Grade 6 is the entry level for fresh grads, the job ads on career@gov still typically put a requirement for 2-3 years of relevant experience.

I’ve previously had 11 months of experience at the same stat board as an temporary assistant executive (Grade 4, for diploma holders) which was outsourced by a 3rd party recruitment agency.

And fyi, unless you come in middle management, they typically use a formula to compute your salary. I had only indicated 3,600 in the career@gov application as my previously drawing salary was 2,800.