Marine mechanic

i have a class 4 motor engineers ticket but i trying to find a shore based job. Everybody posting jobs is looking for a qualified marine mechanic or a journeyman. They wont even consider a marine engineer. Can anybody tell me how i can cross over and get a mechanics ticket without going through the apprenticeship program. I have about 10 yrs experience as an engineer, surely that counts for something.

What is a class 4 ticket? Never heard of a mechanics ticket either.

Outside the US, the third engineer is called the fourth engineer.