It's certainly possible to build a decker who also reasonably capable combatant, but really comes down to your image of the character and how you want to play.
The decking rules are reasonably complex, and doing decking right is deep skill commitment (Computers, Hacking, Cyber-combat, Electronic Warfare, Hardware, and Software) having the added distraction of combat is probably not going to be super helpful.
So review the rules for bricking things, it's very possible to build a character who can brick tech, very effectively. Now keep in mind if you start bricking tech often invites same from the GM.
So things to keep in mind, there is plenty of things to do in decking, it simply comes down to what interests you in the concept.