Moodle integration

We have developed a web site with joomla that proposals to our clients different services.

One service we are now realising is to integrate our joomla site with our moodle site. Our joomla site acts as a LMS Portal. Note that we previously use joomdle and that our moodle site is already set up. However there's more to do.

We are seeking an expert in Joomla-Moodle to accomplish this:

a) Implementing a multi-tenant configuration in Moodle

i) We will have about 50 clients that will use our services. Each has some hundreds or thousands of employees.

ii) Right now our Joomla site has already a multi-tenant configuration. This means that each of our 50 clients have its own "look and feel" (its logo, colors and so on).

iii) We want to implement the same thing in moodle. We read that the best (and simplest) way to implement a multi-tenant configuration in Moodle would be by assigning each client a "cohort".

iv) The goal is that each client will only see his cohort's stuff, never be able to do.

Desired Skills are MySQL Administration, HTML, Joomla!, PHP, Moodle