Welcome back to the Wefugees Community and a happy new year for you!
As our experts are experienced especially in topics of immigration and residence (law), I would recommend you to consult a job-related institution, as the Berufsberatung at the Agentur für Arbeit, regarding your education and career planning. Please following the link for contact details and more information.
If I am not mistaken, absolving a study program might be essential in order to work in ship construction. But I am sure, that you will get more profound and helpful information at the “Berufsberatung”.
However, always feel free to get back to us with any further question regarding migration/residence-related issues in particular.
All the best,