- Write tech articles about iOS development on Medium. (30 articles)- Create videos about iOS development on YouTube. (77 videos)- Maintain the Telegram community Swift in UA.

Worked on Spark - the mail app. - Business logic for the different platforms: iOS, macOS, Windows, Android.- New features and support. - AppCenter integration.- Setup symbolication export script in CI.- Templates feature.- Unit Tests.

I worked on Mad Muscles, a workout and diet application.- New features and support.- Create an architecture update based on structured Swift Concurrency called ProcessCore.- Work with Firebase: AB-tests, application configurations, in-app purchases configurations.- Invent JSON-based interactive Quiz feature.- Create an onboarding chatbot feature.- Update UI, add Tips UI feature.- Interviewed new iOS developers.

Created and taught Selected Frameworks and Libraries, an author course. The course covered many system and 3rd-party iOS frameworks, dependency managers, and a complete cycle of developing and distributing personal frameworks. The total course duration was 20 hours.The course has 7 lectures and 7 labs on the following topics:- Libraries, frameworks, packets. (Frameworks theory, CocoaPods, Carthage, Swift Package Manager)- Location and working with Map. (CoreLocation, MapKit, GoogleMaps)- Networking. Working with URLSession and Alamofire. (URLSession, Alamofire)- Working with media. (AVFoundation)- Working with databases. (CoreData, Realm)- Local and remote notifications. (UserNotifications)- Creating and distributing frameworks. (Frameworks practice, CocoaPods, Swift Package Manager, Github).

I worked on Leobank, the fintech application for launching neobanks in emerging markets.- Maintain and scale the Leobank App from MVP-scratch to release in Azerbaijan.- Provide architecture and architectural solutions.- Create and support all primary features: Onboarding, Statements, P2P, Top Up Phone, Cashback, Settings, Utilities, Shake to Pay, etc... - Create a fast and accurate native credit card scanner.- Work with advanced interactive animations.- Create multiple frameworks inside the app.- Interviewed many iOS developers.- Build a solid and skilled large iOS team.

I worked on Privat24, a new version of Ukraine's biggest bank application.- Develop and support the app features: Statements, Utilities, P2P, Payments, etc...- Implement an effective Statements and Payments pagination to sync large time-based items. - Create an effective asset code generator template (for SwiftGen). Also, I worked on Liqpay SDK, a framework to integrate the proprietary acquiring system Liqpay into the partner's applications.- Integrate MasterPass SDK, the payment SDK by MasterCard.- Integrate Apple Pay.- Integrate LiqPay.

I was an iOS development mentor for two student groups. Creating iOS applications using Swift programming language.