Developer with 6+ years of experience developing applications for iOS• Proficient in Swift, SwiftUI, Objective-C, as well as many Apple and third-party frameworks/tools• An enthusiastic team player with a product-oriented mindset and excellent problem-solving skills, I enjoy building robust, responsive, and user-friendly applicationsMy IOS applications:• Swippy: an innovative language learning app designed to enhance your vocabularyDiscover it here: https://apple.co/40S0hb3• ExpenseEase Tracker: an iOS app designed to simplify your expense tracking. Discover it here: https://apple.co/4cDcZRyGitHub: github.com/spirit221Programming Languages: Swift, Objective-C, Flutter, KotlinPlatforms: iOS, tvOS, macOS, Mac CatalystFrameworks and Libraries: SwiftUI, UIKit, Combine, RxSwift, CoreData, RealmOther: REST, Fastlane, Firebase, Git📞Contacts:TG: @spirit221Feel free to contact and ask for any questions! 🙂
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Ios EngineerRevolutPorto, Pt
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Senior Ios DeveloperWhite-Label Fintech Software Development Company (Nda) Jul 2023 - PresentA product company with 250+ employees developing whitelabel crypto wallet• Optimized the CI/CD build automation process, reducing pipeline wait time by ≈60%.• Simplified and expedited the cryptocurrency purchase flow, improving the conversion funnel from 32% to 73%.•Introduced the UseCase business logic entity, decreasing the amount of logic in the presentation layer by ≈40%.Stack: Swift, SwiftUI, MVVM, RxSwift, FastLane, Tuist, SPM, Blockchain
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Senior Ios DeveloperWx.Network Oct 2020 - Jul 2023A product company with 500+ employees developing its own blockchain and exchange• Achieved over 100,000 downloads by launching decentralized crypto exchange apps on iOS and Android.• Improved performance and reduced development costs by 55% by leading a rewrite from Swift/Kotlin to Flutter.• Increased App Store rating to 4.5 by resolving a critical multithreading auth bug, positively impacting 45% of users.• Achieved a 180% faster wallet loading speed by optimizing and refactoring the data retrieval process.• Covered 90% of the business logic code by developing and executing extensive test cases.Stack: Swift, SwiftUI, Kotlin, Flutter, CocoaPods, Architecture, VIPER, RxSwift, Blockchain, B2C -
Lead Ios DeveloperFirst Line Software Sep 2019 - Nov 2020St Petersburg, St Petersburg City, RussiaAn outsourcing company with 300+ employees that collaborated with the largest retail in Russia• Led and mentored a team of 2 people to successfully build and launch the application.• Enhanced user experience by 60% by improving the performance of the main screen of the application.Stack: Swift, UIKit, MVP, Continuous Integration, Unit Testing, UI Testing, REST, JSON, Firebase, Agile -
Ios DeveloperAdcombo Feb 2019 - Aug 2019St Petersburg, St Petersburg City, RussiaA product company with 10+ employees specializing in applications with a subscription model• Increased subscription revenue by over 50% by executing impactful A/B tests on the subscription screen.• Developed and published iOS apps from scratch before publishing 2 apps in 3 monthsStack: Swift, UIKit, MVVM, TDD, APN, Extension, Facebook Analytics, AppsFlyer, Cycript, Frida -
Ios DeveloperFirst Computer Aid May 2018 - Feb 2019St Petersburg, St Petersburg City, RussiaA product company with 10+ employees specializing in the repair of computer equipment• Developed and designed the application from scratch, including features such as registering repairmen, receiving orders, sending reports, and viewing statistics.• Managed, operated, and supported 2 applications by leading a team of two, responsible for iOS app development, App Store communication, task distribution, and estimation of development time.Stack: Swift, Objective-C, MVC, Firebase, MapKit, CocoaPods, SnapKit, UX/UI, object-oriented programming
Sergey G. Education Details
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Information And Analytical Security Systems
Frequently Asked Questions about Sergey G.
What company does Sergey G. work for?
Sergey G. works for Revolut
What is Sergey G.'s role at the current company?
Sergey G.'s current role is iOS Engineer.
What schools did Sergey G. attend?
Sergey G. attended Peter The Great St.petersburg Polytechnic University.
Who are Sergey G.'s colleagues?
Sergey G.'s colleagues are Ángel Roberto Barbosa González, José Rui Santana Nogueira, Farhan Ahmed, Bartosz Ślusarczyk, Giuseppe Pietro Diana, Kajol Tamang, Ronald Ayllon Urquizo.
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