Hire the Best web3.js Freelancers
in Ukraine

Full-stack engineer with 6 years of experience building production web, mobile, AI, and Web3 products. Recently focused on implementing RAG systems, AI orchestrations, and data-heavy architecture. I can help with: • React/Next.js frontend development • Web3/blockchain integrations • AI features, LLM workflows/integrations, RAG systems, embeddings • Dashboards and portfolio tracking interfaces • Performance fixes, refactoring, and bug fixing

Hey, I'm an experienced 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with over 6 years of professional experience. Main technologies stack: ✔ Languages: Javascript, Typescript, PHP. ✔ Frontend: React, Redux, Next.js, Remix, Moralis, Web3.js, Ether.js, Styled Components, Material UI, TailwindCSS, HTML, CSS, and its popular preprocessors SASS/LESS. ✔Backend: Node.js, Express.js, Nest.js, GraphQL, ElasticSearch. ✔Blockchain: Solidity, Move (Aptos). ✔Databases: Mongo, Postgres, MySQL, Firebase. ✔Deployment tools: Docker, Docker Compose. ✔Cloud tools: Amazon, Heroku, Vercel, AWS Amplify. ✔CMS: WordPress, Yii2, Laravel, Modx. ✔Version Control: Git, Bitbucket. I have worked on many different projects and have shown myself to be a responsible developer with strong technical skills. 𝐋𝐚𝐭𝐞𝐬𝐭 𝐫𝐞𝐟𝐞𝐫𝐞𝐧𝐜𝐞 𝐨𝐟 𝐦𝐲 𝐰𝐨𝐫𝐤 𝐲𝐨𝐮 𝐜𝐚𝐧 𝐬𝐞𝐞 𝐛𝐞𝐥𝐨𝐰:

🙋‍♂️ Hi, I'm Diana, and I am an expert in front end development, with 5+ years of experience, Master’s degree in Computer Applications (MCA), and huge experience in DeFi and Web3 projects development. I specialize in front end web development, with a focus on React.js. I also have extensive experience in developing custom solutions with animations and advanced charting additions. My expertise in developing responsive and intuitive user interfaces using JavaScript and TypeScript together with my extensive problem-solving abilities, attention to detail, and writing clean and understandable code always result in high-quality solutions that meet clients requirements. 🎯Below is a full list of my professional services: - Custom Websites - Decentralized Applications (DApps), DeFi - UI interfaces for Smart Contracts - Advanced charting - eCommerce - PixelPerfect, Retina-Ready development - Landing Pages - Converting designs into functional websites from Figma / Photoshop - Page Speed Optimization - SEO friendly websites 🛠 Tech Stack: - Programming languages: JavaScript, TypeScript - Web: HTML5, CSS3 - Frameworks/Libraries: React, Redux, NextJS, ChartJS, Web3, Jekyll, Bootstrap, jQuery - Preprocessors/Compilers: SASS, SCSS, Babel - Patterns/Methodologies: Design Patterns, Scrum, Responsive Web Design - Testing: Jest, Testing library - Others: Git, Webpack If you're looking for a dedicated and experienced front-end developer who can convert your ideas to real projects, feel free to reach out to me. I am confident that my skills and reliability will contribute to the success of your current and future projects. Let's create exceptional web solutions together!

🌟 Your Trusted Partner for Web & Web3 Development 🌟 Hi, I’m Viktor, the founder of Vizzwo, a Ukraine-based company specializing in creating modern Web and Web3 solutions. We provide end-to-end product development, covering every stage: ✅ Design creation ✅ Development ✅ Deployment on AWS or/and launching on the blockchain mainnet 💻 Our Technology Stack: 🚀 Frontend Development: - Vanilla JavaScript - ReactJS - Next.js - TypeScript 🔧 Backend Development: - Golang - PostgreSQL / Redis / MongoDB - Solidity ☁️ Infrastructure & DevOps: - AWS - Docker, Kubernetes - Terraform ❓ Didn’t find the technology you’re looking for? No worries! Just send me a message—we likely have the expertise you need. ✨ Let’s bring your ideas to life. Whether it’s a modern website, a high-performance application, or an innovative Web3 solution, Vizzwo is here to help. 📩 Message me today, and let’s get started!

Full stack web developer| Innovative Software Development Solutions | Web, Mobile, and Blockchain 🚀 Welcome! I create top-notch web, mobile, and blockchain applications that will change ideas into impactful solutions. Be it a sleek website, a strong mobile app, or a secure blockchain ecosystem, I can help bring your vision to life. What I Can Do: I am fully equipped to take on every challenge when it comes to web development and blockchain projects, including but not limited to the construction of high-performance platforms to craft secure decentralized applications. Technology Stack Frontend Development: React, Next.js, TailwindCSS, Material UI Backend Development: Node.js, Express, Nest, Django, Flask Mobile Development: React Native, Flutter, Kotlin, Swift Databases: MySQL, PostgreSQL, MongoDB, Redis Blockchain: Solidity, Web3.js, Ethers.js, Smart Contract Development Cloud & DevOps: AWS, Docker, CI/CD Pipelines I am ready to accept any challenge and deliver results that are nothing short of outstanding. Let's collaborate to bring your ideas to life and create solutions that exceed expectations-reach out today and let's get started! 🌟

I’ve helped my clients launch and improve products used by thousands of users, reduce load times by 30-50%, and deliver features that directly supported revenue-generating flows. I work primarily with React, Next.js, TypeScript, and modern CSS, building production-ready interfaces that are fast, reliable, and easy to maintain. I’m comfortable working across the full stack when needed, connecting frontend logic with APIs, databases, and real-world product workflows. Alongside that, I have a strong interest in Web3 and blockchain systems. I’ve worked with wallet integrations, smart contract interactions, and dApp frontends, and I actively follow developments around EVM, L2 solutions, and scaling technologies. For me, Web3 is not separate -- it’s an extension of building solid, real-world applications. I value clear communication, ownership, and thoughtful implementation. If you’re building something meaningful and need a developer who thinks beyond just code -- let's have a chat.