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Working from home
Working from home
  • Kleinanzeigen
  • Germany


@technology-ebay-de @AptumTek
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  • Working in Software Engineering since 2004, with focus on iOS since 2013
  • Had different roles over the years from backend/frontend to DevOps to iOS engineer
  • Living north of Munich with my wife and two daughters, working remotely for Kleinanzeigen (Berlin) as an iOS Developer

I see myself as a generalist, happy to touch other technologies than what I was hired for. Often launching Android Studio, comparing the Android app to the iOS app in my current job to debug something, or to check with Charles Proxy how and when they make a request to the backend to ensure the two different platforms behave the same.

Recent Open Source Contributions


+++ means I got a lot in touch with that technology while being in this position, does not mean I'm an expert in it.

05/2014 - today: Senior iOS Developer @ Kleinanzeigen (remote since 2016)

+++ Swift
++  Jenkins, Objective-C, Ruby
+   GitHub Actions, Go, Java, Groovy, TypeScript

11/2013 - 04/2014: Senior Software Engineer @ metaquark GmbH

+++ Objective-C, Ruby
++  Bamboo, Capistrano
+   Puppet

01/2012 - 10/2013: Senior Software Engieer @ XING

+++ Objective-C, Perl, Ruby
++  Capistrano, Chef, Jenkins
+   VMware

04/2011 - 12/2011: Software Consultant @ ConSol MENA

+++ ColdFusion, Perl
++  Microsoft SQL Server

07/2009 - 03/2011: Senior Software Engineer @ XING

+++ MySQL, Perl, Ruby
++  German, Jenkins
+   RabbitMQ

09/2004 - 06/2009: Software Consultant @ ConSol Software GmbH

+++ Perl
++  Oracle

Side Projects


  • simctl - Ruby interface to xcrun simctl (used by fastlane) - not very actively maintained, at least no new features are being added currently.
  • Less Paper - Some iOS client for paperless-ngx


Between 05/2017 and 07/2018 I've built and maintained the iOS Poloniex App (and Android App) as my own product in my personal App Store Account. Was finally acquired by Poloniex in 07/2018. Also started the Android App and implemented the first few screens, until I finally asked a friend for help, who knows a lot more about Android than I do.


  1. simctl simctl Public

    Ruby interface to xcrun simctl

    Ruby 104 19

  2. dotfiles dotfiles Public

    Personal dotfiles

    Shell 10 1