Mykhailo H. iOS developer
Summary
A seasoned iOS developer with over 7 years of experience, specializing in the Apple ecosystem. Proficient in Swift, Objective-C, SwiftUI, and Kotlin, with strong expertise in reactive programming, databases, networking, and multithreading. This engineer is adept in implementing various architectural patterns such as MVVM, Singleton, and Dependency Injection. Their technical background is solidified by a Master's degree in System Engineering and Computer Science. Their professional portfolio spans several domains, including Security, Healthcare, and FinTech, showcasing a versatile approach to app development. Key contributions include developing CI/CD pipelines, performing comprehensive testing, and successful App Store deployment. Strengths include advanced knowledge of networking protocols, database management, and multiparadigm programming, making the engineer a well-rounded candidate for complex iOS projects.
Work Experience
iOS developer, App blocking application
Duration: 2023-07 to 2024-08
Summary: An app for childproofing devices by blocking apps with Screen Time API integration.
Responsibilities: Led comprehensive UI redesign from code, developed application blocking logic using Screen Time API, integrated Firebase Analytics, conducted extensive refactoring including data collection optimization and AppStore subscription logic, and managed application release process.
Technologies: Objective-C, UIKit, GCD, Networking, AppleSignIn, FacebookSignIn, CoreData, InAppPurchases, PushNotifications, GoogleAds, Firebase SDK, FacebookSDK, CocoaPods
iOS developer, Crossword puzzle application
Duration: 2023-02 to 2023-06
Summary: A crossword puzzle app with daily tournaments, hints, and in-app purchases for game coins.
Responsibilities: Implemented UI design, developed application navigation, led refactoring and new feature integrations, optimized application distribution and memory consumption.
Technologies: Swift, SwiftUI, Modular architecture, MVP, UIKit, GCD, Swift Package Manager, Networking, UserDefaults, Keychain, Swinject, Twillio, GraphQL
iOS developer, Healthcare application
Duration: 2021-11 to 2023-01
Summary: A medical app for scheduling appointments with doctors, managing medications and health tips.
Responsibilities: Developed the app architecture using the MVP model, created custom UI components and business logic, conducted code reviews and provided development mentorship.
Technologies: Swift, MVP (with coordinator), GoogleSignIn, AppleSignIn, RestAPI, SpriteKit, CoreMotion, Fastlane, WebRTC, third-party libraries (Kingfisher), AVFoundation, XMPPFramework, MFMailComposeViewController, CocoaLumberjack, PushNotifications, CoreData
iOS developer, Content promotion and broadcasting application
Duration: 2020-09 to 2021-10
Summary: A content promotion and online video broadcasting app with interactive audience engagement.
Responsibilities: Led project development, implemented custom UI, improved video quality, integrated chats using XMPP, set up WebRTC streams relayed via Janus, established multiple development environments for testing different app versions.
Technologies: Swift, MVP (with coordinator), Core Location, Google Maps, REST, UIImagePicker, UIDocumentPicker, third-party libraries, AVFoundation, Security, push notifications
iOS developer, Enterprise resource management application
Duration: 2020-03 to 2020-08
Summary: Enterprise resource management web application focusing on access control, resource usage statistics, and asset evaluation.
Responsibilities: Initiated dynamic app development, contributed to planning and functionality estimation, wrote reusable code enhancing MVP-C architecture.
Technologies: Swift, Objective-C, EncryptedCoreData, CallKit, Networking
iOS developer, Security chat application
Duration: 2019-10 to 2020-02
Summary: A high-security chat application for company employees with invitation-only access and encrypted data storage.
Responsibilities: Implemented UI end-to-end, architected the app with Swift and Objective-C, refactored codebase for efficiency, and contributed to the feature implementation.
Technologies: Swift, Core Data, Fastlane, Networking, GoogleAds
iOS developer, Entertainment and e-commerce combined chat application
Duration: 2018-12 to 2019-02
Summary: Interactive chat featuring a 2D animated character, AI-powered conversations, and an e-commerce integration.
Responsibilities: Developed local storage and a network manager, led project refactoring, implemented new features, and supported with ongoing bug fixes and user experience enhancement.
Technologies: Objective-C, FMDB, Core Data, Core Location, Runtime
iOS developer, E-commerce sushi delivery application
Duration: 2018-05 to 2018-11
Summary: Mobile app for sushi delivery with online ordering, discount management, and payment system.
Responsibilities: Established local storage and network management, led comprehensive refactoring to improve performance and scalability.
Technologies: Swift, FMDB, Core Bluetooth, Core Location
iOS developer, Beacon tracking framework and demo application
Duration: 2017-10 to 2018-04
Summary: Framework for tracking different types of beacons and corresponding demo application.
Responsibilities: Managed local storage and network communication, implemented scanning features for iBeacons and peripherals, streamlined framework build script.
Technologies: Swift, UIKit, Core Data, Fastlane, Fabric, Deep Links
iOS developer, PresentAR augmented reality app
Duration: 2019-03 to 2019-09
Summary: Augmented reality platform for brand storytelling via presentation materials, including 3D models and videos.
Responsibilities: Led UI implementation, developed scalable and efficient codebase, introduced AR module, managed app publishing and CI setup.
Technologies: Networking, Clean-swift, Jira, delegation, third-party libraries, Core Animation
iOS developer, FinTech business application
Duration: 2017-02 to 2017-09
Summary: Business application for managing funds, performing banking transactions, adhering to legal standards for EU countries.
Responsibilities: Implemented UI and clean Swift codebase, refactored using Clean Swift, aligned executions with documentation and standards.
Technologies: Networking, Clean-swift pattern
Education
- Master's degree in System Engineering and Computer Science
V. N. Karazin Kharkiv National University