Ocean crew, A master's certificate, looking for a job on land, which jobs are suitable for me? Thank you for your advice.

I used to work in a shipping company. The management of ship certificates on the ground can be considered. Our unit is the second mate. As far as I know, many of them are old ghosts and captains, stewards and first officers. They have experience and know the system. In addition, it seems that COSCO's ground maintenance can only be done by Daguan and Laogui.