Our understanding of Satan and his history comes mainly from the middle ages, and especially later writers such as Milton and Dante, he hardly appears in the bible at all. The association with the snake in Eden is made much later; it was just a common snake to start with. In the later books of Moses God sends 'A' Satan, presumably meaning there are more of them, to deliver the plagues of Egypt, so he/they are clearly still doing as he/they are told at that stage. ( A satan, is just a lower case noun, meaning roughly, 'opponent'. Later King David is said to be one.) In the book of Job, Satan is still Gods drinking buddy who helps him torture Job for a bet.

It is only in the new Testament that he starts to show signs of rebellion, but even there, it is not suggested that he lives in, or is the ruler of hell. The changing face of Satan is one of the best proofs of how inconsistent and extensively rewritten the bible really is.