I checked couple of episodes and with a help of Futurama timeline I provide you this list of Hermes' bureaucracy grades:
Limbo career -2980~2980-2990
in Mom's Friendly Robot Company as inspector #5 in Tijuana (although records are mysteriously disappeared )
Begins to work as a bureaucrat of Planet Express.36 ~2990
Unemployed for 2 years.
Back to Planet Express with promoted grade.34
Demoted back to 36 at some point in 3007-301036
There might be mistakes and inaccuracies...
You may now talk about bureaucrats and their mighty grades, while I'm still in line to wait my birth certificate.