Go to the Recruitment and Selection link of Human Resources, select the appropriate link to our Career Centers to apply for any open Pima County position. To resign your commission, you must submit a signed Resignation Letter to the Secretary of State's office.Learn how to write a professional resignation letter with our step-by-step guide, easy to use templates and helpful tips. Professional resignation letter examples for different reasons. Free templates and writing guide to resign on a positive note without feeling awkward. Responsibility to fill out the paperwork to get reimbursed. Electrician (Commercial). Salt River Pima-Maricopa Indian Community. Â .