01.09.2026 aktualisiert
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Senior iOS Developer | Swift, SwiftUI & UIKit | App Modernisation & Performance
Mainz, Deutschland
Weltweit
Bachelor of Science in Software EngineeringÜber mich
I help teams ship iOS features and improve existing apps. With 8+ years in mobile development, I bring hands-on experience in Swift, SwiftUI and UIKit. Based in Mainz, Germany, I work in English and focus on maintainable code, reliable releases and clear communication.
Skills
FlutterApple IOSUnit TestingIos SdkObjective-CUikitSwiftuiIos FrameworksSwift (Programmiersprache)Kerndaten
Senior iOS developer with 8+ years of mobile development experience. I help product teams deliver features, modernise existing apps and resolve stability or performance problems.
HOW I CAN HELP
Feature development in Swift, SwiftUI and UIKit.
Legacy Objective-C/Swift code reviews, refactoring and migration.
MVVM architecture and maintainable asynchronous workflows.
Unit/UI tests and CI/CD to support reliable releases.
REST API integration, push notifications and biometric authentication.
RELEVANT EXPERIENCE
At eddress, I contributed to production iOS applications including Gorillas, working on Swift migration, architecture, testing, security and performance.
At the National Information Technology Board, I worked on the City Islamabad mobile application using Swift and Kotlin, REST APIs, Firebase Cloud Messaging and biometric authentication.
TECHNICAL SKILLS
iOS: Swift, SwiftUI, UIKit, Objective-C, Core Data, StoreKit.
Architecture and concurrency: MVVM, Combine, async/await, actors.
Quality and delivery: Unit testing, UI testing, GitLab CI/CD, Git, Jira, Agile/Scrum.
Integrations and security: REST/JSON, Firebase Cloud Messaging, SSL pinning, Touch ID, Face ID.
Additional experience: Kotlin/Android; familiarity with Flutter, React and Next.js.
WORKING TOGETHER
Based in Mainz, Germany. Open to freelance engagements, defined feature projects, codebase reviews and app modernisation.
English: fluent (C1). German: basic.
Send me your app's current challenge, technology stack and timeline so we can discuss scope and availability.
Erfahrung
Berufserfahrung5 - 10 Jahre
Freelancer seit2015
Sprachen
DeutschGrundkenntnisseEnglischverhandlungssicher
Projekthistorie
Contributed to production iOS applications, including the Gorillas app.
- Refactored legacy Objective-C code into Swift and developed maintainable iOS features.
- Worked with MVVM architecture and asynchronous workflows.
- Improved app performance, memory handling and launch behaviour.
- Implemented SSL pinning and biometric authentication.
- Developed unit/UI tests and contributed to GitLab CI/CD workflows.
Developed features for the City Islamabad mobile application on iOS and Android.
- Built native functionality using Swift and Kotlin.
- Integrated REST/JSON APIs and Firebase Cloud Messaging.
- Implemented biometric authentication.
- Connected mobile interfaces with backend services.
Supported iOS application development and releases.
- Built adaptive iPhone and iPad interfaces using Auto Layout.
- Worked with Grand Central Dispatch for background processing.
- Contributed to app maintenance, lifecycle handling and release preparation.