Most cover letters are filler: three paragraphs of enthusiasm that restate the resume and say nothing. A good cover letter is short, specific, and does one job: connect your real experience to what this role actually needs. Here is a structure that works, and the honesty rule that keeps it credible.
Open with why this role, not how excited you are
Skip "I am writing to express my interest." Open with a sentence that shows you understood the role and have something specific to offer it. One concrete line about the problem the team is solving, paired with the relevant thing you have actually done, beats a paragraph of generic enthusiasm.
Make the middle a short bridge, not a resume rerun
The body is two short paragraphs at most. Pick the two or three requirements that matter most for this role and connect each to a real, specific example from your experience. You are building a bridge between the posting and your history, not listing everything you have ever done. If it is already on your resume word for word, it does not need to be here too.
Keep it honest and keep it short
- Every claim should map to something real you can speak to in an interview.
- One full page is too long. Aim for under 250 words.
- Cut every sentence that would be true of any candidate for any job.
- Name the company and the role specifically. A letter that could be sent anywhere reads like it was.
Close with a clear, low-pressure ask
End by saying you would welcome the chance to talk, and then stop. No flattery, no restating the whole letter. Confidence is brief.
On Pro, Resumiz generates a cover letter from the same analysis it uses to tailor your resume, so it pulls from your real experience and the specific posting, not a generic template. It will not claim anything your resume does not support.