Help me find out what these English abbreviations mean~

This should be a recruitment notice for a financial staff member.

1. Negotiable: negotiable, that is, salary can be discussed face to face.

2. exp only: experienced only. Only those with this work experience are recruited.

3. imm: immediately. It will be opened soon.

4. wknds : weekends weekends

5, w/: with

6, req: require

7, PT: pay time working hours

8. sched: scheduled Arrange time

So this recruitment notice is for an accountant

The company is about to open in a large medical building and is looking for someone with corresponding work experience: Yes Experience doing payroll, invoicing and applying BookkeeperPro or similar software. Flexible working system, sometimes need to work overtime on weekends. Competitive salary (negotiable) plus full benefits. If interested, call 555-0011 to find Sara.