took you long enough.
I have asked a friend I know who works in Rayong as a QA/Purchasing Manager for Electrolux to have a chat with you re possible employment and career moves.
I have also contacted Asimar - Ship builders in Samutprakarn - where I have some friends working. They have vacancies for 5 Engineers, I'm sure I can get you into that place - salary is a bit low but great experience.
Also CUEL - Offshore platform construction in Chonburi, they are harder to get into will take a while, they will like your experience with Italthai.