Senior iOS Developer

. Build and maintain scalable, high-quality iOS applications using Swift and SwiftUI .

Posted 9/25/2026full-timeİstanbul • TurkeySeniorWebsite

Tools & technologies

FlutteriOSSwift

Key responsibilities & impact

Build and maintain scalable, high-quality iOS applications using Swift and SwiftUI
Own the native iOS layer in Flutter apps, including architecture, integrations and platform-specific capabilities
Build and ship Apple-native features including WidgetKit widgets, Live Activities, Dynamic Island, App Intents, Siri Shortcuts, push and notification extensions, Share extensions, Sign in with Apple and StoreKit 2
Bring AI capabilities to the native side using Core ML, on-device models, Apple Intelligence APIs, Speech and Vision frameworks
Design and evolve maintainable iOS architectures, reusable components and boundaries between native and Flutter layers
Profile and optimize app performance, startup time, memory usage and responsiveness using Instruments and production monitoring tools
Ensure apps work across supported iPhone and iPad screen sizes, OS versions and form factors
Improve testing, code review, CI/CD, release processes and mobile observability
Mentor the team by reviewing native code, writing internal guidelines, running knowledge-sharing sessions and helping Flutter developers build iOS expertise

What you’ll need

At least 5 years of professional iOS development experience, including apps shipped and maintained in production on the App Store
Strong interest in the Apple ecosystem and modern iOS engineering practices
Strong proficiency in Swift and hands-on production experience with SwiftUI
Strong knowledge of iOS application architecture, application lifecycle, modular design and platform APIs
Strong knowledge of app extensions, WidgetKit, background modes, push notifications, StoreKit and the app lifecycle
Understanding of Swift Concurrency, including async/await, actors, structured concurrency and thread safety
Strong understanding of ARC, memory management, retain cycles and performance profiling
Comfortable using Instruments and production diagnostics
Experience with Xcode project configuration, code signing, provisioning, CI/CD and the full App Store release process
Experience investigating production issues using crash reports, logs, metrics and profiling tools
Experience connecting native iOS code with a cross-platform framework, or strong willingness to learn Flutter
Working proficiency in English
A bachelor's degree in Computer Engineering, Computer Science or a related field, or equivalent practical experience

Comp & perks