About
Highly skilled iOS Developer with 4 years of experience, specializing in building and modernizing large-scale mobile applications. Proven ability to deliver high-impact digital banking features for super-apps, enhancing user experience and driving significant user engagement. A product-minded professional focused on scalable architecture, performance, and reliable user-centric mobile solutions.
Work
DevCats LLC (O!Bank)
|iOS Developer
Bishkek, Chuy Region, Kyrgyzstan
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Summary
As an iOS Developer at DevCats LLC, Erni developed and optimized digital banking features for the 'O!Bank' super-app, driving significant user engagement and platform modernization.
Highlights
Engineered critical digital banking features for a high-load super-app, reaching over 1.1M+ Monthly Active Users (MAU) and 5.5M+ total downloads.
Spearheaded the migration of the iOS stack from UIKit/RxSwift to SwiftUI/Combine/Swift Concurrency, cutting boilerplate code by 40% and boosting feature delivery speed by 15%.
Launched an innovative direct-sharing QR scanner feature, streamlining user flow by 66%, eliminating manual photo saving, and significantly increasing user conversion.
Enhanced application stability by 35% through proactive identification and resolution of critical production issues using Firebase Crashlytics.
Collaborated cross-functionally with backend, Android, product, design, and QA teams in an Agile setting to deliver features with consistent and high-quality user experience.
O! Mobile Operator
|Junior iOS Developer
Bishkek, Chuy Region, Kyrgyzstan
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Summary
As a Junior iOS Developer, Erni contributed to the development and enhancement of a high-load super-app for Kyrgyzstan's leading mobile operator.
Highlights
Developed and implemented a streamlined user flow for home internet connection applications, significantly simplifying the customer onboarding process.
Maintained and optimized critical telecom modules within a high-load super-app, serving millions of subscribers.
Integrated and configured Firebase for comprehensive analytics event tracking and logging, providing crucial data for product insights and debugging.
Skills
Architecture
MVC, MVVM-C, Clean Architecture.
Reactive/Concurrency
RxSwift, Combine, GCD, Swift Concurrency.
Networking
URLSession, Alamofire, Moya, REST API, Swagger.
Persistence
UserDefaults, Keychain, CoreData.
Testing
XCTest, Snapshot Testing.
Services
Firebase (Crashlytics, Analytics), Push Notifications.
Core
Swift, UIKit, SwiftUI.
Others
Xcode, Git/GitLab, SPM, Jira, Proxyman, Figma.