Roman R.

Greetings! I'm a skilled engineer with a significant understanding of many application development cycles. I enjoy developing high-quality software that fulfills various user requirements! My expertise including: 🎓E-Learning Apps 🏦 Banking Apps 🛒 Marketplaces 🚕 TAXI/Delivery Apps 📞 Calling Apps 📶 VOIP Apps ✈️ Airline Apps 🌐 Location Tracking 💰 Financial Apps 📱 Social Media/Dating Apps with Video and Audio Chat Features 🎥 Video and Audio Player Applications 🌟 Augmented Reality Applications With over seven years of immersive experience, I am your go-to specialist in iOS, MacOS and WatchOS development, driven by a passion for crafting exceptional digital experiences. I thrive in SCRUM/Agile environments, delivering outstanding results that speak for themselves. 🔹 My Development Skills: Swift, SwiftUI, UIKit, Objective-C, MVVM, MVP, MVC, VIPER, Composable Architecture(TCA) Design Patterns, REST API iOS, WatchOS and macOS development Material Design and Mobile UI/UX Firebase Integration (Cloud Messaging, Analytics, A/B Testing) Firebase Realtime Database and Storage (Firestore cloud) XCode, Open Source Tools Push Notifications (Silent, Custom, VOIP) Database Management: SQLite, CoreData Network Handling: Alamofire, Moya, URLSession Design: Figma, Canva, Sketch Crashlytics, Firebase, Fabric, LeakCanary, Timber SocketIO and SignalR expertise SwiftLint for Code Quality XCFramework, CocoaPods, OneSignal Library Biometric Authentication, OpenAI & ChatGPT API Sinch API, Augmented Reality (ARKit), Parental Control & ScreenTime API AirPlay, Picture-in-Picture CometChat SDK proficiency 🔹 Library Development and Management: iOS, iPhone SDKs Custom Library Development Publication of Libraries and SDKs Uploading SDKs to Package Managers and CocoaPods 🔹 Automotive Unit and UI Testing: XCTest, Unit Testing and UI Testing 🔹 API Integration: Beacons, Calendar API, QR Code Contacts API, Geolocation API, Maps Embed API Apple Pay, Street View, YouTube Live Streaming API In-App Purchases with Braintree GPS, Google Maps, Custom Markers, Foursquare, MapBox Push Notifications (Firebase Cloud Messaging, OneSignal) Social Media APIs (Google, Facebook, Twitter, Instagram, LinkedIn, YouTube) Video Chat (WebRTC, Twilio, Audio Streaming, LinPhone, JitsiMeetSDK, Agora, ZegoCloud) Custom Calendar, Media Gallery, Background Download/Upload Postman, CharlesProxy Deep Linking, Memory Leak Detection I am conversation in English and ready to take your iOS, iPhone, and MacOS development projects to the next level. Don't hesitate to get in touch, and let's create something remarkable together!