Lead each line with the outcome
Start with what improved: a shorter wait, a cleaner process, a happier client, a smoother launch. Then explain what you did. “Cut weekly report time from three hours to one by rebuilding the template” is easier to picture than “Responsible for weekly reporting.”
Use numbers you can stand behind
Counts, time saved, team size, budget handled, and volume are useful when they are accurate. If you do not have an exact figure, describe the scale honestly (“for a 40-person team”) rather than estimating a percentage you cannot explain in an interview.
Tailor the top third
Read the posting and underline the three problems the role is meant to solve. Make sure your summary and first few bullets speak directly to those problems. You do not need a new résumé for every application; you need the most relevant evidence near the top.
Ask a person to read it in thirty seconds
Hand it to someone and ask what job they think you want and what you are good at. If their answer does not match yours, adjust the order before adjusting the wording.