Sep 18, 2022

About me


Hi, I'm Wolf

I'm a Berlin based software engineer with 10+ years of professional experience. Passionate about building mobile applications, focusing on Android, Kotlin Multiplatform and open source.

My current role is open source developer working on K-9 Mail/Thunderbird for Android.

Tech stack

  • Android: Kotlin, Kotlin Multiplatform Mobile, Jetpack Compose, Java, Flow, Ktor Client, Retrofit, Koin, Gradle, SQL, SQLCipher, Realm
  • iOS: Swift, Swift UI, Swift Package Manager, Kotlin Multiplatform Mobile, Kotlin Native, CoreData
  • Web: React, JavaScript, HTML5, CSS3, Kotlin JS
  • Backend: Kotlin, Java, REST, GraphQL, Ktor Server, MongoDB, Docker, Kubernetes
  • Technology: OAuth 2, HL7 FHIR, cryptography, E2E encryption, hybrid encryption
  • Tools: Jira, Confluence, Trello, Git, GitHub Actions, Jenkins, Miro, Sketch
  • Testing: TDD, Junit, Jacoco, SonarCloud, Detekt, Ktlint, SwiftLint, page object pattern
  • Concept: OOP, Reactive, Solid, Functional Programming, Scrum, Kanban, Git Flow


  • German: native
  • English: business fluent