Most of the kitchen crew, as well as the stewards and waiters, had cabins on E Deck on the port side, along the long working alleyway known as Scotland Road. You can see their cabins on this plan of E Deck. The a la carte restaurant staff had their quarters furthest aft on E Deck, and there are stories (I am not sure how credible, but the story appears in many books) that most of the restaurant staff were locked in their cabins during the sinking. In general the kitchen crew had cabins closer amidships and the stewards were further forward. There was something of a hierarchy in accommodations, with more senior staff occupying smaller cabins. The chef had his own cabin, some cooks shared cabins for four, and the more general cooks had cabins for as many as 12.
For the First Class galley, kitchen staff could climb a staircase located amidships that would take them directly from their quarters to the galley. The Third Class galley was on F Deck but most Third Class kitchen staff had their accommodations close by on F Deck.
There were only 23 women among the crew. Most were stewardesses. Two of the a la carte restaurant staff were women (IIRC they were cashiers) and the Turkish Bath masseuses also numbered among the 23. 21 of the 23 women survived.
I agree with Athlen's total of 23 women working on board, but the total for the survivors was 20. The three victims were Catherine Wallis (3rd Class Matron), Katherine Walsh and Lucy Snape (2nd Class stewardesses).