[juli1pb]

1. apply for the job 2. mention your requirements to the recruiter 3. if ok, pass the interview 4. if you pass, get the job, otherwise, back in 1.

What you think is probably not important: at the end of the day, what matters is what your employer thinks. If they think you need or deserve a private office, they will give you - otherwise, you might need to change your expectations.

Note: as noted, universities often offers private office. I had such a job. Nice but my salary was a fourth of what I have today. So if you do not want to make compromise on your office space, you might to do some on your compensation.