Here’s a list of my public talks to date:

• June 24, 2013: Developer Week, Nuremberg: Produktives Eventhandling (Reactive Extensions)
• July 16, 2014: Developer Week, Nuremberg: Cross-Platform Mobile mit C#
• October 21, 2014: Advanced Developers Conference X, Mannheim: Mobile mit Xamarin
• November 4, 2014: Advanced Developers Conference X, Vienna: Mobile mit Xamarin
• February 10, 2015: Xamarin User Group, Frankfurt: Introduction to Xamarin
• March 11, 2015: ALM Days, Düsseldorf: Mobile in the Enterprise
• May 20, 2015: .NET User Group, Frankfurt: Cross-Platform Mobile mit C#
• September 24, 2015: Zühlke Days, Stuttgart: Mobile App Security
• October 15, 2015: Mobile .NET User Group, Berlin: Mobile App Security
• December 9, 2015: GUI & Design Conference, Berlin: Cross-Platform und trotzdem nativ
• January 20, 2016: Xamarin User Group, Frankfurt: Mobile App Security
• March 10, 2016: Frankfurter Entwicklertag, Frankfurt: Write once, run everywhere? Cross-Platform Mobile mit .NET
• April 28, 2016: Xamarin Evolve, Orlando, Florida: Is your app secure?
• June 21, 2016: Developer Week, Nuremberg: Ist Ihre App sicher?
• June 21, 2016: Developer Week, Nuremberg: UX Panel: Universal vs. Native vs. Web
• June 29, 2016: .NET User Group, Koblenz: Cross-Platform Mobile mit C#
• October 24, 2016: Advanced Developers Conference, Mannheim: Actio != Reactio: Besseres Eventhandling mit Reactive Extensions
• October 29, 2016: Xamarin Dev Days, Munich: Introduction to Xamarin
• November 18, 2016: Xamarin Dev Days, Berlin: Introduction to Xamarin
• December 7, 2016: Microsoft Technical Summit, Darmstadt: Xamarin, aber sicher!
• May 20, 2017: Xamarin Dev Days, Graz: Introduction to Xamarin
• Oktober 6, 2017: Expert Day for Xamarin, Cologne: Is your app secure?
• October 8, 2017: Macoun, Frankfurt: Der mobile Grabenkampf (with @codePrincess)
• December 13, 2017: GUI & Design, Berlin: Native UIs und trotzdem Cross-Platform
• February 8, 2018: Code Days, Munich: Ist Ihre App sicher?
• April 19, 2018: Xamarin Cologne User Group: .NET Code Sharing
• May 30, 2018: Xamarin User Group, Frankfurt: .NET Code Sharing
• June 21, 2018: Zuhlke Meetup, Sofia: .NET Code Sharing
• June 25, 2018: Developer Week, Nuremberg: .NET Code Sharing
• October 19, 2018: Expert Day for Xamarin, Cologne: .NET Code Sharing

Planned talks:

• May 22, 2019: Advanced Developers Conference, Regensburg: .NET Code Sharing
• June 14, 2019: Expert Day for Xamarin, Munich
• June 24, 2019: Developer Week, Nuremberg: Die Lage zum Thema Xamarin