ATS Optimisation: What Actually Moves the Needle

You have limited time per application. Not every ATS optimisation tactic delivers the same improvement. Here is where your effort should go — ranked by impact.

Highest Impact: Skills Section Update

The single most effective ATS improvement for most CVs is updating the skills section to reflect the specific skills listed in the job description. This section is concentrated, keyword-dense, and easy to update quickly.

For each application: read the job description skills requirements, compare to your current skills list, add any missing skills you genuinely have. Remove skills that are irrelevant to this role and take up space.

Time investment: five minutes. Score improvement: often 10-20 percentage points.

High Impact: Personal Statement Rewrite

Your personal statement is the first content the ATS parses and contains high-weight keywords (job title, core competencies). A targeted rewrite that includes the target job title and key competencies from the job description can deliver significant score improvement.

Time investment: five to ten minutes. Score improvement: five to fifteen percentage points.

Medium Impact: Experience Bullet Updates

Updating two to three key bullets in your most relevant experience role to use the job description's language generates additional keyword matches across the body of your CV.

Prioritise bullets that describe your most relevant responsibilities and achievements. Change the terminology to match — not the facts, just the words.

Time investment: ten minutes. Score improvement: five to ten percentage points.

Lower Impact: Formatting Fixes

If your CV has no formatting issues, there is nothing to gain here. But if you have a two-column layout, tables, or headers containing key information, fixing these can dramatically improve parsing accuracy — which unlocks the full benefit of your keyword content.

Time investment: thirty to sixty minutes (reformatting a CV can be time-consuming). Score improvement: variable — depends on how badly the formatting was affecting parsing.

Lowest Impact: Adding Keywords Everywhere

Scattering additional keyword mentions throughout your CV without targeting specific high-value sections is low-impact work. Every keyword helps marginally, but the concentrated work on skills, personal statement, and key bullets delivers far more improvement per minute invested.

The Sequence

For each application:

1. Run an ATS check — establish your baseline score and see the missing keywords
2. Update your skills section (five minutes)
3. Update your personal statement (five to ten minutes)
4. Update one to three experience bullets (ten minutes)
5. Re-check your score

This sequence consistently delivers the highest improvement for the time invested.

Check your ATS score free at CVCircuit and optimise where it counts.