Payments type depends on our employer it can be bitcoin or local currency.
Regarding Visa sponsorship it also depends on your employer.
Everyone should visit the site and search for a job. Once you click on "Apply now" you will see all the details you need about the job.
You yourself not providing any jobs and it is like a freelance website, thats what I understood from your website.
The design is a little ambigous and search function is not working properly. Also there is no details about how payments are given and what would be the rates per work. Would like to know more about social media jobs in my country.
Search function is really friendly. all you need to put is "position+location" if you want an specific result. sample PHP India or Forex UAE.
If you click on "apply now" you will see the complete jobs details may include the salary range or rate but if not included it must be depends on interview.