Answer:
"View All" Profile settings.
Manual Sharing
Explanation:
As the user who already owns a job shall grant access in that case he shall be able to "view all" profile settings which shall make the user view all the details of the other jobs available.
In order to grant any access one shall be able to modify some settings for that firstly settings view access shall be available.
Further also there shall be an option of manual sharing, which shall make the user share the details of job record manually rather than sharing the entire settings and data.