Kliepikov

Kliepikov Serhii
iOS Developer
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Katowice, Poland | github.com/SerhiiChink |
[відкрити контакти](див. вище в блоці «контактна інформація»)

SUMMARY
iOS Developer with 2 years of experience, including 1 year of commercial development. Shipped a live App Store product
with end-to-end ownership — architecture, networking, Firebase backend, and release. Built and maintains an app with real
users, role-based dashboards, and automated Cloud Functions. Proficient in Swift, UIKit, SwiftUI, MVVM, Combine, REST API
integration, and Firebase. Actively expanding skills in Swift Concurrency and Kotlin Multiplatform.

EXPERIENCE

Oct 2025 - Sep 2026 · iOS Developer (Freelance) Project - English Manager
App Store: apps.apple.com/us/app/english-manager/id6783298374 | github.com/SerhiiChink/English_Manager
• Designed and shipped a full-featured iOS app end-to-end, now live on the App Store with active users across Teacher
and Student roles.
• Built role-based dashboards covering scheduling, homework tracking, balance management, and payment flows for 2
user types.
• Automated balance updates via Firestore triggers - eliminating manual bookkeeping for 20+ tutors after every
completed lesson.
• Backend: Firebase Cloud Functions (Node.js) - 4 FCM push notification types per role, timezone-aware scheduling via
Cloud Scheduler, Firestore triggers for real-time sync across 5 core screens per user role.

SKILLS
UI: UIKit, SwiftUI, SnapKit, Auto Layout, Programmatic Layout, Storyboard, Texture (AsyncDisplayKit)
Architecture: MVVM, MVC, SOLID
Networking: URLSession, REST API, JSON / Codable, Alamofire
Reactive Programming: Combine, RxSwift / RxCocoa
Concurrency: GCD, Swift Concurrency (async/await)
Storage: Core Data, UserDefaults, Firebase Firestore, Realtime Database
Backend & Cloud: Firebase Auth, Cloud Functions (Node.js), FCM / APNs, Firebase Storage, Crashlytics
System APIs: EventKit, AVFoundation, CoreLocation
Tooling: SPM, CocoaPods, Git, Xcode, TestFlight, App Store Connect, XCTest, SwiftLint
Soft Skills: Self-directed, ownership mindset, code review practice, agile-friendly, async communication

PROJECTS
2026 Movies Browser - UIKit, Texture (AsyncDisplayKit), TMDB API
Movie discovery app built with Texture (AsyncDisplayKit) for high-performance async rendering. Browses TMDB API data
with smooth scrolling and full Accessibility support.
2026 Pokémon Browser - UIKit, URLSession, Core Data
App for browsing the Pokémon roster with instant search and detailed character pages. Supports offline viewing of
previously opened characters.
2025 News Feed - UIKit, URLSession, RSS Parsing, Core Data
Aggregated reader combining three RSS sources with saving and offline display of news articles.
2025 Currency Converter - UIKit, URLSession, REST API, Core Data
App for quick assessment of current exchange rates via bank API, with offline caching and buy/sell calculator.
2025 Events Calendar - UIKit, EventKit, AVFoundation, QR Code
Calendar countdown app with live timers and event sharing via QR code (AVFoundation), deep-link string, and
iMessage/email.

EDUCATION
Nov 2024 – Present iOS Development Program, FoxmindEd IT School
Expected graduation: December 2026.

• Swift fundamentals and advanced language features.
• UIKit & SwiftUI for building production-ready interfaces with MVVM architecture.
• Networking with URLSession and Alamofire, REST API integration, and error handling.
• Firebase (Auth, Firestore, Cloud Functions) and Core Data for data persistence.
• Reactive programming with Combine and RxSwift/RxCocoa, plus unit testing with XCTest.
Sep 2013 – Apr 2019 Master of Law, Yaroslav Mudryi National Law University

LANGUAGES
Ukrainian: Native
English: B2 Upper-Intermediate
Polish: A2