There are a variety of finance and administration roles within a school to suit people with many differenct skills and backgrounds. Below is just a sample of some of the types of roles:
Bursar
Finance Officer
Business Manager
Personal Assistant to the Headteacher
Secretary
Admin Officer/Clerk
Receptionist
Attendance Clerk/Secretary
Clerk to the Governors
Personnel/HR Administrator
Examinations Invigilator
Cover Supervisor
Extended Schools Coordinator
and many more - depending upon the school.
The type of skills that you might need, you can see on the attached document: