Office job (4)
I believe the answer is:
post
I believe this is a double definition.
'office' is the first definition.
(both can mean a position or job)
'job' is the second definition.
(post is a kind of job)
(Other definitions for post that I've seen before include "Publicly display; send" , "Mail; wooden stake" , "Send; job" , "Contribute online" , "Letters and parcels; job" .)