Oleksandr A.

🚀 I build production-grade Flutter systems for companies that care about performance, scalability, and long-term architecture - not prototypes, not MVP experiments, but real products with real users and real constraints. I’m a Flutter Engineer with 5+ years of experience delivering complex applications across iOS, Android, Web (PWA), and desktop (Windows/macOS). My work sits at the intersection of engineering, architecture, and product execution - where decisions directly affect performance, scalability, and business outcomes. I don’t “implement features”. I design systems that survive scale. ⚡ Engineering scope I operate in: 🔹 System-level Flutter architecture I design modular, feature-based architectures where state, UI, and business logic are strictly separated and built to scale. I take responsibility for structure decisions that determine how maintainable the product will be after 6–12 months of growth. 🔹 Performance-critical UI engineering I work on Flutter systems where default widget rendering is not enough. In one case, I replaced a widget-based video timeline with a custom Canvas/CustomPainter rendering engine to eliminate severe performance bottlenecks in multi-layer, long-duration animated scenes. 🔹 Real-time distributed systems I build WebSocket-based architectures for chat, live tracking, event-driven updates, and synchronized multi-device states. This includes backend coordination (Firebase / Supabase / custom APIs) and resilient notification pipelines. 🔹 Cross-platform product engineering I ship and maintain single-codebase applications across mobile, web, and desktop, handling platform-specific constraints, performance differences, and UX consistency without fragmenting the architecture. 🔹 AI-native product integration I integrate AI capabilities directly into production workflows - including voice cloning, generative media pipelines, and AI-driven content systems embedded into Flutter applications with real-time interaction layers. 💼 Selected production systems: 🎬 Rive Movie Studio (Windows + macOS) An AI-powered video editing system with multi-layer timeline, animation engine (Rive), and generative media pipeline. I owned frontend architecture and re-engineered the rendering system into a custom Canvas-based engine, implemented keyframe animation mechanics, drag-and-drop timeline interaction, and integrated AI voice + video generation workflows. This project required solving performance, state complexity, and real-time interaction at the same time. 📱 TrulieMe (iOS + Android) A real-time gamified social platform with chat, leaderboards, subscriptions, and in-app purchases. I designed the scalable content architecture, implemented WebSocket communication layer, and built full lifecycle flows for notifications, monetization, and real-time state sync. 📊 CRM PWA (Web) A high-load internal CRM system with real-time communication, analytics dashboards, and large dataset interaction. Focus: performance optimization, state consistency, and UI responsiveness under heavy usage. ☕ CoffeNow (Mobile) Full delivery ecosystem: Stripe payments, Google Maps courier tracking, WebSocket-based live updates, push notifications, and complete order lifecycle orchestration. ⚙️ Tech stack (production usage, not experiments): Flutter • Clean Architecture • BLoC/Cubit • Riverpod • Firebase • Supabase • WebSockets • REST APIs • Stripe • FFmpeg • Rive • GetIt • GoRouter • Hive • CI/CD pipelines 🧠 How I approach engineering problems: I operate like a system designer, not a UI implementer. Before writing code, I define: system boundaries data flow direction state ownership failure points under scale coupling risks between modules Most Flutter codebases don’t fail because of Flutter. They fail because architecture decisions were treated as implementation details. 📌 Best-fit engagements: ✔ High-performance Flutter applications ✔ Real-time systems (chat, tracking, live sync) ✔ AI-integrated products ✔ Cross-platform 🔑 Flutter developer | Flutter desktop app developer | Flutter mobile app developer | Real-time Flutter app | AI Flutter integration | Flutter BLoC | Flutter Riverpod | Flutter Supabase Firebase | Flutter WebSocket | Flutter PWA | Flutter CustomPainter | In-app purchases Flutter | Flutter clean architecture | Cross-platform Flutter developer | Flutter iOS Android | MVP Flutter app
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