Hire the best Ethereum professionals

I'm a certified solutions architect for Amazon Web Services with experience in full-stack software development. My typical stack for web development is a React.js front-end paired with a node.js backend hosted on AWS. For mobile development my preferred stack is React-Native but I have experience in native development with Swift for iOS and native Android development in Java. I'd love to help your project at any stage, whether it's UX design, software development, API integration, data migration, or even just bug fixes & documentation. Whether you've got a new idea for an app or need a consult for a redesign on one of your micro-service...

Are you looking to create a sleek interactive experience for your website, landing page, web app, or NFT collection? I'm a creative coder who transforms your ideas into contemporary web experiences focusing on interactions, animations, and details to create the best possible immersive experiences. My skills are ideal for creating complex animated interactive websites and apps. When you work with me, you will get a freelancer who will pay close attention to your project and look for innovative ways to create sleek products that meet your goals and memorable experiences for your users.  INTERACTIVE EXPERIENCES DESIGN AND DEVELOPMENT ✅ UX |...

Hi! I'm a Full Stack Blockchain and a Subgraph (TheGraph) developer. I've more than two years of experience in writing smart contracts and building decentralized applications. I graduated from University of Karachi with a Bachelor's degree in Software Engineering in 2020, and have spent the last year working on blockchain based projects. In my journey I have built different types of decentralized applications including DeFi, NFT, Interoperability (bridges), ICO, Staking and E-commerce. Skills : - Solidity Programming - Understanding of Foundry, Hardhat, Truffle ((incl. Unit Testing) - Understanding of MetaMask & other Wallet APIs -...

Knowledge with web developer, I started work with JavaScript in 2015 I really interesting in your ecosystem with your frameworks like React, React Native, and NodeJs. Also, I am skilled in Blockchain development, Python and PHP back end applications. - React, Node, Javascript, Typescript HTML, CSS - Blockchain development, web3.js, ethers.js, solidity - PHP, Python, and frameworks - Electron, React Native - Puppeteer, Selenium, Google App Studio.

Hi! I am a senior full-stack software engineer, researcher, and blockchain developer, with 6+ years of experience in professional development and freelancing—primary expertise in Solidity, Python, C#, .NET, Typescript. I have a BSc in Computer Science, an MSc in Financial Computing, and I'm currently pursuing a Ph.D. in Financial Machine Learning. I am a Teaching Assistant at University Politehnica Bucharest, teaching Intro to C Programming, Logic Circuit Design, Intro to Linux / Operating Systems. Skills: - frontend development - Javascript/Typescript, PHP, HTML5, CSS3, LESS/SASS, React, React Redux, Angular, Vue.js, Knockout.js,...

Hi there! If you are visiting my page, then you are definitely in the right place for a high-paced software developer, and tech lead to deliver your project. I am an experienced Solidity, Web3, and Python Developer with an overall experience of 3+ years. I specialize in writing smart contracts, Python Scripting, and Full-Stack Development. To date, I have delivered over multiple large-scale projects to my clients in and outside of Upwork. Some of the blockchain projects I have worked on have made over $300K+ in total revenue during launch. You can check my portfolio here: manishgotame.com.np In the field of Blockchain, I have experience...

■ Programming languages: Java SE/EE, Spring (MVC,Boot,IOC), JDBC, SQL, Object-Oriented Programming (OOP), JSP,Node,Soldity,Javascript, Angular,React, ■ Web and Mobile Automation tools: Java, Selenium WebDriver, Spring MVC, Maven, TestNG/JUnit, Firebug, Appium, ADB, UIAutomator; ■ Webservers: Tomcat,GlassFish,Oracle WebServer; ■ Good knowledge of Java programing patterns; ■ Performance/Load tools: Jmeter; ■ Test Environments: Local, Grid, BrowserStack, Sauce Labs, AWS Farm Devices, Docker; ■ Web programming languages/technologies: HTML, Angular ,React, CSS, JavaScript, XPath, XML, JSON; ■ IDE: Eclipse; ■ CI: Jenkins(Pipelines); ■ Control...

KEY FACTS 1) 102% increase in conversion rate after a 28 days optimisation project. 16.2x on the project investment (ROI) within the first month! An investment of $14,000 resulted in $225,000+ in additional sales just within the first month after launching! 2) Generated over 64 million USD in online store revenue for the stores we've created! Worked with more than 30 Shopify Plus brands doing at least $1 Million in annual revenue each. 3) I deliver exponentially better results for brands and people that understand what’s involved in scaling an e-commerce store and are ready to follow a proven process without looking for shortcuts in cost...

Hi! I have 2+ years of experience creating NFTs and ERC20/BEP20 tokens including a fractionally algorithmic stablecoin with liquidity pools and an appropriate incentive structure. I have a degree in Engineering and have prior experience dealing with research level mathematics. If you have the time feel free to checkout my GitHub: github.com/CodeSaint98

I have 4+ years of experience in Blockchain Development. So far, I have completed 50+ Decentralized applications Dapps. You can work with me on different Blockchains like -Binance Smart Chain -Ethereum -Tron -Solana -Kucoin -Polygon (Matic) Crypto Payment Gateways | Tokenization | Defi | DEX | CEX | Smart Contract Development & Audit | Cryptocurrency | Wallets. You can get help with Javascript, Reactjs, Nodejs, MongoDB, Express.js, Solidity, IPFS. I offer Decentralized application & web development and consultancy for Blockchain start-ups, companies to support building a new product or enhance their existing...

After working in 5 startups and 3 Sillicon Valley companies, I have a long history of designing, developing and deploying entire Blockchain and Full Stack solutions to companies of all sizes. I'm proficient with web3, front end and back end development. Another advantage that I have are my communication skills: I'm good at listening to the client, understanding the requirements and delivering effective and efficient solutions with aggressive deadlines. I have developed multiple projects with great client satisfaction. Some examples include: - NFT Marketplace with tokens reedemable for physical assets (Solidity) - NFT minter for videogame...

I have been working in the space full time since 2018 and have gained a broad range of experiences. I have helped raise over a combined 1.5m for clients in 2021. My primary focus is now Solana where i spend a majority of my time teaching Blockchain Development on Solana. I really enjoy creating Tokenomics and writing Whitepapers. I also have creative direction/branding experience and a network of artists. I have done operations for teams as high as 50 people. 90% of my work comes from Twitter/Discord and past client referrals. I have also have obtained 4 clients legal regulatory compliance for their DAO in the USA. I value morals and ethics...

✅ Experienced (16+) ✅ Certified ✅ 100% Job Success, Top Rated Plus I'm result-oriented self-motivated charismatic leader with strong organizational and prioritizations abilities. Worked in outsourcing (custom software development) in the following domains: e-commerce, social networks, blockchain, insurance, finance, telecommunication, electronic document management systems, RPA (robotic process automation), ERP, AI, Healthcare, IoT, DATA Science, Cyber Security, Security Audit, Supply chain, Real Estate, Blockchain based identifiers, Blockchain based healthcare system. Summary - Leading in IT since 2010 - Managing up to 100+ developers...

Having 4 years of experience and 100s of happy clients in top rated web development using Blockchain, Solidity, Node, Angular, React, Vue, Javascript, Python, Django, php and Laravel. Solving complex problems and providing the most optimised solutions is what makes me different from others. With hundreds of books I have read and with the help of strong programming/development knowledge I possess, I am serving in the following areas of development -Web Development -Blockchain Development -Smart Contract Development -Frontend Development -Backend Development -MongoDb -MySQL -All other relational and non-relational databases -React.js...

I’m an experience Blockchain Developer and consultant. I work in the latest technologies :- Blockchain: 1. ERC20 standard token creation using latest secure version of solidity code. 2. ERC223 standard token creation using latest secure version of solidity code. 3. Crowdsale token contract having the facility to trasfer ether automatically to owner wallet, once received on the contract along with immediate token transfer to the buyer. eg: Cibus Token, Investa Coin, Thanecoin and 50+ other ICO tokens 4. Multicrypto currency wallet to provide smooth user experience during the ICO and lifetime. Eg: etherup.net 5. Enterprise level...

Expert-level developer with more than 15 years of development experience. I'm capable of handling much more complex code and working much faster than the vast majority of software developers. I provide end-to-end services for Individuals, Startups, Enterprise and Government clients looking to Design, Build and Launch Innovative Software Solutions using Blockchain Technology. If you are looking for the most accomplished blockchain consultant here on Upwork, you have come to the right place. Blockchain Development Services: → Custom Blockchain Development → Smart Contracts Development, Solidity, Rust, Substrate etc → NFT Development → NFT...

Thanks for checking out my profile! An expert Full Stack developer, having 5+ years of experience and worked 4000+ hours on Upwork. I have developed Mobile Apps, PWA, SPA, and Web apps for different clients on Upwork. I know about React, React Native, Expo.io, Next.js, Gatsby, Ionic, Angular, Node.js, NestJs, LoopBack, PHP, Laravel, GraphQL, pgSQL, MySQL, and Web3. I worked on 20+ apps and websites using the above Tech Stack. My Development Area : -- E-Commerce Apps -- Real Estate Apps -- Restaurants Apps -- Delivery Apps -- Social Networks Apps -- Location-based / Maps Apps -- Bar Code / QR Code Scanner Apps. -- Payments Gateway...

I am Tunji, a Software Engineer, I work with Blockchain, Backend services, and also build web applications. I have been building blockchain services/products professionally for almost two years and during this period, I have worked in the blockchain and decentralized finance space. My technical expertise includes cross-platform proficiency (Windows, Unix, Linux, and their internals), fluency in Python, Django, JavaScript, Node.js, web3.js, solidity, Vyper, and expert knowledge of tools such as truffle, Buidler, ganache CLI, remix, Ethereum virtual machine, docker and AWS. I am always looking for opportunities to learn, contribute, and grow...

Hi, I am Talha Arshad Dar and I am a top-rated crypto/blockchain/NFT writer on Upwork. I have over 6 years of experience in this sector. I work/used to work for these websites: crypto8.com Bitcoinkoers.org wonderfulengineering.com bitcoinnews.com I can write whitepapers, crypto articles, NFT promotions, Web 3.0 articles, and even help coin projects, IEOs and other blockchain initiatives gain traction with publications on major coin blogs in the form of press releases and sponsored articles. Looking forward Regards,

Web and Mobile development services for Blockchain and Crypto startups. Building Custom DApps, Crypto Gambling and Betting platforms, Casino games, DeFi Ecosystems, Decentralised Trading, and Analytic Solutions, Trading Platforms and Exchanges, Crypto Lending/Borrowing Platforms, Clone Swaps, Crypto Wallets. Drop me a line to see my full portfolio! Solutions we provide: ✔ DEX, Centralized Crypto Exchange and Hybrid Exchanges ✔ 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...

12+ years of experience with Specialized in Blockchain development, Mobile games and mobile applications development. I have been developing apps since 2011 and have extensive iOS app and Android App portfolio. iOS: [Swift 4.0 and below + Objective C] Also, I am well aware of design styles/animations, SpriteKit, HeyZap, map integrations, MapKit, background check API, license scanner, Coredata, Core Animation, Health Kit, ARkit, Google firebase, AVFoundation, iBeacon Integration, Pubnub, Bluetooth Connection, Google Place API, AR Map etc. Android: [Java/Kotlin] Data Binding, Real Time communication with Socket,Xmpp, 3rd party like...

✅ Upto 90% Job Success ✅ High Client Recommendation Rate ✅ 5 Star Feedback ✅ Fast Response Rate About me(CEO of Bloxbytes.com): I’m an enthusiast of Blockchain and Decentralized Systems. I have been working as a project manager/Head of software development in so many projects/products where I developed the application for 24/7 live with no downtime. Moreover, I have always emphasized on code optimization, architectural improvements and delivers quality shipments. I'm very energetic in my field and always love to accept challenges and like to work in a competitive environment. Along with his programming capabilities, I have a very strong...

Why should you choose me: - Top 1% talent on Upwork: I'm part of the "Expert-Vetted Talent" program helping Enterprises and businesses - 5 years of production Solidity / SmartContract experience - Successfully launched several NFT collection + Metaverse projects (dream3.io, realnifty.xyz, KandiKids.io, cosmicuniverse.io, Discodogsnft.com, Sonat Clan, etc) - Planned, developed and launched several large platforms successfully (Zaptheory, Wellbility, Goldcanvas, etc) including Ethereum based NFT-Marketplaces / NFT-Collections. - Have served as the Chief Blockchain Officer at a major fast growing blockchain startup based in NYC - My silicon...

✅ 6+ Years of Experience ✅ 1750+ hrs on Upwork ✅ dApps 👋 I'm Frontend (React.js | Web3.js | Ethers.js | Alpine.js | JavaScript) developer, which could build interactive experiences for web application and solve challenging problems that occur. Also, specialize in high performance modern frontend solutions with API integrations, Web3. Good in developing responsible layouts from scratch using modern technologies such as HTML5, CSS3 and user interface using vanilla JS (ES5+), popular js libraries and JavaScript framework (React), managed CRM creating process. The stack: ✢ Vanilla JS(ES5/ES6+) / React.JS + Mobx + JSX / Alpine.JS; ✢ Node.js,...

Hi. I have 12 years of experience in software development, the last 5 years of which have been related to the blockchain development. The shortlist of my skills: ✅ Smart contracts development and deployment for Ethereum, BNBchain, Solana, Polygon, Polkadot, Avalanche netwokrs ✅ Crypto exchanges (DEX/CEX, P2P) ✅ Avalanche and Ethereum mass payment tools with low gas consumption ✅ Tokens creation(ERC-20, ERC-721, BEP-20) ✅ Blockchain forks ✅ Creating tools/scripts for data interacting/data extracting from the blockchains ✅ Processes automatization ✅ API and Microservices ✅ Building React/Vue applications, subgraphs, databases ✅ Configuring...