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Artem Ziniuk
iOS Developer
[відкрити контакти](див. вище в блоці «контактна інформація») Ukraine
ziniuk-9365a111b (LinkedIn)

Experience
Top Skills
iOS LetyShops
Мобильные приложения iOS Developer
REST December 2018 - August 2024 (5 years 9 months)
Vinnytsya, Ukraine

Responsibilities:
- Collaborated with cross-functional teams, including product managers,
designers, and backend engineers, to develop and maintain iOS applications.
- Designed and implemented robust, scalable, and maintainable mobile
application aligned with product requirements and user needs.
- Integrated RESTful APIs and third-party libraries to enhance app functionality
and ensure seamless user experiences.
- Conducted performance tuning, memory optimization, and debugging to
improve app efficiency and reliability.
- Wrote clean, testable, and reusable code following industry best practices
and design patterns.
- Participated in code reviews, shared technical insights, and contributed to the
continuous improvement of development processes.
- Monitored and analyzed crash reports and feedback to address issues and
improve app quality.

Programming Languages:
- Swift, ObjectiveC.

Architectures:
- MVC, MVP, MVVM, VIPER, RCA, TCA.

Technologies & Frameworks:
- UIKit, SwiftUI, Combine, RxSwift, AutoLayout, Storyboards / XIBs.
- CoreData, Realm, UserDefaults, Keychain.
- Alamofire, URLSession, OAuth 2.0, JWT.
- Facebook, Branch, Firebase (Analytics, Crashlytics, Push Notifications,
Deeplinks, Universal links).
- Cocoapods, SPM, SwiftLint, SwiftFormat.
- GCD, NSOperationQueue, AVFoundation, ARKit.
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Tools:
- Xcode, Instruments, Charles Proxy, Postman.
- Git, GitHub, Bitbucket.
- CI/CD pipelines using GitHub Actions.
- TestFlight, App Store Connect, Fasline

App Distribution:
- Successfully delivered an app to the App Store, adhering to Apple's
guidelines and ensuring smooth user onboarding.

Achievements:
- Reduced app crash rates by 15% using analytics tools.
- Played a key role in migrating a legacy, outsourcing app to newest
architectures, rewriting 80%+ of codebase within 3 years.

SteelKiwi Development
2 years 6 months

iOS developer
August 2016 - November 2018 (2 years 4 months)
Vinnytsia Region, Ukraine

Develop business and social apps. Scope of my responsibilities:
- Software development.
- Design app architecture.
- Communicate with clients.
- Estimate projects.
- Conduct full development lifecycle.
- Submit apps to App Store.

trainee
June 2016 - August 2016 (3 months)
Vinnytsia Region, Ukraine

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