Writer, Software Developer and Trainer.


Adrian Kosmaczewski is a writer, a software developer and a teacher. He is the author of three books about mobile software development, and has shipped mobile, web and desktop apps for iOS, Android, Mac OS X, Windows and Linux since 1996. Adrian holds a Master in Information Technology from the University of Liverpool.

When not coding or teaching, Adrian likes to spend time with his wife Claudia, his cat Max and his Olivetti Lettera 22 typewriter.


AKOSMA Training

Adrian is founder and trainer at AKOSMA Training, a company located in Schaffhausen, Switzerland, providing training services for software developers all over the world.


Adrian is a regular speaker at developer conferences since 2006.


Adrian has written many books about mobile application development and a novel since 2012.

Mobile JavaScript Application Development
Sencha Touch 2 Up and Running
Android for iOS Developers – A Step by Step Guide
Rogelio Suárez y la Vida Peligrosa


Adrian writes his mind regularly on Medium since 2016.

"Being A Developer After 40" – received more than half a million views and has been shared over six thousand times on social media, and has been translated to Russian, Hungarian, Czech, Portuguese, Spanish and French.


You can find more decks in my SpeakerDeck page.


Feel free to use this picture, courtesy of Gravatar.