That´s how I spent most of my workday. It´s like solving little puzzles the whole day... However, in a small studio, there are plenty of jobs I have to fulfill besides rigging.
Scripting
Scripting goes hand in hand with rigging most of the time, as I use my self-written Modular Rigging System for most rigs. And I am responsible, for keeping the Studio Pipeline running.
Animation
I started as an animator in the industry over 10 years ago. That helps a lot for my rigging work! Because, if you are forced to animate your own rigs, they automatically get more animator friendly.