Kees Jan Koster

Software Architect & HIP trainer


Kees Jan Koster is software architect & HIP trainer. As a Java expert he specialises in designing and performance tuning large, distributed systems. As HIP trainer, Kees Jan is the driving force behind the nascent Human Interaction Protocol. With HIP, Kees Jan puts your team into high throughput, low latency mode.

Kees Jan speaks often and energetically about Java and about distributed systems in general. He likes to challenge the audience to ask questions and offer rebuttal to his ideas. Kees Jan previously gave presentations at JavaOne, Devoxx, TheServerSide Symposium, ScanDevConf, ejug and J-Fall.


Nov 2015 – Present
Kinly - Development Lead
Jan 2008 – Present
Professional Speaker - Professional Speaker
Dec 2014 – Oct 2015
Turnitin - Technical Architect
Jul 2008 – Dec 2014
Java-monitor - Owner and CTO
Jun 2014 – Nov 2014
Lebara Mobile - Java Developer and Technical Lead
Sep 2014 – Sep 2014
Chess iX - Java Developer
Jun 2013 – Jun 2014
Dutch Domotics - Solution Architect
Mar 2014 – May 2014
Swisscom - Technical Project Lead
Aug 2012 – May 2014
NGT International - Solution Architect and Technical Project Lead
Mar 2014 – Mar 2014
Bax-shop - Solution Architect