Anyone ever worked for BKA content?

I took the test with BKA content several weeks ago and passed it, but never wrote or submitted the paper they requested because I’ve been hesitant about doing so. If anyone has ever done it, how much were you making and how much of a commitment was it? And are there any similar and possibly better jobs available! I already work full time in an office setting, so I don’t want too much on my plate, but I’d also like to have some extra cash!