Guide
Resume guidance
How to tailor a shorter resume to a single opening without rewriting it each time.
Read the posting twice
Mark the three things the role clearly needs most. Your resume should answer those before anything else.
Mirror, don't copy
Use the employer's terms where they honestly describe your work; this helps both people and screening software.
One page when possible
Early and mid-career resumes are usually strongest on one page. Every line should earn its place.