As many people already said here, prove yourself. Nova, C7, bac9 and Claira (forgive me if i spelled the name wrong) all made great mods. They didn't asked to be hired, they were asked.
While you are right about space combat, dogfights still take place in air combat. While everyone hopes for long distance engagement, AMRAAM's have been proven to be less reliable than thought so fighters are likely to meet at closer range.
What i meant with effective was the destructive side of the nuclear bomb. And yes i think they would be build and even used in space for the exact purpose you mentioned, to disable electronics.