What ATS software actually does

ATS platforms perform several functions, and understanding them helps you make better choices about your CV.

Storage and retrieval

At its most basic, an ATS stores submitted applications and allows recruiters to search and filter them. A recruiter with two hundred applications for a role will use the ATS to find the most relevant candidates — searching by skill, qualification, job title, location, or keyword. Whether your CV appears in those search results depends on whether the text in it can be read by the system and whether it contains the relevant terms.

Parsing

When a CV is submitted, the ATS parses it — attempts to extract structured information (name, contact details, work history, education, skills) and store it in searchable fields. Parsing quality varies across systems, but the common failure modes are the same: text embedded in images, text stored in tables or text boxes, and information in headers or footers that some parsers skip entirely.

Keyword scoring

Some ATS platforms include a keyword matching feature that scores applications against the job description. This is a tool for recruiters — they can use it to rank candidates or filter those below a threshold. It is not an automatic rejection engine, but if your CV scores poorly on keyword matching, it may appear lower in a recruiter's sorted list. Using the right terminology matters, though it should always reflect genuine skills and experience.

ATS platforms are tools for recruiters, not independent decision-makers. A human reviews the output. Writing a CV that reads clearly for a person remains more important than optimising exclusively for the system.

Formatting choices that affect ATS parsing

Avoid these

  • Tables for layout — some ATS parsers read table cells out of order or merge them, producing garbled text when extracted
  • Text boxes — text inside drawn text boxes is often completely invisible to parsers
  • Images and graphics — text embedded in images cannot be parsed; logos, icons, and visual skill ratings ("five stars for Excel") are ignored
  • Headers and footers for contact details — some parsers skip header and footer regions; if your name and email are only in the page header, they may not be extracted correctly
  • Complex multi-column layouts — two or three column CVs are trendy, but some parsers read left and right columns as a single continuous line, producing nonsense text when extracted
  • Non-standard fonts — unusual fonts do not affect parsing, but they may not render correctly when a recruiter views the parsed text in the ATS; standard fonts (Arial, Calibri, Georgia, Times New Roman) are safer
  • Abbreviations for technical skills without expansion — write out the full skill name at least once; a search for "Python" will not find "Py" or vice versa

Use these instead

  • A single-column layout with clear section headings
  • Contact details in the document body, not only in the header or footer
  • Standard section headings (Work Experience / Employment History, Education, Skills) — these are recognised by most parsers
  • Bullet points within sections (using standard bullet characters, not custom symbols)
  • A clean Word document (.docx) or simple PDF — most modern ATS handle both; check whether the employer or job board specifies a preference

Keywords: using the right language

The job description is your primary source for the terms your CV should contain. If a role specifies "stakeholder management," use that phrase — not "managing relationships with internal teams" — if both accurately describe your experience. If a role specifies a particular tool, platform, or methodology by name, include it exactly as stated.

This is not about stuffing your CV with keywords from the listing. It is about using the same terminology that the job description uses when it accurately reflects your background. Keyword stuffing — listing skills you do not have, or inserting terms in white text to fool parsers — is detectable by ATS systems that look for anomalies, and immediately visible to the recruiter who reads your CV.

For help identifying the relevant terms in a specific listing, see our guide on how to read a UK job description.

Content and structure

Professional summary or profile

A short professional summary at the top of your CV (three to five lines) gives the recruiter an immediate sense of who you are and why you are relevant to this role. It is one of the first things parsed and one of the first things a human reader sees. Make it specific to the type of role you are applying for — not a generic statement that could apply to anyone in your field.

Work experience section

List roles in reverse chronological order. For each role, include the employer name, job title, dates (month and year, or year only for older roles), and bullet points describing what you did, what you were responsible for, and — where measurable — what the outcome was. The employer name, title, and dates should be clearly formatted and parseable; do not put them inside decorative elements.

Skills section

A dedicated skills section increases the findability of your technical capabilities. List tools, software, languages, methodologies, and relevant technical skills. Keep it factual — do not rate your skills on a five-star scale that a parser cannot interpret and a recruiter cannot evaluate.

Education section

Include institution, qualification, and year. For most mid-career candidates, education appears after work experience. For recent graduates with limited work history, it may appear earlier.

The myth of "ATS rejection"

A great deal of ATS advice is built around the idea that CVs are automatically rejected by the system before any human sees them. This is rarely accurate for UK employers. ATS platforms facilitate human review — they do not replace it. A poorly formatted CV may parse badly, making it harder for a recruiter to find or read, but it is not automatically discarded without human involvement in most recruitment processes.

The practical implication: write a CV that a person can read clearly and evaluate quickly. Make the formatting simple enough to parse correctly. Use the right terminology. These goals align — a CV optimised for human readability is also, in most cases, easy for an ATS to parse.

See what your CV is currently demonstrating

Wallbreak's CV analysis reviews your uploaded CV for evidence gaps and presentation clarity — what it clearly shows, and where the evidence is thin. Useful before you start tailoring for a specific role.

Analyse my CV Search UK jobs

Frequently asked questions

What is an ATS and do all UK employers use one?

An Applicant Tracking System stores and manages job applications. Most medium and large UK employers use one. Small employers may use email or spreadsheets instead. If you apply through a formal online portal, you are almost certainly entering an ATS.

Does an ATS automatically reject CVs?

Rarely. ATS platforms primarily store, organise, and make applications searchable for recruiters — they do not typically make final pass/fail decisions. A recruiter reviews the output. The practical question is whether your CV is readable and findable when a recruiter searches for relevant skills.

Should I use a plain text CV to beat the ATS?

Not necessary. Most modern ATS platforms parse standard Word documents and simple PDFs correctly. The issue is specific elements that confuse parsers: tables, text boxes, images, and complex multi-column layouts. A clean single-column document with standard section headings will parse well.

How do I know which keywords to include in my UK CV?

The job description is your primary source. Skills, tools, qualifications, and role-specific terminology in the listing are what a recruiter will search for. Use the same language when it accurately reflects your experience. Do not include terms you do not genuinely have — keyword stuffing is detectable and counterproductive.

Is a two-page CV acceptable for UK job applications?

Yes, for most roles. One page suits early-career candidates. Two pages is standard for mid-career professionals. Beyond two pages, edit rather than extend — key information on page three may never be read.