What an ATS is, and what it is not
An applicant tracking system is the software an employer uses to receive, store and sort applications. When you upload a CV, the system parses it — pulling out your name, contact details, job titles, employers, dates, education and skills — and stores those as structured fields in a database.
It is not a robot that scores your personality, and in most systems it does not automatically reject you. What it does is decide how well your CV can be read and how closely it matches the search a recruiter runs. If your experience never made it into the right fields, you simply do not appear in that search.
Why strong candidates get filtered out
Almost every avoidable failure comes down to formatting or vocabulary rather than ability.
- Layout the parser cannot follow. Two columns, sidebars, tables and text boxes can be read out of order, so dates end up attached to the wrong role.
- Text trapped in graphics. A designed header, a logo or a skills chart contains no readable text at all.
- Creative headings. "My journey" instead of "Experience" means the section may never be recognised as experience.
- Different words for the same skill. If the advert says "management accounts" and your CV says "monthly reporting", a keyword search for the former will not find you.
- A scanned or image-based PDF. There is no text to extract, so the CV parses as effectively blank.
The checklist
- One column, top to bottom — no side panels, tables or text boxes
- Standard headings: Profile, Experience, Education, Skills
- Job title, employer, location and dates on their own line per role
- Consistent date format throughout, e.g. Mar 2022 – Present
- No text inside images, logos, icons or headers and footers
- A skills section using the exact wording of the advert where it is true of you
- Achievements with numbers, not copied job descriptions
- Submitted as .docx or a text-based PDF, never a scan or screenshot
Keywords, honestly
Matching the advert's language is legitimate; claiming skills you do not have is not, and it fails at the interview stage. The useful exercise is translation: read the advert, list the skills and tools it names, and for each one decide whether you have genuinely done it. Where you have, use the employer's wording. Where you have not, leave it out and, if it matters to you, treat it as something to learn.
Keyword stuffing — a hidden white-text block, or a list of every tool in your industry — is visible to the recruiter who opens the file and reads as dishonest. One clear skills section plus achievements that show the skill in use does more.
Tailor per application
A single CV sent to forty adverts matches none of them well. The efficient approach is one strong base CV, then a light pass per application: adjust the profile paragraph, reorder bullets so the most relevant work sits first, and align the skills section with that advert's wording.
Do it with Pitanga Labs
The AI CV Writer builds a clean, single-column CV as an editable Word document. The ATS Resume Optimiser then scores that CV against a specific advert and lists the wording you are missing, so each application gets its own tailored pass.