First you have to pass the basic screen. First, we look at your form particulars. If that's OK, we look at the cover letter. Then, we may or may not look at the CV; 50/50, depends on that particular HR. After that, we'll call you to clarify any additional details.
Then usually we interview you.
Either before or during the interview we will 100% try to call at least one reference. I cannot stress how important it is that the reference knows who the hell you are. Literally 70% of the time I get references going "... Who?" This seems like a basic concept but come on, guys.
References do, in fact, make or break our decision sometimes. If you were stupid enough to put a reference who doesn't know you for instance, that's an instant no from me. If your academic qualifications were so-so, but you worked during your studies, and your reference praised your performance, then it's a big bonus and I'll look the other way with regards to academics.
In Public Service your increments will be near-constant in Ministries. In
SBs, it can stall if the SB in question doesn't perform well. The rate of increment depends on your performance at work. However, there is a "glass ceiling" that you will hit, based off the following:
1. Diploma only, no degree.
2. Pass degree only, no honours.
3. Honours only, no (relevant) Masters.
The ceiling doesn't matter if you are a Masters/PhD holder in relevant field. But prior to that, you can and will be stalled.
HOWEVER, case 3 is rare, because we only take Masters into account if you're supposed to be considered for a Directorial-level position or something similar.