At, in & related expressions
1.
When I worked AT XYZ (department/devision/etc), the salary was better than it is now.
Q: Does using "In" instead of "at" also work in this case?
(Using "for" would also be natural, though)
2.
When I was AT?IN? XYZ, the salary….
Q: Can this sentence show the similar nuance to the first one or does this simply mean "I was physically there" in any cases?
Thank you