David Moten has been programming in Java since 2001, largely with the Australian government. He learned Scala in 2007, which made him strongly appreciate the functional style, and he was delighted to discover RxJava when he went looking for functional libraries for Java in early 2014. He loves a bit of math when it turns up, and he is enjoying learning the tricks of the concurrent programming trade by contributing to the RxJava project on GitHub.