What is the meaning of the German academic title "Akad. Orat"? What would its international analogous be?
Via @mkennedy in a comment:
Nontenured, approximately assistant professor in the US system.
Expands out to Akademischer Oberrat.
Akademischer Oberrat is typically tenured (in the sense of a lifelong position), so this is something between assistant professor and associate professor in the US system.
If he or she also got their Habilitation they are Privadozent/Privatdozentin, which would then compare to associate professor.
The Wikipedia article cited by Bryan is misleading in this point, as "Akademischer Rat" is a position that could be granted temporarily ("auf Zeit") or permanently ("auf Lebenszeit"). However, as "Akademischer Oberrat" is generally a promotion from "Akademischer Rat" that one could only get after quite some time on the job, it is very unlikely for the temporary position (which is limited to 6 years).