Hire the best web3.js Freelancers in Kharkiv, UA
Check out web3.js Freelancers in Kharkiv, UA with the skills you need for your next job.
- $40 hourly
- 0.0/5
- (0 jobs)
We are a Ukrainian web development company Cody Soft with 10 in-house specialists and 30 delivered projects. As Webflow Professional Partner, we specialize in low-code solutions to create websites and web apps convenient to our clients. To provide more profound services and meet the demands of businesses, the Cody Soft agency was founded to help clients scale their projects where one professional isn’t enough to do the job. So how can Astor Soft help you? Services we provide: ✔️ Webflow development ✔️ UX/UI design ✔️ MVPs for startups ✔️ SaaS applications ✔️ NFT websites ✔️ Blockchain development ✔️ Smart Contracts ✔️ Business Analysis ✔️ Motion design ✔️ Brand guide ✔️ Custom illustrations ✔️ Digital Marketing ✔️ SEO optimization Established in 2021 by four people, we haven’t stopped growing since. Our team provides services for companies of all sizes. We are good at being flexible, working with a variety of niches: ✔️ Finance ✔️ Artificial Intelligence ✔️ Real Estate ✔️ Education ✔️ Retail ✔️ Healthcare ✔️ Blockchain We are client-oriented and always offer a personal approach to each customer, their needs, and projects. We are affordable, efficient, and deliver TOP value digital products. Are you interested in scaling your business by boosting your online presence? Contact us, and we’ll handle it for you!web3.js
Mobile App DesignWeb DesignApp DesignWebflowWeb3FigmaSmart ContractBlockchainLogo DesignWeb DevelopmentPHPNFTJavaScriptWordPress - $80 hourly
- 0.0/5
- (0 jobs)
Hi, Dear I am a passionate and skilled Blockchain Developer offering 5 years of relevant experience and a proven track record of success in achieving extraordinary results. With a strong attention to detail and accuracy and the important ability to function well in a team setting, I am looking for a Blockchain Developer job within a forward-moving company and I will contribute to great projects and communities. Work experience: - Participated in several blockchain projects and team work. - Collaborated with colleagues from other departments and participated in the creation and testing of blockchain software applications. - Finishing all assigned projects within budget and schedule.web3.js
EthereumECMAScript 6BitcoinBlockchainSolidityLinuxSmart ContractTruffleC++Node.jsRustReactGolangVue.js - $35 hourly
- 0.0/5
- (0 jobs)
Seasoned blockchain developer with years of experience in building complex smart contracts and DApps. Have worked on some of top-tier Defi and NFT projects and helped them to write bulletproof smart contracts and did internal security audit. Exceptionally motivated and a good team player who understands the importance of communication and collaboration in team work, and is driven to ensure the success of project. Expertise and experience in: - lending, swap, staking and yield aggregator platforms - generative, on-chain and gamifying NFT projects - smart contract development and audit - DApp and Web3 integration Looking for long term or potentially long term projects and relationships.web3.js
Blockchain DevelopmentEthereumBlockchainRustNode.jsSolidityDAppsSmart ContractReactBlockchain Architecture - $40 hourly
- 0.0/5
- (0 jobs)
I’m a developer with experience in building websites for small and medium sized businesses. Whether you’re trying to win work, list your services or even create a whole online store – I can help! I’m experienced in Solidity, Web3.js, React.js, Common Website development languages I’ll fully project manage your brief from start to finish Regular communication is really important to me, so let’s keep in touch!web3.js
BlockchainSolidityJavaScriptHTML5CSS 3ReactNext.js - $40 hourly
- 0.0/5
- (0 jobs)
Welcome to visit my profile! ★★★--“If you have a dream and try to do it then it will come true.”--★★★ I am a blockchain and smart contract developer, writing smart contracts, creating cryptocurrencies, and launching ICOs, with about 4 years of experience with solidity and smart contract development in the ethereum blockchain ecosystem. My expertise: - Writing smart contract logic code for pretty much anything you can think of. - Decentralized cryptocurrency exchange (DEX) - Front Running / Back-running Bots - DEX based trading bots for cryptocurrency - Binance smart chain development - Smart contract Audit - NFT, IPFS, ERC721, ERC1155 development - Token & Coin development - Staking, yield farming, lottery, prediction smart contractsweb3.js
Blockchain DevelopmentBlockchainSolanaSolidityDAppsSmart ContractGraphQLRustNuxt.jsMongoDBNext.jsNode.jsReactVue.js - $30 hourly
- 5.0/5
- (1 job)
I am a dedicated web developer who values 2 keys in my work: "Efficiency" and "Quality". I am here to serve all clients who want new and challenging products. I started web development in 2015 while studying computer science at university. I enjoyed coding and that's why I pursued a freelance career with confidence and passion for web development. In 2019, the rise of Blockchain technologies captured my interest, and with solid web development background, I quickly became a Blockchain Expert in this exciting field. Through experience in developing over 30 diverse web systems, I have honed my skills in React and Solidity, specializing in web and blockchain software developments. From SaaS, Ecommerce, ERP, CRM, Betting Systems, ICOs, STOs, Defi and NFT Marketplaces, I have successfully executed projects of varying scope and complexity. One of my recent accomplishments is the creation of "Bloktok", a Real Estate Investment System that allows customers to purchase shares of real estate as ERC20 tokens through ICO. Bloktok is an online platform serving the Chilean market, offering a seamless investment experience. Thank you for considering me as your web development partner. I look forward to contributing to your fuure projects and exceeding your expectations.web3.js
LaravelBlockchainNestJSExpressJSAngularVue.jsNext.jsReduxReactPHPSolidityNode.jsTypeScriptSmart Contract - $25 hourly
- 0.0/5
- (1 job)
📱Full-Stack Developer 💻 5+ years experience 👨💻Team Lead Services I Provide: 🖥 End-to-end web application development (frontend & backend) 🚀 Responsive UI/UX development using React, Angular, or Vue.js ⛓️ Backend development with Node.js, Express, or Python (Django/Flask) 🔗 API development and integration (RESTful & GraphQL) 💿 Database design and optimization (SQL: PostgreSQL, MySQL; NoSQL: MongoDB) ☁️ Cloud deployment and management (AWS, GCP, Azure) 🖇 Microservices architecture and serverless solutions ⏳Code reviews, debugging, and performance optimization 🛠 CI/CD pipeline setup for automated builds and deployments Skills: 🖼 Frontend: React, Angular, Vue.js, HTML5, CSS3, JavaScript, TypeScript ⚙️ Backend: Node.js, NestJS, Fastify, Express.js, Python (Django, Flask) 💿 Databases: MongoDB, PostgreSQL, MySQL 🧩 API Development: RESTful APIs, GraphQL ☁️ Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, CI/CD 🧑💻 Testing: Jest, Mocha, Cypress, Selenium 📊 Version Control: Git, GitHub, GitLab 📚Other Tools: Webpack, Babel, Nginx, Firebase About me: I’m a Full-Stack developer with a passion for building reliable, scalable, and efficient systems with 5+ years of experience. I bring a thoughtful, detail-oriented approach to every project Here’s what I bring to the table: ☘️ Problem-Solving: I love tackling complex technical challenges and turning them into practical solutions 🍎 Scalability: I design systems that grow with your business, ensuring long-term performance and stability ⚡️ Efficiency: My code is clean, optimized, and maintainable, making it easy for teams to build on. 🤷🏼🙋🏻♀️🙅♂️ Collaboration: I’m great at working with teams, communicating clearly, and ensuring alignment with project goals 🔒 Reliability: You can count on me to deliver on time, every time, with high-quality resultsweb3.js
ReactNext.jsFirebaseNestJSPostgreSQLExpressJSAmazon DynamoDBDockerRedisMongoDBMySQLTypeScriptJavaScriptNode.js - $66 hourly
- 0.0/5
- (0 jobs)
I am a blockchain developer with several years of hands-on experience in the crypto world. I have tons of experience with developing customized blockchain software solutions. I have experience with NFT marketplace, Defi, Dex, Wallet development, Token Creation, Token Distribution, Custom Token Rules, Forking coin, Exchange Trading, and Multi-Sig Wallets. I am familiar with Solidity, web3, Rust, Bitcoin, Ethereum, Tron, EOS, NFT(Ethereum and BSC), Audit Smart-Contract, and BSC- BINANCE-SMART-CHAIN. Also, I have rich experience with web app development using ReactJS, Redux, NodeJS, Python(Django), and AWS DevOps.web3.js
Blockchain DevelopmentSolidityNode.jsRustReact - $60 hourly
- 0.0/5
- (0 jobs)
Hi, I'm a full stack developer and I have 10 year of experience in website & Blockchain development. As you can see in my Upwork profile, I have rich experience. I can proudly express that I have been serving as a Blockchain Developer successfully for more than four years. - Blockchain ✔ Solidity, Smart Contract, NFT, Marketplace, Solana, Rust, Ether.js, Web3.js - Front-end skills ✔ React, Next.js Vue.js, Nuxt.js, Angular - Back-end and platform skills: ✔ JavaScript frameworks: Node.js, Express.js, Nest.js, etc. ✔ PHP frameworks: Laravel, CodeIgniter, WP, Shopify etc. ✔ Cloud Deployment: AWS, AWS Lambda, S3, Heroku ✔ API: RESTful API, Google API, Google Maps, Google Analytics, GraphQL ✔ DATABASE Skills: MySQL, PostgreSQL, MongoDB, etc. - Mobile application skills ✔ Django, Flask ✔ React Native, Ionic, Flutter You can see my education in the profileweb3.js
BlockchainSoliditySmart ContractNext.jsReactVue.jsExpressJSNuxt.jsAngularNode.js - $50 hourly
- 0.0/5
- (0 jobs)
Reliable, passionate, and experienced developer with a strong background in Blockchain, Web and mobile technology stacks. Highly motivated self - driven developer, who holds a strong passion for exploring emerging technologies such as Blockchain technologies. Regardless of how challenging a task, I will get it done. My first concern would become to satisfy your requirements and fulfill your idea. ✅ With 3+ years of ✔️ Experience in working with Blockchain architecture and frameworks. ✔️ Experience in developing smart contracts using Solidity. ✔️ Experience in DAPP development and interact with Ethereum blockchain platform. ✔️ Experience in working on modern MEAN Stack and MERN Stack. ✔️ Experience in working on web servers like Apache Tomcat, Jetty and application servers like Web logic, Tomcat to deploy code. ✔️ Experience in using Vue.js, Next.js, Angular.js on Front-End and Node.js, Golang, Python, .NET on backend. ✔️ Experience in Web Services Technologies like SOAP, REST, WSDL and UDDI and Service Oriented Architecture SOA. ✔️ Experience with Amazon AWS Cloud Services, (EC2, S3, EBS, ELB, Cloud Watch, Elastic, SNS, VPC, Cloud Formation, Route53) and managing security groups on AWS. ✔️ Experienc in MVC Architecture and Struts Framework. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Key technologies include but not limited to: ✔️ Blockchain Technology: Blockchain architecture, Smart Contract Development, DApp, Solidity, Truffle, Ethereum Chain, ERC20/23/223, NFT Marketplace, Web3.js, Ether.js ✔️ Web technologies: ReactJs, Redux, Angular, Vue.js, Bootstrap, HTML5, CSS3, Node.js, Wordpress, Laravel, Python/Django, Ruby on Rails, .NET ✔️ Databases: MongoDB, MySQL, PostgreSQL, Redis, MSSQL, Oracle ✔️ Application/Web servers: IBM Web Sphere, Apache Tomcat, BEA WebLogic 8.1, J Boss, HTTP Web Server ✔️ Cloud Platform: OSE3, AWS, Azure ✔️ Mobile techs: Objective-C, Swift, Java, Kotlin, React Native, Flutter ✔️ Programming language: Solidity, JavaScript, TypeScript, PHP, HTML/CSS/HTML5/CSS3, Java, Python, C/C++/C#, Swift, Object C, Rust, Go lang ✔️ Debugging Tools: Chrome Elements Inspector, Firebug, IE Tester ✔️ Version Controls: GIT, Github Desktop, SVN, CVS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✅ Always ✔️ I try to meet my clients' requirements and fulfill their idea completely. ✔️ I get ready to communicate with my clients. ✔️ I look forward to have long term friendship with my clients. ✔️ I regard the profit and loss of my clients as mine while working for them. ✔️ I don't want to get from clients more than what I work for them. ✔️ I wish my clients the best of luck.web3.js
ReduxReactVue.jsReact NativeLaravelDjango.NET FrameworkMongoDBNode.jsPythonEthereumBlockchainSmart ContractSolidity - $30 hourly
- 0.0/5
- (0 jobs)
Hi Thanks for visiting my profile. Self-taught blockchain developer specializing in smart contracts and E2E Dapps. I write, audit & deploy Solidity smart contracts for Ethereum & BSC networks for a variety of applications using different protocols(ERC/BEP). I create full-scale NFT Dapps including contract development(minting) using ERC-721 front-end (React) and intergration with Metamask, Etherscan, IPFS & Opensea. Fluent in JavaScript, Solidity, React, Tuffle & Web3, and the Open Zepplin library.web3.js
RemixEthereumBlockchainSoliditySmart ContractBinance CoinCryptocurrencyTruffleTailwind CSSExpressJSReactNext.jsTypeScriptMongoDB - $30 hourly
- 0.0/5
- (0 jobs)
I am an expert in smart-contracts development. Do you need to speak to the dev and be understood right away? You came to the right page. Years of experience in the Blockchain industry allowed me to get an understanding of the industry. ➊ I'm experienced in DEFI Crypto, Web3, Ethereum, and Binance Smart Chain. ➋ I'm experienced in Node.js, React.js, Typescript ➌ I’ll fully project manage your brief from start to finish. ➍ Fluent English allows me to keep us fine communication.web3.js
SolanaNode.jsCryptocurrencyEthereumBlockchainReactRustSolidity - $25 hourly
- 2.4/5
- (7 jobs)
Hello there! 👋 I'm a skilled and experienced Full Stack Developer ready to bring your digital projects to life. With a strong background in both front-end and back-end development, I possess a wide range of technical expertise to tackle any challenge that comes my way. 🚀 Ready to take your project to the next level? Let's collaborate and create something remarkable together! 📊 Here are some benefits you can expect when working with me as your Full Stack Developer: 1. 🧑💻 Technical Expertise: With my comprehensive understanding of both front-end and back-end development, you can rely on me to handle the entire development stack. From crafting elegant user interfaces to implementing complex server-side functionalities, I have the skills and knowledge to deliver end-to-end solutions. 2 . 🎯 Quality Deliverables: I have a strong commitment to delivering high-quality work. I pay meticulous attention to detail, adhere to industry best practices, and follow coding standards to ensure clean and maintainable code. By doing so, I strive to create robust and scalable applications that meet your requirements and exceed your expectations. 3. 🦸Effective Problem Solving: I approach every project with a problem-solving mindset. I enjoy tackling challenges head-on and finding innovative solutions. Whether it's optimizing performance, resolving technical issues, or implementing new features, I'm dedicated to finding the most efficient and effective solutions for your project. 4. 🌎 User-Focused Approach: I understand the importance of creating exceptional user experiences. By leveraging my expertise in front-end development and UI/UX principles, I prioritize user-centric design and seamless interactions. I aim to build intuitive interfaces that engage users and keep them coming back for more. 5. 🤝Long-Term Support: My commitment to your project doesn't end with the completion of development. I offer ongoing support and maintenance to ensure that your application runs smoothly and remains up-to-date. Whether it's bug fixes, performance enhancements, or future updates, I'll be there to provide reliable support even after the project is delivered. 🗣️️If you're looking for a dedicated Full Stack Developer with expertise in both front-end and back-end development, don't hesitate to reach out. Click the "Hire Now" button to start our journey towards success. 🔥I'm excited to hear about your project requirements and discuss how I can contribute to its success. Let's build something amazing together!🔥 Here are some of the technologies and tools I am proficient in as a Full Stack Developer: 🌅 Front-End: - HTML5, CSS3, JavaScript - React, Vue.js - Next.js, Nuxt.js - TypeScript, jQuery - Responsive Web Design - Bootstrap, Material-UI, Tailwind, Vuetify, Antd Design 🚪 Back-End: - Node.js, Express.js, Nest.js - PHP, Laravel, Symphony - RESTful APIs, GraphQL 🧱 CMS: - WordPress, WooCommerce - Shopify - Opencart 💡 Databases: - SQL (MySQL, PostgreSQL, SQLite) - NoSQL (MongoDB, Firebase, Redis) - Database Design and Optimization 🌐 Cloud and Deployment: - Amazon Web Services (AWS): EC2, S3, RDS, Lambda - Docker - Serverless Architecture - Continuous Integration and Deployment (CI/CD) - Git, GitHub, Bitbucket, GitLab 🔋 Other Technologies: - JSON, XML - WebSockets - Authentication and Authorization (OAuth, JWT) - Unit Testing, Integration Testing - Performance Optimization - Agile Development (Scrum, Kanban) - DevOps Practices This is not an exhaustive list, but it provides an overview of the technologies and tools I am well-versed in. I continuously stay updated with the latest trends and technologies in the industry to ensure that I can leverage the most suitable technology stack for your project's requirements. Please note that specific projects may require different technology stacks, and I am adaptable to various tech environments. Feel free to discuss your project's specific requirements, and together we can determine the best technology stack to achieve your goals.web3.js
NestJS DevelopmentSolidityElasticsearchMySQLNode.jsPHPJavaScriptNuxt.jsVue.jsReactSymfonyWordPressLaravelDocker Want to browse more freelancers?
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