What is an ATS?

If you've applied for a job online, there is a good chance your CV has gone through an ATS, particularly if you have applied to a large organisation or through a recruitment agency.

ATS stands for Applicant Tracking System. It is software that employers and recruiters use to manage job applications and candidates throughout the hiring process.

An ATS can receive applications, store CVs and cover letters, extract information from documents, organise candidates, allow recruiters to search applications and track where each candidate is in the recruitment process.

Some ATS platforms also include automated screening, matching or ranking features. However, it is important to understand that an ATS is not necessarily a single automated system that decides whether you get a job. Different employers configure and use their ATS in different ways, and recruiters may still review applications themselves.

Why Do Companies Use an ATS?

The main reason is volume.

A large organisation can receive hundreds or even thousands of applications across its vacancies. Recruitment agencies may also be managing applications for multiple clients and dozens of positions at the same time.

Without specialist software, keeping track of all those applications would be extremely difficult.

An ATS gives recruiters one central place to manage candidates. Instead of having CVs scattered across email inboxes and folders, applications can be stored against a particular vacancy and searched, filtered and moved through different stages of the recruitment process.

For employers, an ATS can therefore make recruitment more organised and manageable.

What Actually Happens When You Apply?

When you apply for a job through an online careers page, your application will often be submitted directly into the organisation's ATS.

You may not even realise this is happening.

You might click "Apply Now", create an account, upload your CV and answer several application questions. Behind the scenes, the information you submit is being collected and stored in the employer's recruitment system.

The ATS may then extract information from your CV, such as your name, contact details, employment history, education, skills and other relevant information.

This process is often referred to as CV or resume parsing.

The purpose is to turn the information in your document into data that the recruitment system can store and use.

Does an ATS Automatically Reject Your CV?

This is one of the biggest misconceptions about Applicant Tracking Systems.

An ATS can have automated screening or filtering capabilities, but it does not necessarily mean that a computer simply reads your CV and decides whether you are suitable for the job.

Some organisations use automation extensively. Others use their ATS primarily as a database and recruitment workflow tool, with recruiters doing much of the actual candidate assessment.

The system may be configured to search for particular qualifications, skills, experience or answers to application questions. A recruiter might also use search or filtering functions to find candidates who meet particular requirements.

Exactly how this works depends on the software, the employer and the recruitment process.

So rather than thinking of an ATS as a robot that makes the final hiring decision, it is more accurate to think of it as the technology used to manage and process candidates.

What Information Can an ATS Read?

Modern ATS platforms can process information from CVs and application forms, although the accuracy of that process can depend on how the document is formatted.

An ATS may extract information such as:

• Previous employers

• Job titles

• Employment dates

• Qualifications

• Skills

• Certifications

• Contact information

• Education

• Location

• Languages

The information can then be stored within the candidate's profile.

This is one reason a clear, conventional CV format is generally useful when applying online. If your CV contains complicated layouts, unusual formatting or information embedded in images, there is a greater possibility that some details may not be interpreted as intended.

What About Keywords?

Keywords can be relevant because recruiters and recruitment systems may search applications for particular skills, qualifications, job titles or other terms.

For example, imagine a company is hiring for a project manager and the job description specifically requires experience with a particular project management methodology and software platform.

If those skills are genuinely part of your experience, it makes sense to describe them clearly in your CV.

This isn't about stuffing your CV with every word from the job advertisement.

In fact, forcing keywords into a CV can make it sound unnatural and can make your application harder for a human recruiter to read.

The better approach is to describe your actual experience using clear, relevant terminology.

Do All Companies Use an ATS?

No.

There is no requirement for every employer to use an Applicant Tracking System.

Smaller businesses may receive relatively few applications and manage recruitment through email, spreadsheets or other systems. Some may use simpler recruitment software rather than a traditional ATS.

However, ATS platforms are particularly useful for organisations that recruit frequently or receive large numbers of applications.

Large employers, major organisations and recruitment agencies are therefore among the situations where job seekers are particularly likely to encounter an ATS.

You may also apply for a job through a careers website that looks completely different from another company's website, while both are actually connected to an ATS operating behind the scenes.

Recruitment Agencies and ATS Systems

Recruitment agencies are another important example.

An agency may advertise a position on behalf of a client and collect applications through its own recruitment platform. Your CV can then be stored in the agency's candidate database and potentially matched against current or future vacancies.

This means that when you submit your CV to a recruitment agency, you aren't necessarily applying for just one job in the same way you would when applying directly to an employer.

Your details may become part of the agency's broader candidate database, subject to the agency's processes and privacy policies.

For job seekers, this is one reason it is worth keeping your CV accurate and up to date.

What Does an ATS Mean for Your CV?

The growth of ATS technology means that the way you format your CV can matter when applying online. A CV should still be written for a human reader, but it should also be easy for recruitment software to process. A straightforward structure usually works well. Clear headings such as Work Experience, Education, Skills and Qualifications make it easier for both software and recruiters to understand the document.

It is also sensible to avoid unnecessary visual complexity. Elaborate graphics, text embedded in images, unusual tables and overly complicated layouts can make information more difficult for some systems to interpret.

This doesn't mean your CV has to look boring. It simply needs to communicate your experience clearly.

Should You Tailor Your CV for an ATS?

Yes, but don't think of this as trying to "beat" the system. Tailoring your CV means making sure that the experience and skills relevant to the position are clearly represented. Start with the job advertisement. Look at the skills, qualifications, experience and responsibilities the employer has identified as important. Then consider which of those genuinely apply to you.

If the advertisement asks for experience with a particular software platform and you have that experience, make sure it is clearly stated in your CV rather than assuming the recruiter will work it out from a vague description of your responsibilities.

The same principle applies to job titles and qualifications. If your previous role had an unusual internal title but you performed responsibilities that are directly relevant to the advertised position, your CV should make those responsibilities clear.

Is ATS Optimisation Just About Keywords?

No.

A CV packed with keywords isn't automatically a good CV.

Recruiters still need to read it, understand your experience and decide whether you are suitable for the role.

A CV that contains every possible keyword but doesn't clearly explain what you have achieved isn't likely to be particularly useful to a human recruiter.

The goal should be relevance and clarity, not keyword stuffing.

Think about it this way: an ATS may help your application become searchable or easier to process, but eventually a person may need to understand why your experience is relevant.

Write for both.

Why This Matters More in 2026

Online applications are now a normal part of recruitment, particularly for larger employers and recruitment agencies.

That means many job seekers will encounter an ATS without necessarily knowing it.

You may never see the words "Applicant Tracking System" when you apply for a job. You simply upload your CV, complete an online application and receive a confirmation email.

Behind that process, however, your application may be entering a recruitment database where it can be stored, processed, searched and managed alongside applications from other candidates.

The technology has also become more sophisticated, with some recruitment platforms incorporating automation, candidate matching and artificial intelligence features.

That makes it even more important to understand what an ATS actually is rather than relying on the idea that a mysterious computer is simply deciding which CVs are good and which ones are bad.

So, Has Your CV Gone Through an ATS?

If you've applied online to a large organisation or through a recruitment agency, there is a good chance it has.

That doesn't necessarily mean a machine has rejected or approved your application.

It means your application may have entered a system designed to help the employer or recruiter manage the hiring process.

The system may store your CV, extract information from it, allow recruiters to search your details, help filter applications against certain criteria and track your progress through the recruitment process.

The extent to which automation is involved varies considerably.

Final Thoughts

An Applicant Tracking System is essentially recruitment software that helps employers and recruiters manage candidates and job applications.

In 2026, ATS technology is a normal part of online recruitment, particularly among larger organisations and recruitment agencies. While some systems include automated screening and matching tools, an ATS is not necessarily the final decision-maker in the hiring process.

For job seekers, the practical takeaway is straightforward: make your CV easy to read, use a clear structure, accurately describe your skills and experience, and tailor your application to the role when appropriate.

Don't try to write a CV that is designed only to satisfy a computer.

Write one that can be correctly processed by recruitment software and clearly understood by the human recruiter who ultimately needs to assess your application.