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.