Job board sales for shipping jobs

I am looking for someone that can generate sales leads for my job board www.shoremarinejobs.com
This is a global job board that sells job adverts to shipping companies world wide.
You will need to contact companies via telephone or email marketing, carrying out research looking for companies that are wanting to post their job on the job board.
If you also have experience of website seo and content writing to improve the ranking of the job board this would be great