Applicants for Staff and Administrator positions are required to submit a letter of interest. Applications are accepted for positions currently open for recruitment.MST on the closing date. This guide describes how to apply for jobs using the Career Page web site. The process consists of the following steps: Cover letters and résumés are two of the most important documents you need to successfully complete your job search. After you click on the link Pima County Employment Opportunities, the screen lists all the positions currently available. You can sign up for Job Interest Cards through the organization's web site so that you are notified when jobs become available. The admission application will ask what program of study you intend to pursue. If you are unsure, Career Coach and these program of study resources can help.