Yurii T.

Building a high-performance mobile app or a secure Web3/Solana platform? You need architecture that scales, not just code that runs. I’m a Top Rated Plus Full-Stack Engineer with 5+ years of experience engineering mobile and crypto products from the ground up. My focus is bridging complex backend systems and smart contracts with smooth, consumer-grade mobile experiences. I don't just close tickets; I partner with founders to optimize technical decisions, ensure security, and reduce time-to-market. 💡 What Problems Do I Solve: - Seamlessly connecting mobile apps to blockchain networks (Solana), integrating wallets, and ensuring secure, fast transactions. - Building responsive, native-feeling apps using React Native and Expo that run flawlessly on both iOS and Android. - Designing robust Node.js/NestJS APIs and GraphQL endpoints that can handle high user loads without bottlenecks. - Connecting LLM APIs into mobile interfaces for seamless chat and intelligent agentic reasoning. - Refactoring messy, legacy codebases for speed, security, and long-term maintainability. 🛠 Core Tech Stack: - React Native, Expo, React, Next.js, TypeScript - Node.js, NestJS, Express, PostgreSQL, MongoDB, GraphQL, REST - Solana, Web3.js, Ethers.js, WalletConnect 🏆 Recent Highlights: Mobile Trading App (Solana): Built a responsive, secure mobile interface for a crypto trading platform with real-time data handling. AI Agent Mobile App: Developed an application featuring an intelligent AI agent capable of memory retention and adaptive task execution. Investment Learning Platform: Optimized video course performance and integrated Zoom for seamless live sessions. Let’s hop on a quick 15-minute call to discuss your project's architecture and how we can launch it efficiently.