Yes but based on how you come across in the interview during those 30 seconds.
Although I guess your physical appearance might have something to do with it to some extent, which there isn't a lot you can do about, but I've seen ugly people with jobs.
( Moon Girl Technologies horrendous beanbag, Mon 11 May 2009, 22:57, archived)

It's a nice bit of social partitioning for sure, especially now as there are no qualifications below a Ph.D that actually hold any weight.

( The Mock TurtIe ™ --- Thinks you are a cunt, on, Mon 11 May 2009, 23:01, archived)

The one I just applied for
was only asking for a grade C in GCSE English, and one other subject.

I reckon this 30 seconds thing is actually just a lot of management training twaddle. They talk a lot of high-octane shit, that lot.
( Moon Girl Technologies horrendous beanbag, Mon 11 May 2009, 23:02, archived)

Depends on the job, I'm pretty sure.
Also, there are plenty of non-academic qualifications that are of value.
( MooCow_Byter, Mon 11 May 2009, 23:44, archived)