Salary is dependent on whether you are a local/private grad
On top of that, your honours classification plays a part (heard first class gets paid a lot more)
“AWS” is factored in your salary.
Bonus depends on your performance.

Yes, there is a vast discrepancy between the salary in ST, even if your degree is not related and you are a first-class fresh with a non-tech background, you are still paid a lot higher than another fresher with tech degree (without first-class/ or private U).