Merchant Navy: Eligibility Criteria, Entrance Examinations, Courses, Top Colleges and Job Profile A career in the Merchant Navy will give you an opportunity to travel the world while living an adventurous sea life. Merchant navy is completely different from the Navy in terms of its operations. Unlike Navy, Merchant Navy offers commercial services and is regarded as the backbone of international trade. A career in merchant navy is rewarding in monetary terms and offers maximum job satisfaction. Here are all the necessary details required to join the glamorous career in merchant navy.Mer..