is it possible to import permissions and level via CSV Import?

Roles are not csv supported afaik

You can bundle it in your sandbox or staging account then migrate to production. Also you can use suite development framework to migrate roles

No, this is not possible.

thanks guys. how about mass update? It looks like i can only update one permission and level at a time

@User2351 - It is really clunky but the work around is to create an "other record" field for the Role record. Create a List with different Departments where you would segregate out Roles deeper. Ex. IT Dept, AR Dept, AP Dept, Receiving, Shipping, Procurement, etc. Then assign each Role to the values on the List you created. Then create a Saved Mass Update and that "other record" field you created will be visible on the Mass Update to filter and criteria specific users in bulk per dept if that makes sense.