Job, promotion:

~Astronaut, level 1
~Businessman, level 5
~Doctor, level 7
~Journalist, level 9
~Mechanic, level 10
~Model, level 11
~Policeman, level 12
~Scientist, level 2
~Soldier, level 14
~Veterinarian, level 17

~Fireman, level 8
~Programmer, level 13
~Spy, level 15
~Teacher, level 16

Job, random:
~Mayor, random when collecting income with Politician job
~Pop Star, collect income for Karaoke King job with pet with over 50 music stats

School:
~Science, complete 52+ Science lessons
~Sports, complete 77+ Sports lessons