I make my living using the computer: building, configuring, securing, reporting, breaking, synthesizing, connecting, creating.
It's a common trade these days, but one of great variety. Nobody can know it all, but you'd better be flexible and able to learn what you need to for today in order to keep the skills relevant.
It's a field that is rife with atheism, agnostics, pragmatists, and practical people. One thing you can bank on, is that something always goes wrong with the computer in the process. Most of my professional life has been spent waiting for some computer to finish a task, fixing one that has gone wonky, or finding another way of doing something that Can't Be Done.
Mostly, I've been successful. My secret? Jesus knows a lot more about computers than I do. Yup, when I remember to pray when things go wrong with this most scientific of devices, the breakthrough is usually right around the corner.