computer expert
computer guru

Actually writing such a program, computer experts note, would not be all that difficult.

Some of my patients have been lawyers and computer experts.

I had to turn to my husband (the computer expert) for help.

One does not need to be a computer expert to follow the way he goes about it.

I've found out that most computer experts aren't very expert.

"But it can't hurt to have a computer expert come in and talk to you."

That would do for a description of a computer expert.

Finally the computer expert and his crew get to the bottom of things.

I'm not exactly up on the technology but I know the computer experts can get a lot out of these things.