Example: "Hello, I'm a former employer of ABC and I'm very interested in the job of production manager that you have advertised. Writing a cover letter for a previous employer requires highlighting your existing knowledge, valuable skills, and showcasing how you've grown since leaving.We'll tell you why you might be asked to reapply for your current job and how you can succeed. Plus we've provided some sample cover letters to use. Learn how to craft an effective line cook cover letter that highlights your skills, experiences, and passion for the industry. Use specific examples to showcase your value to the company. Explain Your Interest in the New Position: Explain why you're interested in the internal position. A cover letter is a document that introduces you to a prospective employer. It was such a pleasure working with ABC Co. back in 2016. I've been a registered nurse for 10 years.