No. You must submit a separate online application for each recruitment. 4. What if I do not have a computer?Contra Costa County only accepts online applications. When viewing a job posting for a currently open examination, you can select the option that says 'Apply'. Need help drafting a job offer letter? Each case is given individual consideration, based on job relatedness. A cover letter of 300 words or less, explaining why you are the ideal candidate for the students at Contra Costa College. Found the perfect candidate to hire? We've got 7 types of job offer letter templates to choose from that'll help you seal the deal. A sample letter offering a job contingent upon the results of a background check or other criteria.