See Raid Roster here:
Sign-ups are posted every Tuesday of each week. Please sign-up if you'd like to join us! Beginners and vets both welcome.
If you are interested in being a sub, just keep an eye out in the #GW2-General chat in the Discord. I'll send out a ping if I need a fill.
Contact @Pupp on the forums or on Discord (Pupp#1331) if you have any questions.