PSA is a great company. very forgiving and i have yet to see anyone get fired. Ave. service of both office and non office base staff is around 9-11 years.
Base is low but its made up thru its bonus and ad-hoc
NTUC gift-aways.
To break down the bonus for ya
a. AWS
b. EBI (Company Bonus)
c. PI (Performance Incentive)
Unless you are under performance improvement plan or serving notice, [a] and [b] is pow jiak.
[c] bonus can be 0.25 - 5.5 which is pegged to your appraisal grade (C,C+,B,B+ and A) in additional there is also an internal ranking so you and me could be "B" performers but i am a higher "B" thus qualify for a slightly higher bonus multiplier.
To put it all together - assume you are a Manager drawing 8k per month.
Qualified for a "B" grade (2mths) and the company met most of its KPIs and will pay 2.15 mths
Hence, (8000 * 12) + (8000) + (8000 * 2.15) + (8000 * 2) = 137,200 or 11,400 per month
Sounds good? Maybe! but be warned that this may work againsts you if your next employer tries to lowball you using your BASE salary. Also if you somehow ended up with a C grade then its a loss of around 2-1.5 months.. again depending on the business.
Good luck!