Vitalik H.

Senior mobile systems engineer with 11+ years of experience building real-time Flutter, Android, iOS, and KMP applications. Specialized in IoT-connected systems, BLE, logistics/ELD compliance, offline-first architectures, and scalable backend integration. 💡 What I can do for you ✅ Build high-quality mobile apps (iOS, Android, Flutter, KMP) ✅ Design scalable architecture from scratch ✅ Integrate APIs, real-time systems, and backend services ✅ Fix complex bugs and improve app performance ✅ Add AI-powered features (ChatGPT, automation, smart workflows) ✅ Audit and refactor existing codebases My core expertise • Mobile: Flutter, Android (Kotlin), iOS (Swift) • Cross-platform: Kotlin Multiplatform (KMP), shared modules, platform integration • Architecture: Clean Architecture, MVVM, modular systems • Backend: Ktor, REST APIs, SSE, real-time communication • Databases: SQLite, Room, Drift, MongoDB • AI: LLM integrations, prompt design, AI-assisted workflows. How I work • Clear communication and fast response • Strong focus on quality and deadlines • I think in terms of business value, not just code • Fast estimation and efficient execution What you get • Clean, maintainable, production-ready code • Reliable delivery without surprises • A long-term technical partner, not just a freelancer If you’re looking for someone who can take ownership and deliver real results — feel free to reach out.