You have no chance to getting a job in any financial institution due to your record with theft, You can kiss goodbye any gobs in banks, retail stores and in general, anywhere where is a cash register. You would be automatically disqualified,
Secondly, no, it cannot be "expunged" unless you were a minor (17 or under). So if you were 18 or older, it would be forever in your record.
You paying restitution IS admission if guilt. You are screwed. Same thing with a speeding ticket, you do not need to go to court, and paying the fine is considered admission of guilt.