Refining and setting up the site on 1C-Bitrix

Colleagues, good afternoon!

There is a site on 1C Beatrix. We need to do a periodic block of work:
Setting up menu items and their nesting, structure-editing information blocks. Set up their location on the siteWork by the structure of the catalog: changing the levels of nesting, displaying goods on the main, editing templatesDeconnectment of individual elements of the siteContract is offered hourly.
Wishes to the performer:
Experience with 1C-Bitrix (there are examples of works)PHP/JS/Verst Email, discuss