Pavel P.

Building for iOS and Android shouldn’t mean two separate teams, two codebases, and twice the headache. I design and build modern, high-performance mobile apps using Swift for iOS, Kotlin for Android, and Flutter when a single cross-platform codebase makes more sense for speed and budget. I have 10+ years of commercial experience and have delivered 50+ mobile apps. I’ve successfully delivered products in FinTech, HealthTech, EdTech, Food Delivery, E-commerce, Social, Travel, Hospitality, and SaaS, leading cross-functional teams of 3–10 engineers through the entire development cycle – from concept to App Store and Google Play launch. I don’t just ship features – I help you shape the product, optimize performance, and keep it easy to maintain. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗯𝘂𝗶𝗹𝗱 𝗳𝗼𝗿 𝘆𝗼𝘂: 1 Cross-platform apps with Flutter One codebase → iOS & Android apps with a native feel: *Real-time chat, messaging, audio/video calls, live feeds *Maps & geolocation (Google Maps, MapBox), routing, tracking *Push notifications, in-app messaging, smooth, fluid animations *In-app purchases & subscriptions, multi-currency support *REST / GraphQL APIs, Firebase, and third-party SDK integrations 2 Native iOS apps (Swift / SwiftUI / UIKit) *iPhone & iPad apps built with Swift or SwiftUI *Architectures: MVC, MVVM, VIPER, Clean Architecture, SOLID *Deep integrations: Core Data, CloudKit, HealthKit, CoreLocation, UserNotifications *App Store–ready UX that follows Apple HIG and feels fast, responsive, and polished 3 Native Android apps (Kotlin / Java) *Modern Android apps with Kotlin and Jetpack components *MVVM & Clean Architecture, Coroutines, LiveData, DataBinding *Room, Retrofit, SQL/MySQL, Firebase (Auth, Firestore/RTDB, FCM) *Clean, eye-catching UI optimized for different screen sizes and OS versions ✔Mobile tech stack iOS, Android & Flutter ✔Languages & Frameworks Swift, SwiftUI, UIKit, Kotlin, Java, Dart, Flutter ✔Architectures & Patterns MVC, MVVM, VIPER, Clean Architecture, SOLID, state management with BLoC, Riverpod, Provider, GetX ✔ Data, APIs & Cloud REST & GraphQL APIs, Firebase (Auth, Firestore/RTDB, Cloud Messaging), Room, Retrofit, SQL/MySQL, CloudKit ✔Platform Services & Features *Real-time chat & messaging, audio/video calls, live feeds *Maps & geolocation (Google Maps, MapBox), routing, tracking *Push notifications, in-app messaging, smooth animations ✔System Integrations (iOS & Android) *Core Data, HealthKit, CoreLocation, UserNotifications on iOS *Jetpack components (LiveData, ViewModel, DataBinding), Coroutines, Dagger/Hilt on Android ✔Monetization & Payments *In-app purchases & subscriptions, multi-currency support *Stripe, PayPal, Adyen, Razorpay, Apple Pay, Google Pay ✔Security, Performance & Scale *Secure authentication: OAuth, Firebase Auth, social logins, biometrics *Experience with GDPR and HIPAA-style data protection requirements *Performance tuning: startup time, FPS, scrolling smoothness, memory usage *Crash reduction & monitoring (Crashlytics, logs, analytics) *Async & concurrent execution: async/await, GCD, Coroutines *Targeted unit & UI tests, strong debugging and profiling skills ⭐️⭐️⭐️⭐️⭐️𝗖𝗼𝗻𝗰𝗿𝗲𝘁𝗲 𝗿𝗲𝘀𝘂𝗹𝘁𝘀 - Reduced crash rates by up to 30% with monitoring and refactoring - Shortened release cycles by 10–20% using CI/CD and better branching - Increased engagement and retention by 15–50% through UX and performance improvements 🚀𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 *Product-oriented: I connect technical decisions to your business model, roadmap, and KPIs. *Lead experience: I’ve led iOS/Flutter teams (3–10 people), run code reviews, and set architecture. *Clean architecture: Structured, testable, and maintainable code that future devs can understand. *Transparent process: Regular updates, clear estimates, and honest feedback. *Flexible collaboration: Comfortable joining an existing team or owning the full mobile stream (iOS, Android, Flutter). 🔥𝗬𝗲𝘀, 𝗜 𝗰𝗮𝗻 *Fix bugs and stabilize an existing app *Build a new app from idea → App Store & Google Play *Modernize legacy codebases and migrate to newer architectures *Integrate APIs, databases, and cloud services *Add real-time features, analytics, and push notifications 🤝𝗟𝗲𝘁’𝘀 𝘁𝗮𝗹𝗸 If you need a mobile engineer focused on iOS, Android, and Flutter only - someone who writes clean, scalable code and thinks about users and business impact, not just tickets - feel free to reach out. Send me a short description of your app (or a link to your current one), and I’ll share how I’d approach building or improving your iOS/Android/Flutter product.