Earlier quoted context omitted.
>that most jobs in fact have no associated ad so what should he do then; go into google maps and drop off a resume at every nearby engineering firm?
No -- you might as well drop off a ream of paper at the recycler's, as that would cut out the middleman. It isn't difficult to meet people who have authority to hire people. Go to meetups/tech events/conferences in your area. Demonstrate value; ask people if they/their firms are hiring or if they know anyone who is. Some people who go to meetups/etc do not have hiring authority, but they often know who in their organ…
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