Honestly though, I'm curious as to what the process for becoming a certified ISU judge is? Can anyone just study up and get certified? I've always wondered, and I've googled competition judges to try to find their credentials and I can never find anything.
To become an ISU judge, a candidate has to be nominated by their federation to attend seminars and take written and practical exams.
They have to be "eligible persons," although the restrictions that make someone "professional" or or "ineligible" are a lot less strict than 30+ years ago. And they have to be at least 24 but not yet 50 years old to get the first appointment.
They have to have judged national competitions in their home countries; if I understand the rulebook correctly there are trial judging opportunities for potential international judges who didn't come up through a robust national program at home.
There are two levels of appointments: International Judge and ISU Judge. Judges must have ISU appointments to judge at Olympics, ISU events (does that mean the four ISU championships?), and the Olympic qualifying competition. International Judges could judge any other international events.
Different federations will have different criteria for deciding who to support for international appointments, and international assignments once they have the appointments. It will vary greatly depending on how big the federation is and how long it's been around, whether there are plenty of former competitors in competition with each other for those opportunities, or whether a brand new federation will have to fined anyone who is willing to put in the time and travel to learn, in many cases at their own expense.
(Don't forget that judging is a volunteer activity. )
What it takes to be a national judge, which would be necessary before becoming an international one, would also vary from federation to federation.
Posters above have mentioned the US system: see
http://usfigureskating.org/story?id=89433. You don't have to be a skater to become a judge in the US, although it takes longer for a non-skater to learn what you need to know. But non-skaters are not going to become national judges in the US much less get recommended for international appointments.
all technical specailists are former skaters or have skated before either by low level or on elite level
contrary a coach can be certified even he hasn't skated himself all his life.
I think you mean a judge can be certified even he hasn't skated himself?