English to Arabic Law/Patents Transport / Transportation / Shipping Job Title

I have no context as I am translating a list of jobs in a document about Equivalence of Certificates, but I found this site which explains about the job.

"Merchant Navy deck officers work in the shipping industry aboard container vessels, bulk carriers, tankers, cruise liners and ferries. They control a ship's navigation, communications, crew and cargo. They also look after people on passenger ships and take part in onboard social events".

http://careersadvice.direct.gov.uk/helpwithyourcareer/jobpro...