If you plan to work in Azerbaijan .you have to get work permit before coming Azerbaijan.Mostly Employer provide but some small companies do not know the process and face with big problem.
If we go step by step First you need any job offer from a registration company in Azerbaijan .With the registration document of company employer have to approach immigration and Foreign ministry for sending invitation letter to get employment visa .With that invitation letter employee approach to embassy of Azerbaijan in that city and get visa.
*** TRP after getting Visa
When you arrive Azerbaijan first you have to pass health test in clinic and after employer have to approach to immigration with company registration and clinic test for getting 1 year TRP
Fee of TRP for working 1200 AZN nearly 706$ ..