Courtesy of Declan.
If there are readers out there looking for a change in scenery in their jobs, First Derivatives (my employer), are looking for candidates. They have offices in the U.S., Ireland, U.K., and Australia.
If interested, I can refer you to HR if you send on your CV to me, and an email detailing what role you would like to fill and why to dfallon(@)firstderivatives.com
The available roles in summary are:
The company website is here. First Derivatives also made a big acquisition of KX Systems, so kdb+ experience is a bonus.