Resumes · 8 min read
How an applicant tracking system actually reads your resume
An applicant tracking system is the software an employer uses to collect and organise job applications. When you apply online, your resume almost certainly goes into one. Understanding what it does is useful. Understanding what it does not do is more useful, because most of the advice circulating about applicant tracking systems describes a product that does not exist.
The short version: an ATS is a database, not a gatekeeper. It stores your application, pulls structured information out of it, and lets a recruiter search and filter. In the large majority of cases, **a human decides whether to reject you.**
What actually happens when you apply
Your application is stored as a record: your details, your answers to any application questions, and your resume file attached.
Your resume is parsed. The system reads the document and tries to extract structured fields: name, contact details, employers, job titles, dates, education, skills. This is pattern matching on a document, and it is imperfect. Unusual layouts confuse it.
You may be screened on hard requirements. If the employer set a question such as right to work or a required licence, an answer may route your application automatically. This is the one place automatic filtering genuinely happens, and it is based on your answers to questions rather than on your resume.
A recruiter reviews. They read, filter and search, then decide. Most systems show applications in a list, and a person works through it.
That is it. There is no score out of a hundred deciding your fate, and no algorithm silently discarding you. The volume of advice built on that premise is out of proportion to how often it is true.
The myths worth discarding
"75% of resumes are rejected by the ATS before a human sees them." This statistic circulates endlessly and has no credible source. It appears to have originated in marketing material for resume-optimisation products, which have an obvious interest in you believing it.
"You need to hit a keyword match percentage." Some tools show recruiters a match indicator. It is one column in a list, not a gate. Recruiters routinely open applications with low match scores, because the indicator is widely understood to be crude.
"Put white keywords on a white background to trick it." This is visible to anyone who opens the document properly, and it is read as dishonesty. It is one of the few things that will get you rejected outright.
"Never use a template." Most templates are fine. Specific formatting choices cause problems, which is a narrower issue and is covered in formatting your resume.
"ATS software rejects you for a career gap." It does not look for them. A human might ask about one, which is a conversation rather than a rejection.
What genuinely goes wrong
Parsing failures are real, and they are the actual problem worth solving.
Contact details in a header or footer. Some parsers do not read these regions. Your phone number and email should be in the body of the document.
Multi-column layouts. Parsers generally read left to right across the full width. A two-column layout can interleave two unrelated columns into nonsense.
Tables, text boxes and graphics. Text inside these is frequently not extracted. A skills section rendered as a graphic is invisible.
Images of text. A resume saved as an image extracts nothing at all.
Unusual date formats. Dates like "Spring 2021" or "2019-present" parse inconsistently. Use month and year.
Creative job titles. "Growth Ninja" does not map to anything a recruiter searches for. Put the recognised title and add your internal one beside it if it matters.
The consequence of a parsing failure is not automatic rejection. It is that your record is incomplete, so you do not appear in a search for the skill you actually have. That is a real cost and it is entirely avoidable.
What actually determines whether you progress
Since a person is doing the deciding, the things that matter are the things that have always mattered.
Whether you obviously meet the stated requirements. A recruiter skimming for thirty seconds is checking whether the essentials are visibly there. If the requirement is three years in a specific function, that should be immediately findable, not inferable.
Whether your most recent role is relevant. It gets read first and sets the frame.
Whether you describe outcomes rather than duties. "Responsible for social media" says nothing. "Grew the newsletter from 4,000 to 11,000 subscribers in a year" says something.
Whether it is readable quickly. A resume that takes effort to understand competes against forty that do not.
Whether you tailored it at all. Not rewritten from scratch. Reordered so the relevant things are near the top, and matching the language the employer used.
Writing a resume that gets read covers this in detail.
The keyword question, answered properly
Keywords matter, and not for the reason usually given.
They matter because a recruiter searching a database of two hundred applicants types a term into a search box. If your resume says "client relationship management" and they search "account management", you do not appear in that search. Not because you were filtered out, but because you were never returned.
So use the words the industry uses, and the words the job advert uses, where they honestly describe what you did. Spell out acronyms once alongside the abbreviation, because different people search for different forms.
What does not work is stuffing. A skills section listing sixty technologies is transparent, and the human reading it discounts the whole document. Which keywords matter covers the specifics.
The practical checklist
That is the whole of it. Ten minutes of checking, and then your effort belongs on the content, which is what the person reading it actually decides on.
- Submit a Word document or a text-based PDF, not an image or a scan.
- Contact details in the body, not the header or footer.
- Single column for the main content.
- Standard section headings: Experience, Education, Skills.
- Month and year for dates.
- Recognised job titles.
- No text inside images, and no tables for layout.
- Use the language of the advert where it honestly describes your experience.
Common questions
Does an ATS reject resumes automatically?
Almost never on the resume itself. Automatic routing happens on application questions such as right to work or a required licence. The resume is read by a person. HRM8's own applicant tracking system never auto-rejects a candidate.
Is the 75% rejection statistic true?
There is no credible source for it. It appears to have originated in marketing for resume-optimisation products.
What is the best file format for an ATS?
A Word document or a text-based PDF. Avoid images, scans and anything where the text cannot be selected.
Do I need to match a keyword percentage?
No. Match indicators exist in some systems and are treated as crude by the recruiters looking at them. Use accurate industry language so you appear in searches.
Should I use a resume template?
Most are fine. Avoid multi-column layouts, text in headers or footers, tables used for layout, and text inside graphics.
The short version
An applicant tracking system stores and organises your application so a person can review it. Fix the handful of formatting things that break parsing, use language that matches how people search, and then spend your remaining effort on the content, because a human is making the decision.