The Seattle Java User's Group kicks off 2015 with a talk on Java and Performance. I've got a bunch of great talks lined up for the next few months - possibly Olivier Gaudin of SonarQube, Will Iverson, Ted Neward, etc.
LinuxFest Northwest is in April as usual.
No Fluff Just Stuff looks to be doing a stint in May.
DockerCon is in June
OSCON is in July.
Gonna be a busy few months :)