Applicants for Staff and Administrator positions are required to submit a letter of interest. Applications are accepted for positions currently open for recruitment.Pima County Employment Application. Please read this information before completing the application. Use our online system to submit an application form. You must upload a current resume or curriculum vita with your application. How does the application process work? How do I know what employment opportunities exist in Pima County government? Federal jobs take a while to process. I suggest following up with the sender of the letter.