Applying for a job with Maricopa County at jobs.maricopa. Gov is a simple online process.From the View Job Posting Details page, select Apply. 5. Fill out all the required fields in the New User. Registration page, and click Register. Everything you need to apply to jobs, including a resume and cover letter. Enter the Job Title for which you are submitting an application. 0 of 50 max characters. Learn how to prepare a dynamic resume and cover letter to set you on the right track to getting your dream job. After submitting an application, try to physically meet the manager at a branch.