Senior iOS Software Engineer
Cologne, Germany
Clients and Projects
- trivago
- Vodafone
- adidas
- Fielmann
- Mobile.de
- DFL Digital Sports (Bundesliga)
- Axel Springer
Skills
- Swift
- SwiftUI
- UIKit
- Objective-C
- Xcode
- Core Data
- Swift Package Manager (SPM)
- Xcode Cloud
- Git
- GitHub
- REST
- Scrum
- Kanban
- Combine
Side Projects
with other technologies
- Menu Generator
- Elixir/Phoenix
- SvelteKit
- Python
- 2D RPG Game
- Godot
- GDScript
- QR-Code Wallet App
- Swift
- SwiftUI
- CoreData
- Inventory App
- Swift
- SwiftUI
- CoreData
- Firebase
- Waste Collection Calendar App
- Swift
- SwiftUI
- Data Science
- Firebase
Latest Blog Posts
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- Product
- Data
- Experimentation
- EN
Why I like A/B tests and why most teams shouldn't use them
This article is about how to make better data-driven decisions. A/B tests are one of the strongest tools for that, and one of the easiest to misuse. Following the example of a single checkout button: what a real test is, what separates signal from noise, when it fits, and how to run one you can trust.
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- Swift
- Android
- Cross-Platform
- EN
Swift for Android: A First Glance
Swift 6.3 ships an official Android SDK. A first look at the swift-java bridge, the JNI tooling, the build flow, and what is realistic to use today.
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- Swift
- EN
Sorting in Swift: From Introsort to Timsort
How a technical interview question about sorting a trillion names sent me down the rabbit hole of Swift's standard library sort implementation.