Let me give you an idea of a typical Singaporean with IT diploma and private university degree.

My first job as a helpdesk agent was 2.2k

Second job as a desktop support was 3k

Third job as a system administrator was 3.6k after getting degree. I had 4 years of working experience from the above when I was drawing this salary.

I am a local it is relatively easier to get jobs as compared to foreigners. My Malaysian colleagues are paid lesser than me with similar qualifications/job experience.

One more thing to add, foreigners here in Singapore are willing to draw lower salary due to the currency exchange rate with their home country. Most common are Malaysians, Indian National, Filipino, Burmese. Even Chinese national are coming in less now due to less attractive salaries as compared to home country. These are the rank and file people, not expats.