Can I just submit my resume and a cover letter to apply for a job? No. You must submit a completed application for each position you are interested in.The purpose of creating a cover letter is to introduce yourself to your future employer in both a memorable and positive way. You must submit a completed application for each position you are interested in. We can help you discover rewarding career paths, find a job, write your resume and cover letters and even get ready for interviews. Sample Job Application. A cover letter outlining your interest in the position and a resume are also required. A cover letter outlining your interest in the position and a resume are also required. We will accept applications through ERAS for the 2024-2025 Match season between September 28th thru October 31st, 2024. The Contra Costa County Office of Education is a unique agency.