Hire the best Smart Contracts Developers in Kharkiv, UA

Check out Smart Contracts Developers in Kharkiv, UA with the skills you need for your next job.
  • $35 hourly
    I'm experienced software engineer from Ukraine. My expertise include: - development of platforms based on blockchain technologies (nft marketplaces, dapps, bridges, cryptocurrency payment integration, custodian wallets etc.) - development of scale systems - development of web apps Tech stack: - Golang, C++, Python, Solidity (ERC20, NFT (ERC721, ERC1155)) - Postgresql, Mysql - EVM based blockchains, stellar
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    Blockchain Architecture
    Ethereum
    Blockchain
    NFT Marketplace
    Solidity
    Smart Contract
    Blockchain Development
    DApps
    NFT
    Docker
    Golang
    Kubernetes
  • $80 hourly
    🔥 Greetings and welcome to my profile! 👨‍💻 CTO/Founder of RedDuck | Blockchain and Smart-Contracts Development Company. 🥇 redduck.io won the Blockchain Hackathon in 2022, being personally recognized by Vitalik Buterin, the founder of Ethereum. As the CTO and founder of RedDuck, I lead a team of 30+ highly qualified devs who deliver cutting-edge solutions for Web3 and Blockchain projects. With over 4 years of work experience in software engineering, business analysis, my mission is to empower clients with innovative and secure solutions for DeFi, Smart Contracts, and Blockchain. I am passionate about exploring new possibilities and challenges in this rapidly evolving field. 🦾 SKILLS: ◉ Blockhain Technologies: Ethereum – ERC-20, NFT (ERC-721, ERC-1155), TheGraph, Solidity, Tenderly, Moralis, Infura, Alchemy, Hardhat, Decentralized Applications (DApps), Waffle, TypeChain, Web3.js, Ethers.js, Golang, Oracles, Hyperledger Fabric, Chainlink, Uniswap, Layer 2. ◉ Smart Contracts: Solidity, Chaincode. ◉ Front-end: TypeScript, JavaScript, React.js, Next.js, Vue, Svelte, Redux, Cypress, Mocha, Ethers.js, Web3.js, Wagmi.js, Firebase. ◉ Back-end: Node (Next.js, Nest.js), Golang, C++, Rust, Azure. ◉ Cryptography and Security: Public/Private Key Infrastructure, Encription, Ethernaut - OpenZeppelin. API Integration: REST API, WebSocket, GraphQL. ◉ Databases: Mongo, MySQL, Supabase, Firebase database. ◉ DevOps: Docker, CI/CD, Ubuntu, sh Scripts, make Scripts. 🤝 Trust us to be your partner in achieving blockchain excellence for your next project. Contact us today to discuss how we can help bring your vision to life.
    vsuc_fltilesrefresh_TrophyIcon Smart Contracts
    Smart Contract
    DApp Development
    Tokenomics
    Cryptocurrency Forking
    DApps User Experience
    Solidity
    Crypto Wallet Development
    Smart Contract Development
    Ethereum
    Blockchain, NFT & Cryptocurrency
    Blockchain Development
    Blockchain Platform
    Web3
    Blockchain
    NFT
  • $40 hourly
    I'm a full stack Blockchain developer with more than a year experience of writing smart contracts and building decentralized applications. Given the new trends and the ever-evolving industry, I always learn something new and stay up to date with the latest information. That's why I guarantee that I will provide you with the most efficient solution. My skills: - Excellent understanding of blockchain technology - Proficiency in at least one high-level programming language; - Solid grasp of cryptography and security principles; - Experience with distributed systems and peer-to-peer networking; - Knowledge of smart contracts; - Familiarity with algorithm and data structures ✅ Blockchain framework: Ethereum, Solidity, Truffle, Metamask, Infura; ✅ Skilled in C++, JavaScript, Solidity, Python, and Java ✅ React/Next JS/ Typescript My work expertise: - Smart contacts creation; - Blockchain solutions: ERC20 and ERC223 standard token creation using the latest secure version of Solidity code; - Building different types of decentralised applications including DeFi, NFT, Staking, Interoperability (bridges), ICO. I’m here to help you to create your next Smart Contract, launch Token or NFT. Let's discuss the details and start working together for the most effective result!
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    React
    Next.js
    Smart Contract
    Solidity
    Blockchain Architecture
    Blockchain
    C++
    Blockchain, NFT & Cryptocurrency
    Blockchain Development
    Solana
    Ethereum
    JavaScript
  • $40 hourly
    With over four years of hands-on experience in modern front-end frameworks, I am confident that I have the right mix of technical skills, creativity, and innovation to contribute to clients project. I have extensive experience with HTML, CSS, JavaScript, TypeScript and UI/UX design. I have worked with several front-end frameworks such as ReactJS, AngularJS, Bootstrap, and VueJS, gaining mastery in each of them. My expertise in these frameworks has allowed me to develop responsive, user-friendly, and interactive web applications that are tailored to meet the specific needs of my clients. I have also worked on a range of projects, from building responsive web pages for startups to developing complex e-commerce platforms for established businesses. I thrive in a team-oriented environment and collaborate well with other developers, designers, and stakeholders to deliver high-quality solutions. In addition to my technical skills, I possess excellent communication and problem-solving skills, which make me an effective team player. I am highly motivated, reliable, and able to work under pressure to meet deadlines. Thank you for considering my profile. I look forward to discussing my candidacy with you. Sincerely,
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    Web Scraping
    Django
    Python
    Smart Contract
    Solidity
    styled-components
    Angular
    JavaScript
    TypeScript
    CSS
    Vue.js
    HTML
    Bootstrap
    Front-End Development
    React
  • $35 hourly
    It’s time to employ a different technique for medical, educational and assisting businesses purposes. Cyborgs.Pro team was one of the first in Ukraine who started using AR technologies (ARKit, ARCore and Vuforia). ★★★★★ 4,9 Stars Feedback Score based on 31 reviews ★★★★★ $100k+ earned via Upwork only ★★★★★ Top Rated ★★★★★ 100% Agency Job Success Score Greetings, I am fully independent and client-oriented Unity 2-3d (C#), AR (ARKit/ARCore & Vuforia) and Android (Java) app/game developer. As part of my dream, I created and run Cyborgs.pro, a mobile app and game development studio that pushes boundaries, breaks down barriers and makes dreams come true. We are a passionate team of UI/UX design, 3D design, Unity game development, Unity AR/VR development, full-stack Android and iOS development, business analysis, project management, and QA engineering. We specialize in developing exciting mobile apps and addictive games in a variety of genres. From casual puzzles to immersive virtual reality adventures, we have the skills and experience to bring any concept to life. We are: • Highly experienced Unity Developers • Strong experienced AR\VR Developers with depth knowledge ARFoundation (ARKit\ARCore) &Vuforia • Advanced 3D modeling, texturing, rendering, rigging and animation experience with a good knowledge in Maya, Zbrush, Substance painter, Blender. • Proficiency in C#, C++, Java, Kotlin programming languages • Experience working with Android, iOS, Windows and WebGL builds • Experience developing native Android apps in Android Studio, Eclipse. • Experience with blockchain platforms and protocols (e.g. Ethereum, Polygon). • Experience with trading platforms, wallets, and related NFT tools (e.g. OpenSea, MetaMask) • Experience publishing to Google Play, App Store, Amazon AppStore. • Experience with GitHub, Google Cloud Storoge, MySQL, PostgreSQL, SQLite. • Experience with third-party frameworks and tools - AdMob, Firebase, Google maps, Photon, Skillz and others. We believe in the power of collaboration. When you choose Cyborgs.pro, you become part of our creative family. We value your ideas, goals and aspirations and work closely with you to turn your vision into an exciting reality.
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    Smart Contract
    NFT
    Metaverse
    Game Design
    Game Development
    Mobile App Development
    Android SDK
    Augmented Reality
    Android App Development
    Android
    Virtual Reality
    C#
    Unity
  • $80 hourly
    I am innovations enthusiast, so I love very much such fields of information technologies as machine learning, bitcoin(blockchain), big data, information security, and simple programming. Skills: - Good knowledge of Python program language. (Also some Java and C++) - Cryptocurrency protocols. - Linux friendly. - DeepLearning(Tensorflow, Keras) - Sklearn Open for yours offers.
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    Django
    Smart Contract
    Ethereum
    Blockchain Development
    Cryptography
    Bitcoin
    Python
  • $25 hourly
    I'm a web developer with 3+ years of experience with Solidity, Web3.js, React.js, HTML, JQuery, CSS/SCSS and more. I can help you with writing smart contracts on the Ethereum platform, automated testing, deployment and upgrades, and integration with your backend and frontend. My strong point is collaboration with product team members to implement new feature developments. In addition I was involved in optimization of images, code, and cross-browser compatibility, increasing the time of fast page response. You'll get all the things you expect, such as excellent professional service and fast turnaround times. Here is the list of my main skills: Basic: ✔ HTML ✔ CSS ✔ JavaScript ✔ jQuery ✔ Ajax Technologies: ✔ SASS ✔ React.js ✔ Bootstrap ✔ Parallax.js ✔ Materialize ✔ Pre-render SPA plugin Tools: ✔ Adobe XD ✔ Adobe Illustrator ✔ Adobe Photoshop ✔ Adobe After Effects ✔ NPM ✔ Yarn ✔ WebPack Other Knowledge​: ✔ UI/UX ✔ Parallax ✔ Pixel Perfect ✔ CSS Animation ✔ SVG Animation ✔ Material Design ✔ Adaptive Design Soft Skills: ✔ Teamwork ✔ Leadership ✔ Self-motivation ✔ Communication
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    Solidity
    Solidify
    Ethereum
    Smart Contract
    Redux
    JavaScript
    SQL
    HTML
    CSS
    Git
    React
    ExpressJS
    MongoDB
    SCSS
    Bootstrap
  • $30 hourly
    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.
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    Laravel
    Blockchain
    NestJS
    ExpressJS
    Angular
    Vue.js
    Next.js
    Redux
    React
    PHP
    Solidity
    web3.js
    Node.js
    TypeScript
    Smart Contract
  • $40 hourly
    Full stack | Blockchain Developer As a full stack software developer, I bring expertise in blockchain, AI and full-stack development with 5+ years experience. In addition to my proficiency in software development, I possess a comprehensive understanding of scaling solutions aimed at meeting the dynamic demands of business operations. 💖 Blockchain development ✔DeFi, DAOs, DEX, NFT mint/marketplace/staking ✔Proficient in smart contract creation for various purposes(Tokens, NFTs, DAOs, Flash Loans, Arbitrage, and so on) ✔Experienced in NFT marketing ✔Proficiency in developing DApp for diverse use cases ✔Knowledgeable in EVMs including Solidity, Yul, and Vyper ✔Familiarity with Para chains development with Rust, Pact, Substrate, and Haskell ✔Skilled in Web3.js for seamless interaction with blockchain networks. 💖Web development ✔Front-end Expertise: I possess a mastery of contemporary front-end technologies including HTML5, CSS3(inclusive CSS Grid and Flexbox, JavaScript(ES6+) My expertise is crafting responsive, interactive and aesthetically pleasing user interfaces, ✔JavaScript Framework Proficiency Specializing in renowned JavaScript frameworks such as React/Next, Angular, Svelte, and Vue/Nuxt ✔ Back-end Proficiency With expertise in server-side scripting, I excel in Node.js/Express, Python, Django, Flask, Ruby on Rails, Laravel. Robust APIs and implement intricate business logic to drive application functionality. ✔ Database Mastery Relational Databases ( MySQL, PostgreSQL) and NoSQL databases(MongoDB, Redis) ✔ API Integration Experienced in integrating third-party APIs and web services with seamless integration of payment gateways, social media APIs and more. 💖AI App development ✔ Python, PyTorch, hugging face, TensorFlow, Keras, OpenCV, PyQt ✔ LLMs such as GPT ✔ Image classification and Image recognition, generation ✔ Deep learning and Machine learning I am excited to collaborate and contribute to projects that seek innovation and excellence. Thank you.
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    AI App Development
    Django
    PHP
    Laravel
    Nuxt.js
    Vue.js
    Next.js
    React
    Business Consulting
    Business Analysis
    ICO Marketing
    NFT Marketing
    Smart Contract
    Ethereum
    Crypto Marketing
  • $80 hourly
    Summary: A highly motivated Blockchain Engineer with a robust blend of theoretical knowledge and hands-on development expertise. With a proven track record in mastering and implementing cutting-edge technologies, I pride myself on ensuring client satisfaction and fostering long-term relationships. My experience spans across various blockchain platforms and back-end technologies, making me a versatile asset in the ever-evolving tech landscape. Education: KHARKIV POLYTECHNICAL INSTITUTE Master’s degree in Software Engineering SEP 2009 - JUN 2014 Languages: Ukrainian: Native Speaker Russian: Native Speaker English: Upper-Intermediate Technical Proficiency: Blockchain Technologies: Ethereum, Solana, Solidity, Rust, Hadhat, NodeJS, Web3JS, VueJS, and more. Back-end Technologies: Firebase, Kafka, Go base, Confluent-kafka, Akka, Cassandra, and more. Database Management: PostgreSQL, MongoDB, MySQL, Redis. Tools & Platforms: Vs Code, IntelliJ IDEA, WebStorm, Atom, Jenkins, Docker, Git, SVN, Jira, Trello. Projects: ChromaWay: Blockchain technology company focused on relational blockchain architecture. Roci.fi: A DeFi primitive for permissionless under-collateralized lending on Ethereum. Highvibe Network: Blockchain-based ecosystem for immersive experiences and multidimensional learning. BigTaurus: Crypto and Forex training platform with Token BGT CLUB. Korporatio: Merging International Business Company (IBC) and Decentralized Autonomous Organisation (DAO) to form Smart Companies. ... [and more]
    vsuc_fltilesrefresh_TrophyIcon Smart Contracts
    MongoDB
    Hibernate
    Scala
    Akka
    Java
    Play Framework
    Golang
    Node.js
    TypeScript
    Stellar
    Solana
    Rust
    Web3
    Ethers.js
    Smart Contract Development
    Smart Contract
    Hardhat
    Ethereum
    Blockchain
    Solidity
  • $30 hourly
    Passionate Blockchain developer with 5+ years of experience in developing DApps using a wide range of skills like Solidity, Python, JavaScript, TypeScript etc. Always be creative to solve real-world problems and ready to learn new things.
    vsuc_fltilesrefresh_TrophyIcon Smart Contracts
    React
    Bitcoin
    Web3
    Cryptocurrency
    Crypto Wallet
    DeFi
    Blockchain
    Ethereum
    Solidity
    NFT
    DApp Development
    Smart Contract
  • $30 hourly
    Passionate Blockchain developer with 5+ years of experience in developing DApps using a wide range of skills like Solidity, Python, JavaScript, TypeScript etc. Always be creative to solve real-world problems and ready to learn new things.
    vsuc_fltilesrefresh_TrophyIcon Smart Contracts
    React
    Bitcoin
    Web3
    Crypto Wallet
    DeFi
    Blockchain
    Ethereum
    DApp Development
    Smart Contract
  • $30 hourly
    Passionate Blockchain developer with 5+ years of experience in developing DApps using a wide range of skills like Solidity, Python, JavaScript, TypeScript etc. Always be creative to solve real-world problems and ready to learn new things.
    vsuc_fltilesrefresh_TrophyIcon Smart Contracts
    React
    Bitcoin
    Web3
    Cryptocurrency
    Crypto Wallet
    DeFi
    Blockchain
    Ethereum
    Solidity
    NFT
    DApp Development
    Smart Contract
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