Mention the exact job opening and number (if applicable) in the first paragraph. • Give examples of how you have used or expanded your skills.On-Line Application Signature Page – All employees must complete an on-line Collin County. If qualified for more than one teaching position, apply for each posting. How do I apply for a job with Collin County? Current employees must use their PeopleSoft login and apply through their Self Service homepage. This is a sample cover letter. Download the cover letter template (compatible with Google Docs and Word Online) or see below for an email sample. Ready to engineer the future with us? Explore our open roles, find a great fit for your skills, and let's create next-gen technologies, together.