The suggested total salary of $S 150000 pa less tax is a total lie so be warned. As for Profit Sharing then don't bank on it and you need to know that SQ will change your salary downwards at the first hint of any excuse. I bet the Asian Bird Flu is the next reason for large paycuts in the SQ Empire!!!!!
Also remember the Singapore Monetary Authority is encouraging the Singapore Dollar to devalue in order to keep competitive with other currencies in the region. Take that into consideration!!!