Siu job title descriptions?

Ive noticed siu has different job descriptions, ie qee, qedw, egrm, qep, aec, ol what do these mean and whats the purpose? Thanks in advance

i’ve seen a few of those of late, figured it was mispelled or something. I’ve heard they are doing away with chief as it’s racist or something? part of the ‘reset’ or something?

I am pretty sure QEE is QMED/Electrician, QEP is QMED/Pumpman, and OL is Oiler.