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Clients rate Blockchain developers
Rating is 4.6 out of 5.
4.6/5
based on 172 client reviews
  • $50 hourly
    • 4.9/5
    • (37 jobs)
    🌟 Throughout my career, I have guided teams to innovation and excellence. I have a proven track record of crafting robust system architectures that not only meet current demands but also anticipate future challenges. My expertise lies in translating complex technical concepts into tangible results, ensuring seamless collaboration and communication across diverse departments. 🤝 My collaborative nature extends beyond technical boundaries, as I actively engage with various departments to ensure a holistic approach to business strategies. This cooperative spirit has proven invaluable in identifying opportunities for synergy, enhancing overall efficiency, and achieving collective success. I find great satisfaction in contributing not just as a technical expert but as a strategic partner who considers the broader implications of decisions on the entire business landscape. 🚀 In summary, my journey reflects a commitment to technical excellence, leadership, and a holistic approach to business. I am not just a developer; I am a visionary collaborator who thrives on transforming challenges into opportunities, ensuring sustainable success for both clients and the organization. 🛠️ My expertise spans a wide array of technologies, including Node.js, TypeScript, and Golang. I excel in crafting scalable, efficient solutions that harness the power of cutting-edge frameworks like Express.js, React.js and Next.js.
    Featured Skill Blockchain
    Tailwind CSS
    Docker
    Redis
    Microservice
    API Development
    MongoDB
    PHP
    JavaScript
    MySQL Programming
    Node.js
    RabbitMQ
    React
    Laravel
  • $45 hourly
    • 5.0/5
    • (9 jobs)
    Hello, I'm a Full Stack Software Engineer with 10+ years of industry experience, a great Portfolio with a lot of High Quality work, and the fastest Support and very familiar with .NET. I use cutting-edge technology & best practices to create custom sites involving: Website development, Responsiveness, Optimization, Customization, and Integration of demand. I am a Experts in HTML/CSS, PHP, React.js, Angular, Vue.js MySql, .NET, Python, Rails, Laravel, JS, Node JS, Shopify, E-commerce, and WooCommerce. Talented at Blockchain include EVM, Solana, Near, Cardano etc I have skills to manage Hosting, VPS, Linux, AWS, Corporate Networking, Support & Maintenance. WHY HIRE ME? ✓ 1200+ website completed ✓ 120+ mobile apps and games completed ✓ 650+ happy clients worldwide ✓ Full Stack 24/7 support ✓ High quality works with better revision ✓ SEO, Speed, and Security optimised solutions ✓ Fast turnaround within your deadline Please contact me for discussions and to see my portfolio. Kind Regards!
    Featured Skill Blockchain
    Web3
    Solidity
    Vue.js
    Angular
    React
    Rust
    Python
    Web Application
    CSS
    HTML
    PHP
    JavaScript
  • $30 hourly
    • 5.0/5
    • (5 jobs)
    👨‍💻3yrs+ Experience As a blockchain engineer with 3 years of experience, I have worked on EVM platforms such as Ethereum, BSC, zkSync, Arbitrum, Optimism, and Polygon. I also worked on creating full-stack DApps. My expertise includes: 🔹 ERC-20 tokens 🔹 ERC-721 | ERC-1155 NFTs 🔹 NFT marketplaces 🔹 ICO | presale launches 🔹 DEXs 🔹 Staking contracts 🛠 I've developed Smart contracts, and DApps for various industries, including projects such as NFT Marketplace, Decentralized Exchange, Yield Farming, and Reflective token. 🤝 I have excellent communication and collaboration skills to deliver the best results on time and budget. As a blockchain development expert, I can significantly contribute to your organization's success by leveraging the power of blockchain technology to achieve impressive results. 🚀 Allow me to contribute my expertise and experience to your project, and together, we can accelerate your success.
    Featured Skill Blockchain
    Crypto Asset
    Cryptocurrency Forking
    Blockchain, NFT & Cryptocurrency
    DApps
    Decentralized Exchange
    NFT Marketplace
    Crypto Exchange Platform
    Blockchain Development
    Layer 2 Blockchain
    Smart Contract
    Ethereum
    Solidity
    DeFi
    Web3
  • $55 hourly
    • 5.0/5
    • (14 jobs)
    🔝 TOP 10% of Upwork Agencies 💯 Job Success ⭐️ 5-Star Rating 🏆 Hackathon winners 🔟/🔟 Smart Contracts Rating Audited by Hacken ✅ ⭐️⭐️⭐️⭐️⭐️ "We look forward to continuing our collaboration on the next phase! Yevhen, Dexola, and the rest of the team have been an absolute pleasure to work with. Very knowledgeable and responsive, would highly recommend!" ⭐️⭐️⭐️⭐️⭐️ "It was a pleasure working with Yevhen. He is highly skilled and very professional. Will definitely work with him again. Highly recommended." As a CTO with over 10 years of experience and 45 blockchain-based projects completed, I have a proven track record in delivering high-quality, scalable, and secure web solutions. My expertise lies in blockchain and Web3 technologies. I am passionate about building innovative blockchain and Web3 products that solve real-world problems. Furthermore, I am committed to working closely with my clients to understand their needs and ensure that their projects are a success. 📍 Blockchain & Web3 Development: - DAO, DeFi and GameFi solutions - EVM Chain (Ethereum/ETH) - Solana - Solidity, Rust 📍 Smart Contracts: - NFT Smart Contract - Staking, Minting, Airdrops - Security Smart Contracts Audit 📍 Full-Stack Development - Node.js, React.js, web3.js, Vue.js, TypeScript etc. - API Integration - Building & Deploying Scalable and Secure Applications 📍 Trading & Automation: - Decentralized Exchange (DEX/CEX) - Trading Bots (bonding curve keys, volume bot, telegram bot) - Crypto Casinos 📍 Integration & Bridges: - Wallet Integration (WalletConnect, Coinbase Wallet, etc.) - Blockchain Bridges ⌛️ Proven success in delivering projects on time and within budget 🙌 Excellent communication and interpersonal skills Let's hop on a call and discuss how I can make your project happen.
    Featured Skill Blockchain
    AI Chatbot
    Blockchain, NFT & Cryptocurrency
    Cryptocurrency
    React
    Ethers.js
    Web3
    DeFi
    Smart Contract Development
    Solana
    Solidity
    Node.js
    Ethereum
    Smart Contract
    web3.js
  • $50 hourly
    • 5.0/5
    • (62 jobs)
    Want to work with someone who meets the deadlines and delivers what he promises? User friendly SaaS UI/UX design that serves your business needs. Get quality designs fast and stress free! Hello! I am Viktor, a UI/UX and product designer also experienced with logo and graphic design. My design experience makes me great fit for both early stage and established companies that need a ⭐⭐⭐⭐⭐ designer who to trust! Designing websites and SaaS tools that look modern are intuitive to use and earn money! Framer Expert ✅ Webflow Certfied ✅ More than a decade of experience in branding, web design, product design, and UI/UX design. Experienced with a diverse range of clients, from established companies to early-stage startups. What you will get: ✅ Quality modern intuitive design ✅ Clear and speedy communication ✅ Your business needs will be met ✅ Cost effective solutions My expertise include: ♠️ Web design (from simple landing pages to complex web applications) ♠️ UI/UX design ♠️ Digital product design ♠️ Dashboard designs ♠️ SAAS ux/ui design ♠️ UI kits and digital styleguides ♠️ Mobile app design or mobile web apps ♠️ Conversion optimization ♠️ Prototyping (both click through and complex interactions and animations) ♠️ Creative direction ♠️ Branding including logo and CVI / brandbook design ♠️ Framer & Webflow no-code development Experience in following fields: ♠️ Finance (fin-tec, crypto) ♠️ Web 3 ♠️ Climate Tech ♠️ Food ♠️ Automotive ♠️ Telecom ♠️ Healthcare ♠️ Industrial design and production ♠️ Real Estate ♠️ Fashion ♠️ Transportation ♠️ Start-up ♠️ Modern and fine arts Tools I use daily: 🎨 Figma 🎨 Framer 🎨 Adobe Creative cloud (Photoshop, Illustrator) I can also work with 🎨 Sketch 🎨 Invision 🎨 Adobe XD 🎨 Indesign 🎨 Aftereffects 🎨 Rive I can help you also with following CMS or website builders: 🎨 Framer 🎨 Webflow 🎨 Wordpress 🎨 Squarespace and Wix (being honest I don´t prefer Squarespace and W) Occasionally I make create things in ⚙️ html/css and javascript ⚙️ GSAP / Tweenmax animation library Let's get to work? I can work and consult as: UI/UX Designer, UX, UI, User Experience, User Interface, No-Code Web Development, Branding, Logo design, Brand identity, CSS, HTML, User-Friendly, Conversion-Focused, Startup Website, Web Dashboard design, Usability, Web Designer, Product Page Design, CRO, Conversion Rates, Web App Design, Mobile App Design, UX Reviews.
    Featured Skill Blockchain
    Product Design
    Prototype
    Tilda
    Motion Design
    Web3
    Wireframe
    UI Animation
    User Experience Strategy
    UI/UX Prototyping
    Game UI/UX Design
    Web Design
    UX Research
    GUI Design
  • $40 hourly
    • 4.9/5
    • (3 jobs)
    Fullstack Web3 developer with experience in creating different types of dApps. My goal is to build the best web3 applications using the latest technologies. I have a good understanding of EVM blockchains and know how to solve any type of web3 challenge. I intend to explore new technologies and deliver value to people.
    Featured Skill Blockchain
    Web3
    web3.js
    Blockchain Development
    Redux
    PostgreSQL
    ExpressJS
    Bootstrap
    MongoDB
    TypeScript
    Node.js
    Next.js
    Three.js
    JavaScript
    React
  • $60 hourly
    • 5.0/5
    • (2 jobs)
    I am the team leader of a team of professional blockchain developers offering a wide range of services in the blockchain development and consulting segment. I am also the founder of AztraTech, an outsourcing agency specialising in blockchain development and consulting services. Areas of expertise of my expertise and our team: 🟢Development Smart contracts development Cryptocurrency wallet development Private, public, and hybrid blockchain development Trading platform development Decentralized application (DeFi, DEX, DAO, and others) development Mining solutions Blockchain gaming (GameFi development) NFT marketplace development Hyperledger infrastructure IDO & ICO tools Tokenization of businesses Integration of storage and cryptocurrency transaction functions into your products 🟢Consulting Evaluating blockchain use cases Determining the suitability of blockchain solutions Optimising business processes using blockchain technology Blockchain Architecture Implementing the right blockchain attributes Opening new customer channels using blockchain Transforming your business towards a data-driven business Digitalising your business A customised business plan to integrate blockchain technology into your business; 🟢Other Outstaffing a blockchain development team Outsourcing blockchain application development for B2B applications Outsourcing of web and mobile development Smart contract auditing Support and maintenance of existing projects 🤝 Why me ? - Experience in blockchain technologies and research - Myself and my team combine development, design and management skills to deliver and support projects of any complexity. - We deliver high quality blockchain solutions that meet the needs of our clients - Advice on blockchain integration and usage to help them realise their business goals - We are available 24/7 online and we are always ready to answer your questions, even if they are complex or technical, Feel free to contact us even if you are not familiar with the technical aspects and terms. ✅ Technology Stack: Front-End: - JavaScript, TypeScript, - Redux, Mobx, RxJS, - React.js, Angular.js, Vue.js, Next.js; Back-End: - NodeJS, TypeScript, Rust, - Express.js, Nest.js, AdonisJS, Python, Solidity, C, C++, Go, SQL and NoSQL, MongoDB, GraphQL, Web3.js, Ethers.js, Redis, Docker; Mobile: - Java, Kotlin, - Objective-C, Swift, React Native, - Flutter; Blockchain: Layer 0 - Cosmos, Polkadot, Kusama; Layer 1 - Ethereum, BNB chain, Solana, Near, Aurora, Cardano, Avalanche, Cronos, Internet Computer, Ton, Aptos, Sui, Astar; Layer 2 - Polygon, Arbitrum, Optimism, Base, Starknet, ZKSync, ZkRollups; Thank you for reading to the end! Do you want your business to be more efficient with innovative blockchain-based solutions? Please feel free to contact me. I always respond quickly on Upwork. Briefly describe your problem or idea in your own words and I will suggest the best solution. We can also accept a video call to discuss your project.
    Featured Skill Blockchain
    Cryptocurrency
    Scala
    Cardano
    Polkadot
    Smart Contract Development
    Web3
    Product Development
    International Development
    Solidity
    Rust
    JavaScript
    Ethereum
    Blockchain Architecture
    Blockchain Development
  • $40 hourly
    • 5.0/5
    • (26 jobs)
    Hello and welcome! I’m a Top Rated full-stack developer with over 12 years of experience in WordPress, Laravel, Web3, API integrations, and mobile development using Cordova and Flutter. I focus on delivering tailored solutions that help businesses grow and scale efficiently. My expertise includes: WordPress and WooCommerce – custom themes, plugins, and API integrations Laravel – scalable backend development and RESTful APIs Mobile app development – cross-platform solutions with Cordova and Flutter Web3 development – blockchain integrations and smart contracts Custom solutions – solving complex problems with innovative approaches I take an individual approach to every project, ensuring that each client's unique challenges are addressed with the best possible solutions. Instead of listing achievements, I let my work speak for itself by helping clients achieve their business goals efficiently and professionally. Let’s build something great together. Best regards, Volodymyr
    Featured Skill Blockchain
    Craft CMS
    Webflow
    WordPress e-Commerce
    API
    Page Speed Optimization
    Flutter
    Web3
    Apache Cordova
    Browser Extension
    Laravel
    PHP
    WordPress Plugin
    JavaScript
    WordPress
  • $50 hourly
    • 5.0/5
    • (3 jobs)
    ⚡ Fast turnarounds | ⭐ High quality of work | ☎ On-Demand Service | 🕛 Full Time Availability ✅ Verifiable projects | ⭐️ 10+ Successfully Completed Projects | 💎 Expertise in SaaS, CRM, CMS, ERP, AI, Blockchain, E-commerce, Booking and Reservation System, Analytics and Reporting Tools, Healthcare Management Systems, Financial Management, Real-Time Communication Tools development ➤ Key Technical Proficiencies: 👉 Frontend Development: ☑ Frameworks & Libraries: React.js (including Redux, Redux-Thunk/Saga, Formik), Next.js, Angular, Vue.js, Nuxt.js ☑ Languages & Technologies: ES6/7/8, TypeScript, D3.js, HTML5, CSS3 (LESS, SASS), TailwindCSS, Styled-components, Twig, Canvas ☑ UI/UX Tools: Figma, Zeplin, Adobe XD, Sketch, InVision ☑ UI Frameworks: Bootstrap, Material UI, Kendo UI, Ant Design, Chakra UI 👉 Backend Development: ☑ Languages & Frameworks: Node.js (Express.js, Nest.js), Python (Django, Flask), PHP (Drupal, Laravel, Codeigniter), C# (.NET Framework, ASP.NET, ASP.NET MVC), GraphQL/Apollo ☑ Tools: Webpack, Vite, Gulp, TravisCI 👉 Blockchain Development ☑ Solidity, Rust, Go, Docker ☑ Defi, DAO, Any DApp on EVM ☑ Mint & Staking, NFT and Airdrop on EVM, Cosmos, XRPL, Solana chains ☑ Web3.js, Wallet Connect Integration, Bug fix, Smart contract Audit, 100% security 👉 Database & ORM: ☑ Databases: MySQL, PostgreSQL, MongoDB, Firebase Cloud Firestore, AWS DynamoDB ☑ ORM Libraries: TypeORM, Prisma, Sequelize, Mongoose, Hibernate, Entity Framework 👉 Cloud & DevOps: ☑ AWS Services: S3, EC2, Amplify, Lambda, API Gateway, SQS, SNS, Textract, Quicksight, VPC, RDS, Cloudfront, and more ☑ Other Platforms: Digital Ocean, Azure, Google Cloud Platform, Heroku 👉 Testing & Payment Integration: ☑ Testing Tools: Jest, Mocha, Cypress, pytest, unittest ☑ Payment Services: Stripe, PayPal, Apple Pay, Google Pay, Square, and more 👉 Big Data: ✅ Big Data Tools Integration (e.g., Apache Hadoop, Apache Spark) ✅ ETL Processes Implementation (Extract, Transform, Load) ✅ Data Retention Policies ✅ Distributed Computing ✅ Hadoop Cluster Management ✅ Stream Processing Systems (e.g., Apache Kafka) ✅ NoSQL Databases (e.g., MongoDB, DynamoDB) ✅ ML Toolkits (e.g., TensorFlow) ✅ Lambda Architecture 👉 Data Science: I help build business owners and their teams robust predictive analytics systems to better align their budgeted with the actual figures at year end, thereby reducing the delta and increasing the likelihood of shareholder alignment, improving the company's going-concern assumption for the stakeholders, and thereby improving the share value in the long run. ✅ Selecting features, building and optimising classifiers using ML techniques. ✅ Data mining ✅ Data collection ✅Third-Party Data Integration (e.g., APIs, Web Scraping) ✅ Data Integrity Verification ✅ Anomaly Detection Systems ✅ Query Language Proficiency (e.g., SQL) ✅ Scripting Skills (e.g., Python) ✅ Statistical Analysis ✅ Effective Communication Skills ➤ Benefits of working with me: • I will take all of the technical headaches off your hands, giving you more time to serve your clients, do what you love, and enjoy time with your family. • Your project's success will be my number one priority, and I will do whatever it takes to deliver an effective solution to you. • Access to me by email and phone 12 hours per day. • Less than 1-hour response times on technical questions/issues during business hours. Driven by a passion for innovation and backed by a strong foundation in cutting-edge technologies, I'm committed to propelling your business towards unparalleled success. Let's harness the power of tech to revolutionize your operations! I look forward to working with you and making your business run more smoothly than ever. 🚀
    Featured Skill Blockchain
    .NET Core
    Smart Contract
    Docker
    Angular
    Vue.js
    PostgreSQL
    MongoDB
    SQL
    C#
    Django
    Python
    Node.js
    Next.js
    React
  • $35 hourly
    • 5.0/5
    • (5 jobs)
    Hello, My name is Volodymyr, a seasoned Full Stack Developer with over 10 years of experience delivering high-quality software solutions across various industries. My expertise spans multiple technologies, including Java Spring, Python Django, .NET, Laravel, Vue.js, React, Node.js, and TypeScript and so on. This diverse skill set allows me to build robust, scalable, and efficient applications, tailored to meet your unique business needs. I value clear communication and collaboration. I work closely with clients to understand their requirements, provide regular updates, and deliver solutions that exceed expectations. If you are looking for a developer to build a project from scratch or enhance an existing system, I am here to bring your vision to life.
    Featured Skill Blockchain
    Web3
    Vue.js
    Laravel
    Next.js
    Angular
    ASP.NET
    TypeScript
    React
    Django
    Python
    Spring Framework
    Java
  • $40 hourly
    • 5.0/5
    • (6 jobs)
    As a self-employed blockchain and crypto trading bot developer, I leverage my strong Python, JavaScript, Solidity, Rust, Go programming skills and quantitative analysis abilities to design and develop a trading bot that optimizes trading performance and risk management in multiple CEX (Bybit, Biinance, Coinbase, Kukoin, etc) and DEX (Ethereum, BSC, Solana, Ton, Tron) exchanges. I have successfully managed option trading activities for over 8 years, using algorithmic strategies and market data to execute profitable trades. I have also designed and implemented many decentralized applications (DApps) and smart contracts that enhance transparency and security for various industries. I am driven by the potential of blockchain to revolutionize how we interact with digital assets and believe in its power to create trustless and efficient systems. Core Expertise: Blockchain: - Smart Contracts (ERC20/721/1155/4337), dApps, NFT marketplace, DAO, Bridge, SPL tokens, Memecoin, Stablecoin, Crypto exchange/wallets. Trading Bots && Strategies: - Trading Bots: Arbitrage, Market-Making, Trend-Following, Grid Trading, Scalping, Copy Trading, Volume, Frontrunning, Liquidity Sniper. - Strategies: Day Trading, Position Trading, Forex Trading, Arbitrage, Scalping, Algo Trading, Grid Trading. Programming Languages & Frameworks: - Languages: Python, JavaScript, Solidity, Rust, Go. - Frameworks: Django/Flask, Node.js, Golang DevOps & Cloud: - Containerization: Docker, Kubernetes. - Cloud Platforms: AWS, Azure, GCP. - CI/CD: Jenkins, GitLab CI, GitHub Actions. My goal is to pursue an entry-level position in software development that allows me to apply my skills and knowledge to real-world problems and contribute to the success of the company.
    Featured Skill Blockchain
    Blockchain, NFT & Cryptocurrency
    Web3
    Solana
    Ethereum
    Pine Script
    Forex Trading
    Artificial Intelligence
    Bot Development
    Trading Strategy
    Solidity
    Golang
    Rust
    JavaScript
    Python
  • $40 hourly
    • 5.0/5
    • (13 jobs)
    I’m Vlad, a skilled Solana Developer, Blockchain Developer, and Web3 Developer with over 18 years of experience building scalable, high-performance applications across industries. My expertise in Blockchain Development, smart contract engineering, and full-stack software architecture enables me to deliver end-to-end solutions that are both technically sound and business-focused. Over the years, I’ve worked with startups and enterprises alike—bringing value through well-architected blockchain solutions on platforms like Solana, Ethereum, and Bitcoin. Lately, my focus has been on the Solana blockchain, where I’ve specialized in high-throughput, low-latency systems using Rust and Solana Program Library (SPL) standards. As a Solana developer, I craft performant smart contracts (on-chain programs) in Rust, ensuring optimized compute and transaction cost efficiency. Whether it’s developing SPL tokens, integrating Solana RPC nodes, or building DApps with web3.js, I’m fully immersed in the Solana ecosystem and its growing stack of developer tools. 🔹 Blockchain & Web3 Expertise: • Solana Development: Design and deployment of scalable decentralized applications (dApps), smart contracts in Rust, tokenomics, staking protocols, and real-time Solana-based DeFi systems. • Ethereum Blockchain: Solidity-based smart contract development for ERC-20, ERC-721, and ERC-1155 standards, with experience in DeFi, NFT platforms, and DAO governance structures. • Full Stack Web3 Applications: Integration of blockchain logic with intuitive user interfaces using React, JavaScript, HTML, and web3.js. • Blockchain Architecture: Deep knowledge of both EVM-compatible and Solana architectures, enabling me to advise on scalability, security, and performance from a protocol-aware perspective. 🔹 Languages & Tools: I’m fluent in Rust, JavaScript, Python, and Node.js—leveraging this diverse toolset to develop everything from smart contracts to backend APIs and frontend dashboards. I build with performance and security in mind, using React and modern frameworks for frontend, and Node.js or Python for backend services. 🔹 Smart Contract Development: I’ve authored and audited dozens of smart contracts on Solana and Ethereum, covering NFTs, token standards, DeFi protocols, and multi-sig wallets. I’m experienced in deploying, upgrading, and managing smart contracts with security best practices. 🔹 NFT & DeFi Solutions: From NFT minting engines and metadata handling to marketplace integrations and royalty logic, I’ve delivered production-ready NFT platforms on both Solana and Ethereum. My knowledge of decentralized finance includes DEXs, yield farming, staking, liquidity pools, and vault strategies—optimized for the performance capabilities of the Solana blockchain. 🔹 Cryptocurrency & Wallet Integrations: I’ve built robust cryptocurrency platforms with multi-wallet support, secure transaction handling, and integration with Solana wallets like Phantom and Solflare, as well as MetaMask for Ethereum. I also develop backend services to track and broadcast blockchain transactions in real time. 🔹 Backend Infrastructure: Experienced in deploying and maintaining blockchain nodes, managing smart contract workflows, and integrating external services. I use containerized environments (Docker), and understand the nuances of maintaining blockchain infrastructure across testnets and mainnets. 🔹 Enterprise & Public Blockchain Development: Beyond public blockchain systems like Solana and Ethereum, I’ve also delivered enterprise blockchain solutions using frameworks like Hyperledger Fabric. I understand permissioned blockchain use cases and how to bridge them with public chain features via oracles and custom APIs. 🔹 Full-stack expertise: • Java, Spring Framework, Spring Boot, Hibernate, Gradle • Javascript - Node.JS, Express.js, React, Angular frameworks • PHP - Symfony, Doctrine, Composer, PSR • Docker, Docker Compose, Kubernetes • Messaging experience: Kafka, RabbitMQ, ActiveMQ, SQS, SNS • Databases: MySQL, PostgreSQL, MSSQL, MongoDB, Redis, DynamoDB, Couchbase, and multiple others. • AWS: EC2, Lambda, Step Functions, ECS, ECR, EKS, Fargate, S3, RDS, SQS, SNS, CloudWatch and many-many more. • KVM/ESXi-based infra experience. • CI/CD: Gitlab CICD, GitHub actions, blue-green and canary deployments. • Auto-testing: Unit, Integration, Component, CDC, E2E, performance auto-tests, including parametrized tests and test-coverage reports. • RFP response, RFQ response, SRS, SDD implementations since 2017. ⸻ Why choose me as your Solana or Blockchain Developer? With a hybrid background in traditional software engineering and modern blockchain architecture, I bring a unique balance of security, performance, and user experience to your project. Whether you’re building a high-frequency DeFi app on Solana, an NFT marketplace, or a cryptocurrency trading tool, I can help you define the architecture, implement the solution, and guide it to production.
    Featured Skill Blockchain
    HTML
    React
    Cryptocurrency
    Node.js
    Blockchain Architecture
    Blockchain Development
    Solidity
    Rust
    Smart Contract
    web3.js
    Ethereum
    Python
    Solana
    JavaScript
  • $35 hourly
    • 4.9/5
    • (7 jobs)
    👋𝐇𝐞𝐥𝐥𝐨 𝐞𝐯𝐞𝐫𝐲𝐨𝐧𝐞 𝐈 𝐚𝐦 𝐡𝐞𝐫𝐞 to challenge advanced technical problems in crypto trading and Telegram bot/mini app projects. Doing several Solana/Ethereum/Base trading TG bot development, I got precise sense of how to trade crypto currencies If you really want to build your own successful trading bot, I will share my previous projects and contribute to your great idea 𝐅𝐞𝐞𝐥 𝐟𝐫𝐞𝐞 to reach out me for consulting about your new idea, it is always an honor Thanks
    Featured Skill Blockchain
    Automation
    Python
    Web Scraping
    Apache Cassandra
    Redis
    Next.js
    Web Development
    Cryptocurrency Trading
    Smart Contract
    API Integration
    Bot Development
    Telegram API
    Solana
  • $35 hourly
    • 5.0/5
    • (4 jobs)
    Hi there! 👋 I'm a results-driven Automation Specialist with 5+ years of experience in Data Science, AI/ML, and Blockchain development. With a Bachelor's in Computer Science and a strong passion for innovation, I help businesses streamline operations, uncover insights, and build cutting-edge solutions using modern technologies. 😊 What I Can Do for You 1. Automation & Optimization -Automate repetitive tasks and data pipelines using Python, R, and Golang -Develop workflow automation tools to enhance productivity -Integrate AI-driven decision systems into business operations 2. Data Science & Analytics - Data Processing & Cleaning: Transform raw data into actionable insights using Python (Pandas, NumPy). - Visualization & Reporting: Create visually stunning dashboards using Power BI, Tableau, Matplotlib, and Seaborn. - Predictive Analytics: Build machine learning models to forecast trends and drive data-backed decision-making. 3. AI & Machine Learning - Custom ML Solutions: Develop predictive models, recommendation engines, and NLP-based tools. - Automation: Design AI systems for workflow optimization and task automation. - Integration: Seamlessly embed AI capabilities into mobile and web applications. 4. Blockchain Pro - Deep knowledge of smart contracts, DeFi, and Web3 development - Build and optimize decentralized applications, secured blockchain networks. - With a strong foundation in cryptography and decentralized finance, I create secure, scalable, and impactful blockchain solutions. 😊 Expertise -Programming Languages: Python, R, Golang, SQL -Frameworks: TensorFlow, Keras, PyTorch, Aparche Spark, -Libraries: Matplotlib, NumPy, Pandas, Scikit-learn, OpenCV, -Databases: PostgreSQL, MongoDB, MySQL, Firebase -Development Tools: Jupyter Lab, GitHub, R Studio, Power BI, Looker Studio, VS Code, PyCharm Let’s turn your ideas into reality! Please reach out, and I’m ready to get started immediately!
    Featured Skill Blockchain
    Web3
    Solidity
    Selenium
    OpenCV
    Keras
    TensorFlow
    Python
    Natural Language Processing
    Data Scraping
    Data Visualization
    Data Science
    Artificial Intelligence
    Machine Learning
    Automation
  • $35 hourly
    • 5.0/5
    • (2 jobs)
    Highly skilled Full Stack and Blockchain Developer with over 5 years of experience in designing, developing, and deploying scalable web applications and decentralized applications (dApps). Proficient in modern web technologies and blockchain platforms, committed to writing clean, efficient code and delivering quality software solutions. Passionate about leveraging blockchain technology for innovative solutions and enhancing user experiences. TECHNICAL SKILLS *Programming Languages: JavaScript, TypeScript, Python, Solidity, Go, Rust *Frameworks & Libraries: Node.js, React, Angular, Vue.js, Express.js, Truffle, Hardhat *Blockchain Technologies: Ethereum, Hyperledger, Binance Smart Chain, IPFS, Web3.js *Databases: MongoDB, PostgreSQL, MySQL, Firebase *DevOps Tools: Docker, Git, CI/CD, Jenkins, Terraform *Cloud Platforms: AWS, Azure, Google Cloud Platform *Other Technologies: RESTful APIs, GraphQL, Agile Methodologies, Git, Agile/Scrum Keywords: Full Stack Developer Blockchain Developer Web Applications Decentralized Applications (dApps) JavaScript TypeScript Python Solidity Go Rust Node.js React Angular Vue.js Express.js Truffle Hardhat Ethereum Hyperledger Binance Smart Chain IPFS Web3.js MongoDB PostgreSQL MySQL Firebase RESTful APIs GraphQL Agile Methodologies Git Docker CI/CD Jenkins Terraform AWS Azure Google Cloud Platform Smart Contracts Code Reviews UI/UX Responsive Design ISO 27001 Application Security Agile/Scrum Transaction Efficiency Cross-functional Collaboration Software Solutions Audit Trails DevOps Open Source Contribution
    Featured Skill Blockchain
    AWS Application
    Laravel
    Angular
    MongoDB
    Next.js
    Vue.js
    React
    ExpressJS
    web3.js
    DApp Development
    Smart Contract
    Solana
    Solidify
    Cryptocurrency
  • $50 hourly
    • 5.0/5
    • (28 jobs)
    Hi! My name is Olha, and I am an experienced AI/ML and Blockchain Specialist with 106 delivered longterm projects. I manage R&D delivery at Apriorit, a leading cyber security and software engineering company specializing in AI/ML, SaaS development, and Blockchain solutions. Apriorit has been operating in the market since 2002, delivering cutting-edge technologies that solve complex business challenges. My core expertise lies in creating AI-driven applications, including chatbots, Large Language Models (LLM), Natural Language Processing (NLP) solutions, and machine learning (ML) algorithms. I am a certified Scrum Master. The team I oversee successfully delivered projects involving deep learning, predictive analytics, and automation for industries such as healthcare, fintech, and cybersecurity. Whether you need help with data preprocessing, feature engineering, or model deployment, my team and I can ensure robust, innovative solutions that drive results. We excel at matching the right AI models to each client’s business needs, ensuring optimal performance and results. Additionally, we provide AI consulting to help businesses define their AI strategies and streamline development processes, enabling better decision-making and innovation. At Apriorit, I also manage a team blockchain developers who have in-depth knowledge of blockchain development, smart contracts, decentralized systems, and tokenization. We specialize in creating secure, scalable blockchain solutions across various platforms (Ethereum, Hyperledger, etc.), following the latest industry standards like ERC-20 and ERC-721. Our team has delivered projects such as decentralized finance (DeFi) platforms, supply chain transparency solutions, and tokenized ecosystems, maintaining a high level of security and performance. Our team at Apriorit has extensive expertise in developing SaaS products from scratch, starting from architecture design to full development, deployment, and support. We specialize in creating scalable, high-performance SaaS platforms tailored to specific industries and business needs, integrating advanced features like multi-tenant architectures, API integrations, and AI-powered functionalities. Whether you're building a SaaS platform for fintech, healthcare, or other sectors, we can design solutions that integrate seamlessly with APIs and leverage AI to enhance user experience and decision-making processes. We ensure long-term support and maintenance, helping you grow your SaaS product and adapt to market demands. You can find a list of technologies Apriorit has experience in below 👇 🔶 Front-end: ✅React.js / Redux / Redux-Saga / Styled-Components / React-Native; ✅AngularJS / Angular2/4/5/6/7/13 / NgRx / RxJS / TypeScript / Ionic; ✅Electron; ✅JavaScript / jQuery / EmberJS / Vue / MomentJS / Material Design; ✅HTML5 / CSS3 / SASS/SCSS / CSS Animations / Flux; ✅Styled Components / Material UI / LESS / Bootstrap / Foundation Framework; 🔶 Back-end: ✅.NET / .NET.Core / ASP.NET, ASP.NET MVC / C# / Web API / Rest API / GraphQL / Microservices ✅JavaScript / NodeJS / Express / Typescript / ES6; ✅Golang / Rest API; ✅Python / Django; ✅PHP / Laravel / Yii / Yii2 / Zend Framework / Smarty / Blade; 🔶 AI/ML: ✅OpenCV; ✅Tesseract; ✅TensorFlow / Keras / PyTorch; ✅NumPy / Pandas; ✅Scikit-learn; ✅Matplotlib / Seaborn; ✅NVIDIA TensoRT ✅SciPy ✅OpenAI / GPR 3.4.custom 🔶 Mobile applications: ✅React-Native / React + WebView; ✅Ionic; 🔶 Serverless: ✅AWS Lambda; ✅AWS Cognito Users Pool; ✅AWS API Gateway; ✅Serverless Framework; ✅DynamoDB; 🔶 Database: ✅SQL Server / MSSQL / MySQL / SQLite / T-SQL / Oracle / PostgreSQL; ✅NoSQL / MongoDB / DynamoDB; 🔶 Blockchain: ✅Smart Contracts / Cryptocurrency / DAPP /Tokenization / Exchanges / Wallets / KYC integration; ✅Ethereum / IPFS / BTC / TRON / Stellar / Litecoin / NEO / Hyperledger; ✅Solidity / Web3 / ERC20 Standard / Truffle; 🔶 API and Services: ✅PaymentSystems API / Stripe / BluePay / Mercado Pago / PagSeguro / Paymentwall; ✅KYC services / Onfido / VerifyInvestor; ✅Docusign / Pandadoc; ✅Google API / Facebook API / Google Push Notifications; ✅Apple Push Notification Service; ✅Adobe Premiere / Adobe After Effects scripting; 🔶 Desktop applications: ✅Electron; 🔶 Other: ✅AWS / Azure / Digital Ocean ✅Vagrant / Docker 🔶 UI/UX: ✅Design Tools: Adobe Photoshop, Adobe Illustrator, Adobe After Effects, Sketch, Maxon Cinema 4D, Principle, Flinto, Invision / Marvel, Balsamiq, Zeplin, InDesign, Affinity Designer; ✅Design Skills: UI/UX Design, Sketching, Motion, 3D Art, Wireframes, Interaction Design, Typography, Graphic Design, Rapid Prototyping, Usability.
    Featured Skill Blockchain
    .NET Core
    Truffle
    Solidity
    Electron
    AWS Lambda
    SaaS
    Golang
    React
    Python
    Node.js
    AngularJS
  • $95 hourly
    • 4.9/5
    • (51 jobs)
    Do you want to SHOOT someone? Than it is NOT to me. On all other tasks please count on me. And I also make websites and do programming ;-) ------------------------------------------- Some technical details: • My frontend stack: Vue (Nuxt, Pinia), React (Redux, Next, ReactNative), Angular, Ember. • My backend stack: Python, NodeJs (NestJs, Express), PHP (Laravel, YII) • I optimize for: Windows, MacOS, iOS, Android • DBs and Data management systems: MySQL, PostgreSQL, MongoDB , Redis, RabbitMQ • I use in my work process: Agile, Scrum, Git Flow, CI/CD, TDD, SOLID principles and unit testing. ------------------------------- I have finished more then 50 project and startups, and I will be glad to make and lead to the finish yours as well. Please contact me if you need it :) Regards, Vlad.
    Featured Skill Blockchain
    Apache Cordova
    Team Management
    NFT
    Node.js
    Electron
    React
    Leadership Development
    Machine Learning
    Ember.js
    Nuxt.js
    JavaScript
    Vue.js
    Python
    Yii
    Laravel
    PHP
  • $35 hourly
    • 4.8/5
    • (98 jobs)
    👋 Hi! I'm Michael — a Senior React & React Native developer with 7+ years of experience delivering high-quality mobile and web applications. Over the past several years, I’ve completed 50+ successful projects on Upwork and built long-term partnerships with startups and teams worldwide. My focus is on creating reliable, scalable solutions that go beyond just working — they make a real impact. 💡 Here’s what I bring to the table: – Deep expertise in React, React Native, TypeScript, Expo – Solid knowledge of Node.js, Vue.js, Django for full-stack development – Hands-on experience with Firebase, GraphQL, Stripe, Google Maps, CI/CD, and more – Strong focus on clean code, clear communication, and on-time delivery 🛠️ I work across the stack — whether it's crafting seamless mobile apps, building interactive UIs, or integrating APIs for high-performance systems. 🚀 Recent projects include: – A mobile fitness app with real-time notifications and OTA updates – A cross-platform marketplace with payments and messaging – A SaaS analytics dashboard with custom visualizations and API integrations 💬 What clients say: “Michael is extremely reliable, communicates well, and delivers great code.” “Very talented, goes above and beyond, a pleasure to work with.” I’m not just here to write code — I’m here to help you build products that matter. Let’s connect and bring your idea to life — from concept to launch and beyond.
    Featured Skill Blockchain
    Swagger
    Browser Extension
    Gatsby.js
    Next.js
    Redux Saga
    Expo.io
    Vue.js
    Apple Xcode
    GraphQL
    Firebase
    React
    React Native
    JavaScript
    Flutter
  • $40 hourly
    • 5.0/5
    • (30 jobs)
    I’m your perfect match! I’ve been working as a project manager and researcher for 5 years. I also performed different research for London-based cybersecurity company Onyx It (onyx-it.co.uk), California-based Tech Startup TSP and Stanford University. WHY you have to CHOOSE ME because I have good research and analytics skills, I’m responsible, and I have a good research strategy that works well. I've just finished a project for a California-based start-up company, where I successfully managed marketing research and funding research. The client just had an idea and mind to develop an application and didn’t know the problems that the potential target audience had. We did 2 rounds of user interviews, and with the help of the UX designer and me we created a clickable prototype and Figma. We got 94% of satisfaction during user testing. We plan to have a beta version in September. As a part of the project, I researched an investor and helped him apply for funding. In addition, I have:
 - master's degree in information technology - knowledge of the best practices in a research field - expert level in tools that help analyze competitors websites in detail ( semrush.com, Serpstat, Similarweb) - high level of feedback on Upwork
    Featured Skill Blockchain
    Administrative Support
    Data Entry
    Project Management
    Bitcoin
    Project Plans
    Branding
    Cryptocurrency
    Market Analysis
  • $50 hourly
    • 5.0/5
    • (17 jobs)
    You are here because you need a web application - not just a mediocre website, but a complex mechanism tailored to your specific business needs that's just above the competence level of most freelancers out there? If yes, search no further. That's what I've been doing for the last 15 years. Contact me if your needs include: - Custom integrations with third-party APIs; - A mobile app that perfectly reflects and automates your business process and complements your web app; - Collecting and processing data from other websites; - High-load web applications designed to handle thousands of requests per second; - Applications with industry-specific business logic in financial, logistics, travel, healthcare, entertainment or media fields; - Mobile optimized, performance-optimized and SEO optimized websites; - Advanced eCommerce applications; and you are looking for someone who: - understands the UI/UX practices that websites use to attract, convert and retain customers; - speaks fluent, easily understandable English; - is ready to adjust to your business hours; - is attentive to detail; - always keeps you updated about the progress; - is easy-going and agreeable. I'm looking forward to learning about your goals and helping you achieve them. Sincerely, Serhiy
    Featured Skill Blockchain
    Artificial Intelligence
    iOS
    Swift
    User Experience Design
    Kotlin
    Node.js
    JavaScript
    Shopify
    Laravel
    HTML
    WordPress
    React
    PHP
    Vue.js
  • $35 hourly
    • 4.6/5
    • (20 jobs)
    🚨 𝙔𝙤𝙪𝙧 𝙋𝙧𝙤𝙟𝙚𝙘𝙩 𝙒𝙞𝙡𝙡 𝘽𝙚 𝙈𝙮 𝙋𝙧𝙞𝙙𝙚 – 𝘿𝙚𝙡𝙞𝙫𝙚𝙧𝙚𝙙 𝙊𝙣 𝙏𝙞𝙢𝙚 𝙖𝙣𝙙 𝙊𝙣 𝘽𝙪𝙙𝙜𝙚𝙩! 🚨 🎮 Creating Top Games & Mobile Apps | AR/VR, ML, and AI Development Pro 🚀 👋 Hi! I’m a developer who’s passionate about building awesome games and mobile apps that push the limits of technology. I specialize in AR/VR, machine learning, and AI, and I’m here to turn your ideas into reality with high-quality, creative solutions. 🔹 What I Do: 🎮 Game Development: Game Engines: Skilled in Unity, Unreal Engine, and Godot, I create games that are fun, engaging, and work great across different platforms. Game Design: I design game mechanics, stories, and gameplay that keep players hooked. 3D Modeling & Animation: Using tools like Blender and Maya, I build realistic characters and worlds that make games stand out. AI in Games: I use AI to create smart, responsive NPCs and dynamic game content. Multiplayer Games: I develop multiplayer features like real-time networking and matchmaking for smooth online play. VR/AR Development: I make immersive VR and AR games that take players to new worlds. Game Testing & QA: I ensure games are polished and bug-free through thorough testing and quality checks. 📱 Mobile App Development: Cross-Platform Apps: I create apps for iOS and Android using Flutter and React Native. Mobile UX/UI Design: I design easy-to-use interfaces that make apps a joy to use. App Optimization: I ensure apps run smoothly, are secure, and don’t drain battery life. AI-Powered Apps: I add smart features to apps using machine learning, like personalized recommendations and predictive analytics. Mobile AR/VR: I develop AR/VR apps for mobile devices that offer rich, immersive experiences. 🧠 Machine Learning & AI Development: ML Algorithms: I design machine learning algorithms for tasks like predicting trends and understanding text. Deep Learning: I use deep learning techniques to handle complex tasks like image recognition and language translation. AI in Games: I add AI features to games, like smart NPCs and dynamic environments. Data Analysis: I analyze data and create visual insights to help businesses make informed decisions. AI for AR/VR: I enhance AR/VR experiences with real-time object recognition and interactive features. 🔹 Tech Skills: Languages: C++, C#, Python, Swift, Kotlin, JavaScript, Lua Game Engines: Unity, Unreal Engine, Godot, CryEngine, Frostbite 3D Tools: Blender, Maya, 3ds Max, ZBrush AI/ML Tools: TensorFlow, PyTorch, Keras, Scikit-learn, OpenCV Mobile Development: Flutter, React Native, Swift, Kotlin AR/VR: Oculus SDK, ARCore, ARKit, Vuforia, HoloLens Version Control: Git, SVN, Perforce Project Management: Jira, Trello, Asana Sound Tools: FMOD, Wwise, Audacity 🔹 Why Work with Me? 🌟 Quality First: I focus on delivering top-notch products that exceed expectations. Every detail matters to me. 💡 Innovative: I stay up-to-date with the latest tech trends to bring fresh ideas to your projects. 🕰️ On Time: I respect deadlines and always deliver on schedule without cutting corners. 🤝 Team Player: I work closely with clients to make sure their vision comes to life. Your success is my goal. 🔹 Let’s Build Something Great! If you’re looking to develop a game, app, or AR/VR project, let’s talk! I’m here to help bring your ideas to life with my skills in game development, mobile apps, and advanced technologies like AI, ML, and AR/VR. 📩 Message Me Today: Ready to start? Reach out, and let’s discuss how I can help with your project. 🎮 Portfolio & References Available on Request 🎮 keywords: ios swift developer developers app marketing kotlin swift ios ui designer ifs erp kotlin developer android ktor multiplatform hybrid app publisher reverse engineer swift swiftui game unity unreal designer designers analytics 🔄 Updated on February 28, 2025 🔄
    Featured Skill Blockchain
    Mobile Game Development
    Game Development
    React Native
    Mobile App
    Artificial Intelligence
    Mobile App Development
    Android
    iOS
    Unreal Engine
    C++
    Data Science
    Machine Learning
    Computer Vision
    Python
  • $29 hourly
    • 4.9/5
    • (71 jobs)
    Tired of WordPress sites that look nice but don’t perform? Let’s flip the script. I build WordPress websites that aren’t just pretty — they work hard for your business. Whether you want to generate leads, boost sales, or build credibility, I’m here to help you do more with your online presence. ✅ What You Get When We Work Together: A WordPress site that sells — Clear, compelling, conversion-focused. Pixel-perfect design execution — With Elementor, ACF, or custom themes. Clean, secure, and scalable code — Built with modern PHP, JS, and best practices. Ongoing support & optimization — I don’t disappear after delivery. 🛠️ My WordPress Toolkit Includes: Languages & Frameworks: HTML, CSS/SCSS, JavaScript, JQuery, PHP Builders: Elementor, Gutenberg, Divi E-commerce: WooCommerce setup, customization & optimization Custom Solutions: ACF, plugin development, theme development Speed & Security: Page speed optimization, malware removal, SEO basics Maintenance: Backups, migrations, updates, and long-term care 🔄 Services I Regularly Provide: Full Website Development (from scratch or redesign) Landing Pages that Convert WooCommerce Stores That Sell Plugin/Theme Customization & Development Speed & Security Optimization Bug Fixes, Debugging & Technical Support Website Migration, Hosting Setup, Backups Ongoing Maintenance Plans 📈 Who I Work Best With: Entrepreneurs & Small Businesses needing a site that drives results Agencies looking to outsource expert WordPress development E-commerce brands ready to scale online Coaches & consultants building authority and capturing leads 🎯 Let’s stop building “just another site” and start creating something strategic and purposeful. 💬 Want to discuss your idea? 🟢 Click “Invite to Job” to start the conversation. Keywords: WordPress, WooCommerce, Elementor, ACF, WPML, Yoast SEO, WP Rocket, RankMath, Contact Form 7, Gravity Forms, Ninja Forms, CPT UI, Advanced Custom Fields, Slider Revolution, WPBakery, Divi, Gutenberg, Loco Translate, Polylang, SEOPress, Autoptimize, Smush, ShortPixel, MemberPress, LearnDash, LifterLMS, Duplicator, All-in-One WP Migration, UpdraftPlus, iThemes Security, Wordfence, Sucuri, W3 Total Cache, Perfmatters, Google Analytics, Facebook Pixel, GTM, Hotjar, Mailchimp for WP, Sendinblue, Klaviyo, ActiveCampaign, Cloudflare, Git, GitHub, Bitbucket, HTML5, CSS3, SCSS, JavaScript, JQuery, PHP, MySQL, REST API, Figma to WordPress, Adobe XD to WP, PSD to WP, responsive design, Core Web Vitals optimization, cross-browser compatibility, cPanel, DNS, SSL setup, website migration, custom theme development, plugin development, WordPress speed optimization, WordPress SEO, WordPress security, WordPress maintenance, WordPress troubleshooting, eCommerce, mobile optimization. 24.04.2025
    Featured Skill Blockchain
    HTML5
    web3.js
    Web3
    Web Application Development
    Redux
    Full-Stack Development
    API Development
    Web Development
    PostgreSQL
    TypeScript
    API
    React
    Node.js
    JavaScript
  • $35 hourly
    • 4.9/5
    • (30 jobs)
    Hello! I’m a UX/UI, Web & Graphic Designer with 5 years of experience, specializing in mobile games, blockchain, cryptocurrency, and Web3 projects. My goal is to design user-friendly, efficient, and visually striking interfaces that help your project stand out in the market. What I Offer: 🚀 Game Design – Crafting engaging and intuitive game interfaces for a seamless player experience. 🚀 Blockchain Platform Design – Creating dApps, DEX platforms, crypto wallets, exchanges, Play-to-Earn, and Move-to-Earn interfaces. 🚀 NFT Marketplace UI/UX – Designing user-friendly NFT platforms to enhance trading and interaction. 🚀 Landing Pages for Crypto Startups – Building high-converting and visually appealing pages to attract investors and users. 🚀 Crypto App Design – Developing intuitive and efficient UI/UX for cryptocurrency applications. 🚀 Websites for Blockchain Companies – Creating modern, professional, and responsive sites for Web3 businesses. 🚀 UI/UX Consulting & Audits – Analyzing and optimizing user interaction for better engagement and conversion. 🚀 Prototyping & Wireframing – Developing clear and functional concepts for Web3 projects. 🚀 Mobile Design for Blockchain Apps – Ensuring seamless mobile experiences for crypto platforms. I design interfaces that are not only modern and stylish but also optimized for a flawless user experience. If you’re in the blockchain or crypto industry, let’s take your product to the next level! ✨
    Featured Skill Blockchain
    Web3
    Character Design
    Prototyping
    2D Game Art
    Figma
    NFT
    Game Art
    Landing Page
    Mobile UI Design
    Graphic Design
    Web Design
    UX & UI
    Game Design
  • $15 hourly
    • 5.0/5
    • (10 jobs)
    🇺🇦 Hi, I am Yurii Bezsmolnyi, Full Stack Developer from Lviv, Ukraine 💪🏼 3.5+ years of experience in React and Node.js 💫 Worked on 8+ challenging projects across various domains 👀 Focused on creating and delivering products from ideas to successful outcomes 🔗 Experienced in building modern web solutions and blockchain technologies ✨ Also, develop personal projects to explore new tools and improve skills CV - blackblud.notion.site/Yurii-Bezsmolnyi-Full-Stack-Web-Developer-ca9571b31ec74175aebf7a2f855fe276
    Featured Skill Blockchain
    Cryptocurrency
    Crypto Wallet
    Firebase
    SCSS
    HTML
    Git
    Node.js
    React
    JavaScript
  • $30 hourly
    • 5.0/5
    • (10 jobs)
    He is an experienced software engineer with strong knowledge of OOP and design patterns. He has rich experience on Microsoft web/desktop stacks, including C#, WPF, ASP.NET MVC, Web API, SQL Server and Azure. He specialized in creating complex web service using modern tech stack like PHP/Laravel, Node.js, and ASP.NET. He has also over five years of experience in C#, Python, PHP and MySQL. He is very self-motivated and is always willing to introduce improvements into the work process. Technologies: 👨‍💻 Programming Languages: C#, Python, JavaScript/Typescript 👨‍💻 Backend: ASP.NET core, Django, Node.js 👨‍💻 Frontend: XAML, React 👨‍💻 Hosting: Azure, GCP, AWS 👨‍💻 Agile: Trello, Asana, Azure pipeline 🔑 Keywords: C#, WPF, ASTP.NET, Fullstack development, Fullstack programming, React, Vue, Node.js, Nest.js, Frontend development, Backend development, Fullstack technologies, JavaScript, UI/UX design, Single-page applications, State management, RESTful APIs, GraphQL, Database management, Authentication and authorization, Frontend testing, Backend testing, Deployment and scaling, Fullstack frameworks, Cross-functional development, MEAN stack, MERN stack, LAMP stack, Fullstack toolkits, Microservices architecture, Responsive web design, Serverless architecture, Fullstack security, Progressive web apps, Fullstack performance, Fullstack design patterns, Fullstack best practices, Fullstack development tools, Fullstack debugging, Continuous integration, Fullstack project management, Fullstack project structure, Mobile app development, Responsive images, Fullstack deployment, Web design trends, Fullstack code reviews, Real-time web apps, Web components, Hybrid mobile apps, Serverless frontend and backend, Fullstack optimization, Fullstack challenges, Fullstack architecture, Fullstack project planning, Fullstack coding patterns, Fullstack version control, Fullstack API development, Fullstack database management, Fullstack authentication, Fullstack security practices, Fullstack CI/CD, Fullstack performance tuning, Fullstack error handling, Fullstack debugging tools, Fullstack scalability, Fullstack containerization, Fullstack caching strategies, Fullstack deployment strategies, Fullstack database scaling, Fullstack monitoring tools, Fullstack documentation practices, Fullstack code quality, Fullstack communication protocols, Fullstack collaboration tools, Fullstack design principles, Fullstack data storage, Fullstack load balancing, Fullstack application optimization, Fullstack deployment automation, Fullstack CI/CD pipelines, Fullstack best practices, Fullstack security auditing, Fullstack encryption methods, Fullstack version control systems, Fullstack scalability solutions, Fullstack backup and recovery, Fullstack event-driven architecture, Fullstack data replication, Fullstack performance monitoring, Fullstack error monitoring
    Featured Skill Blockchain
    Web3
    Solana
    Ethereum
    XAML
    React
    Django
    Python
    C++
    C#
  • $15 hourly
    • 5.0/5
    • (5 jobs)
    🌟 Experienced UI/UX Designer | Innovative Thinker | User-Centric Solutions 🌟 Greetings! I am a skilled UI/UX designer based in Ukraine, with a passion for creating intuitive, visually appealing, and user-friendly interfaces. With 10 years of hands-on experience, I excel in translating ideas into wireframes, mockups, and interactive prototypes. My expertise includes conducting user research, creating personas, and crafting seamless user experiences tailored to diverse target audiences. I specialize in utilizing tools like Figma and Adobe Photoshop to design elegant interfaces and engaging interactions. My goal is to elevate your digital presence by enhancing your website or application’s usability and aesthetics. I am committed to understanding your business objectives and delivering designs that align perfectly with your brand identity. Let’s collaborate to transform your vision into a delightful user experience! I am dedicated to exceeding your expectations and delivering high-quality designs within deadlines. Feel free to reach out, and let’s create something extraordinary together. 💎Design Type: Mobile App Design, Responsive Design, Software Design, Web Design, Custom Web Design, Game UI/UX Design, GUI Design, High Fidelity Design, Adaptive Web Design, Mobile UI Design, UI UX Designer, User Interface Design, User Experience Design. 🎯 Deliverables: Style Guide, Prototyping, Mockup, Website Asset 💪 My Skills: Design Mockup, Graphic Design, Interactive Design, Interactive Mockup, UI/UX Prototyping, User Experience Strategy, Visual Communication, Wireframing, Prototyping, Information Architecture, Competitive Analysis, User-Centered Design, Human-Centered Design, Interaction Design. ⚙️ Tools I use: • Axure RP, Balsamiq, Zeplin • Adobe Illustrator, Adobe XD, Adobe Photoshop • Figma, Webflow, Readymag KEYWORDS: User Experience, eCommerce, UX/UI, Adobe Photoshop, Axure, Adobe Illustrator, UI/UX, Photoshop to Figma, Figma, UI Design, website, UI Designer, UI redesign, Artificial Intelligence, AI, UX designer for website, Web designer, Graphic design, Graphic designer, Web3 design, Mockup, user interface design, user experience design, UX research, responsive web design, website wireframing, mobile UI design, UI/UX design for web app, needed, UI/UX, webpages Design, STARTUP, iOS app design, Android and iOS app design, Web design, Pitch deck, Web3, Blockchain, UED.
    Featured Skill Blockchain
    Dashboard
    SaaS
    Web3
    Cryptocurrency
    WordPress
    User Experience Design
    User Interface Design
    Adobe Photoshop
    Webflow
    Web Design
    Responsive Design
    Figma
    Landing Page
    UX & UI
  • $45 hourly
    • 4.4/5
    • (7 jobs)
    I offer Blockchain, NFT, Smart Contracts, CEX, DEX, DeFi solutions, Cryptomarketplaces and other web and mobile development applications. I have almost 6 years of expertise as a developer and for the past few years, I’ve been working as a Blockchain engineer. I have experience with different web3 projects, from wallets, crypto exchanges (DEX & CEX) to NFT minting websites and marketplaces. I'm part of Codemotion, a team of blockchain, web and mobile developers. OUR FOCUS AREAS OF BLOCKCHAIN DEVELOPMENT ✅ Custom Blockchain Solutions (Development / Integrations); ✅ Development of Crypto Wallets; ✅ Crypto to Fiat apps development; ✅ Solutions for Decentralized Finances (DeFi); ✅ Trading bots & arbitrage software; ✅ Consulting: smart contract audit; ✅ Crowdfunding Blockchain Platforms; ✅ Analytics Tools for Crypto; ✅ Cryptocurrency Exchanges Development (DEX & CEX); ✅ Blockchain integration for CRM&ERP; ✅ NFT Collections & Minting ✅ Telegram Miniapps; ✅ Decentralized Applications Development (Dapps); ✅ Smart Contracts Development; ✅ ICO, LGE, IPFS, IDO and IEO Development. Our team is ready for various types of collaborations: • Project-Based Work: Rapid prototyping, bug fixing, feature enhancements, performance tuning, and detailed code reviews. • Ongoing Partnerships: Regular product updates, continuous enhancements, and sustained technical support. • Complete Product Development: Comprehensive services covering everything from initial planning and system design to implementation, launch, and ongoing support. • Custom Pricing Structures: Choose between hourly billing or fixed-budget projects customized to your preferences. • Dynamic Team Expansion: Quickly scale up with specialized developer resources assembled and managed according to your project demands. Main technologies we work with: Ethereum┃Litecoin┃Solidity┃Flow┃HardHat┃Web3.js┃Tron┃Ethers.js┃Polygon┃BTC┃Rust┃Avalanche┃Cardano┃Solana┃Polkadot I prioritize clear communication, transparency, and achieving meaningful business results. My work emphasizes clean, maintainable, and secure code, with user-focused design and reliable performance at its core. Fluent in English, I collaborate smoothly with international teams to deliver exceptional outcomes. Ready to launch a fast MVP or need strategic consultancy ? I offer top-tier development solutions, combining technical skills with effective team leadership to bring your vision to life. 🚀
    Featured Skill Blockchain
    Mobile App Development
    Hybrid App Development
    NFT
    Smart Contract
    DeFi
    React
    Telegram
    Rust
    Solana
    Web3
    Mobile App
    Web Development
    React Native
    JavaScript
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