Hi, I’m Ratko, a Blockchain and Full-Stack Developer specializing in decentralized applications (dApps), smart contracts, and cross-platform mobile/web solutions. With 6+ years of hands-on experience, I help startups and enterprises build secure, scalable, and high-performance blockchain and software solutions. ?️ Core Skills: ✔ Blockchain Development – Ethereum, Solidity, Smart Contracts, Web3.js, Hardhat, Truffle ✔ Web Development – React.js, Next.js, Node.js, Express, MongoDB, Firebase ✔ Mobile Development – React Native, Flutter, iOS & Android Apps ✔ DeFi & NFT Solutions – Tokenomics, ERC-20/721, DAOs, Wallet Integration ✔ Backend & DevOps – AWS, Docker, CI/CD, GraphQL, REST APIs ? Why Hire Me? ✅ Delivered 50+ projects – Built secure dApps, enterprise web apps, and mobile solutions ✅ Problem-Solver – Strong debugging & optimization skills for performance and security ✅ Full-Cycle Development – From concept to deployment & maintenance ✅ Client-Focused – Clear communication, on-time delivery, and scalable solutions Let’s turn your idea into a cutting-edge blockchain or web/mobile product! Message me to discuss your project.