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Okariuss/README.md

Hi, I'm Okan 👋

iOS Developer · Swift · UIKit · SwiftUI

I build practical iOS applications with clear architecture, modern Swift, and reliable tests.

Portfolio · LinkedIn · Medium


About Me

I am an iOS Developer with professional experience in Swift and UIKit.

At Skyland, I developed features for enterprise airline applications. I worked on app-wide search, offline data, REST APIs, security improvements, and UI development. After my full-time role ended, I continued to support a legacy Objective-C and AWS project when needed.

I later completed the iCommunity Advanced iOS Bootcamp. During the program, I studied modular architecture, design systems, dependency injection, testing, code quality, and CI workflows.

I also write technical articles about Swift, performance, collections, concurrency, and new Apple APIs.


Featured Projects

A modular currency rate application built with UIKit, Swift 6, and Tuist. It was developed as my Advanced iOS Bootcamp graduation project and submitted to the App Store.

  • Programmatic UIKit and MVVM-C
  • Modular structure with Tuist and dependency injection
  • Swift Concurrency and offline cache fallback
  • Unit, accessibility, localization, coordinator, and snapshot tests
  • SwiftLint, SwiftFormat, OSLog, and GitHub Actions

An iOS application for creating and running multi-step AI workflows directly on the device.

  • SwiftUI and MVVM
  • Foundation Models and SwiftData
  • Swift Concurrency
  • App Intents, Live Activities, and WidgetKit

A collection of small SwiftUI applications that I built while learning modern iOS development patterns.

  • MVVM and feature-based structure
  • Core Data, Combine, MapKit, and animations
  • Swift Testing

Professional Experience

At Skyland, I worked on Swift and UIKit applications used in enterprise airline operations.

  • Developed new screens, product features, and an app-wide search experience
  • Worked with Realm for offline data and read-state synchronization
  • Used Core Data, Alamofire, Firebase, and Git Flow in existing projects
  • Worked on Keychain storage, SSL pinning, and MITM security findings
  • Supported Objective-C UI work and AWS services during an on-demand freelance period

Technologies

Area Technologies
iOS Swift, UIKit, SwiftUI
Architecture MVVM, MVVM-C, Coordinator, Dependency Injection
Concurrency async/await, Task, actors, structured concurrency
Data Core Data, Realm, SwiftData
Networking URLSession, REST APIs, Alamofire
Quality Swift Testing, XCTest, Snapshot Testing, SwiftLint, SwiftFormat
Tools Tuist, Git, Git Flow, GitHub Actions, OSLog

Writing and Learning

I learn by building projects, reading technical resources, and explaining what I learn in simple language. You can find my articles on Medium.

Topics include Swift performance, collection types, concurrency, memory management, and new Swift APIs.


Connect

I am open to iOS Developer opportunities and technical conversations about Swift and iOS development.

Pinned Loading

  1. Advanced-Swift Advanced-Swift Public

    Swift 2

  2. WWDC26 WWDC26 Public

    Swift

  3. ForexApp ForexApp Public

    A modular iOS currency exchange app built with UIKit, Tuist, Swift concurrency, and a clean MVVM-C architecture.

    Swift

  4. AIWorkflow AIWorkflow Public

    Fully on-device iOS app for creating and running multi-step AI workflows with SwiftUI, Live Activities, and Home Screen Widgets. Privacy-first, real-time, and portfolio-ready.

    Swift 2

  5. VIPER-base VIPER-base Public

    🚀 Modular iOS VIPER base project with Auth, onboarding, localization, and Firebase integration. Swift 6+, iOS 15+.

    Swift 5 1

  6. FocusFlow FocusFlow Public

    Swift