That is a little broad.
What is your trade?
If you say mechanical/electrical work, that means nothing. What, if any, mechanical specialties are you qualified for? Are you a boilermaker, pipefitter, millwright, operating engineer, laborer, carpenter, or can you pass yourself off as one of those? Most of those jobs require proof of training.
If you are not an actual, trained electrician with the cards to prove it, don't even bother with the electrical part of the work.
In those trades, they don't really "staff", they hire. Mostly they are union shops like Day-Zimmerman. So the hiring goes through the union halls.