How to Write Resume Achievements with Metrics in English (Examples by Field)
Move from responsible for to measurable impact the ATS and recruiters reward.
6 min read
When you apply from Latin America to a remote or US-based role, your resume competes against an ATS first and a recruiter second —and that recruiter spends only seconds per profile. Neither is convinced by a list of responsibilities. Both are convinced by results they can measure.
The gap between a resume that gets skipped and one that moves forward almost always sits on the Impact axis: what you achieved, how much, and how. This guide gives you the exact formula, the action verbs that land in English, and the metrics that matter in each field —with before—after examples you can adapt today.
Why duties do not sell and achievements do
Phrases like responsible for managing a team or in charge of reports describe your job title, not your value. Anyone with that title could have written the same line. The recruiter already knows what an analyst or a manager does —what they do not know is what changed because you were there.
The ATS rewards impact indirectly too: quantified achievements naturally fold in the keywords and tools the system scans for, while giving context that helps the human read that follows. A well-written achievement works twice —it clears the filter and it convinces the person.
- Duty (weak): Responsible for improving the onboarding process.
- Achievement (strong): Redesigned onboarding, cutting new-hire ramp time from 6 weeks to 3.
The X-Y-Z formula for every achievement
Popularized by Google, the X-Y-Z formula packs the idea into one line: Accomplished X, as measured by Y, by doing Z. In plain terms —what you achieved, measured by which metric, by doing what.
Turn it into a template you can reuse in every bullet: past-tense action verb + what you achieved + metric + how you did it. You will not always have all three parts, but the more you complete, the stronger it reads.
- Template: Action verb + what you achieved + metric + how.
- Example: Reduced API latency by 40 percent (p95) by adding a Redis cache layer.
- Example: Grew qualified leads by 65 percent in two quarters through a revamped SEO strategy.
Strong action verbs in English
Start every bullet with a past-tense verb that signals action and outcome. Avoid passive phrasing and repeating the same verb. Group them by intent so you can pick the right one for what you want to highlight:
- Leadership: Led, Directed, Spearheaded, Coordinated, Mentored.
- Achievement: Achieved, Delivered, Drove, Exceeded, Secured.
- Improvement: Optimized, Streamlined, Reduced, Improved, Accelerated.
- Creation: Built, Launched, Designed, Developed, Established.
Which metrics to use by field (with before—after examples)
Not every metric carries the same weight in every field. Use the ones your industry recognizes as real signals of performance. Here are the most valued, with a couple of examples per area:
- Technology (p95 latency, uptime, req/s, test coverage). Before: Responsible for backend performance — After: Cut p95 latency from 800ms to 120ms and raised uptime to 99.9 percent across three services.
- Technology. Before: Wrote unit tests — After: Raised test coverage from 40 to 85 percent, reducing production bugs by 30 percent.
- Sales (quota, USD revenue, pipeline, win rate). Before: In charge of the sales territory — After: Exceeded quota by 128 percent, closing 1.2M USD in new revenue in one year.
- Sales. Before: Followed up with leads — After: Lifted win rate from 18 to 27 percent by restructuring the discovery call.
- Marketing (CAC, ROAS, traffic, leads, conversion). Before: Managed paid campaigns — After: Cut CAC by 35 percent while scaling ROAS from 2.1x to 4.3x.
- Marketing. Before: Handled the company blog — After: Grew organic traffic by 140 percent and generated 900 monthly leads in six months.
- Finance (USD savings, close in days, variance). Before: Prepared monthly reports — After: Shortened month-end close from 10 to 4 days by automating reconciliations.
- Finance. Before: Reviewed the budget — After: Identified 320K USD in annual savings, keeping variance under 2 percent.
- Operations and HR (time-to-hire, retention, NPS). Before: Handled recruiting — After: Reduced time-to-hire from 45 to 22 days while lifting 90-day retention to 94 percent.
- Operations. Before: Supported customers — After: Raised NPS from 32 to 61 by redesigning the support workflow.
What to do when you do not have exact numbers
Not every achievement comes with a dashboard. If you lack the precise figure, do not invent one —estimate with honest ranges and use proxies you do know: frequency (daily, weekly), scale (a team of 8, 3 countries), reach (10K users), or an approximate improvement percentage.
When the absolute number is missing, the before—after contrast still works. Saying from a manual process to a fully automated one signals impact even without a percentage. Stay conservative: a figure you can defend in the interview beats an impressive number you cannot back up.
- Frequency: Automated a report the team ran manually every week.
- Scale: Led a team of 6 across two time zones.
- Reach: Rolled out the feature to 12,000 active users.
- Honest range: Reduced processing time by roughly 30 to 40 percent.
Translating your achievements into English without calquing
The most common mistake in the ES to EN bridge is translating word for word. Encargado de or responsable de becomes a literal responsible for that drains the force out of the line. Instead of translating the text, translate the idea and pick the standard verb the English-speaking market expects.
Mind the US English details: metrics with percent or the symbol, amounts in USD, decimals with a point, and US date formats. These small touches make your resume read like a local candidate rather than a translation.