Interestingly enough Blue Eagle, when I was with SQ there were a few Australians in residence as well, mostly training Captains. The only others I knew were on loan from Qantas (F/O's mostly), superb operators all. Recall flying into SIN many times in the early 90's when all you could notice on the RT were voices from downunder. SQ must have hired a lot.
Recall meeting one of my F/O's (now senior Captain) from SQ in 1996 in ZRH, and he mentioned that those from OZ did not stay all that long. I wonder why?