ATS guide: what it is, how it affects your job search and how to beat it

An ATS (applicant tracking system) is the software companies use to receive, sort and screen the resumes sent to a job posting. Before a recruiter reads your resume, the ATS has most likely already scanned it and compared it with the job requirements, so understanding how it works can be the difference between moving forward and getting lost in the pile.

By Alberto Mateo Alcalá, creator of Beatjob. Updated on October 31, 2026. How we write our guides.

What is an ATS?

ATS stands for applicant tracking system. It is software that companies use to receive, store, sort and screen the resumes they get for a job opening.

When you apply, a person usually does not read your resume right away: the ATS scans it automatically, pulls out your information (experience, education, skills, contact details) and compares it with the job requirements.

Why do recruiters use an ATS?

Job postings attract hundreds or even thousands of applications. Reviewing them one by one is not realistic. An ATS lets recruiters screen those applications quickly, prioritize the best-matching profiles and keep the whole hiring process in one place.

They are everywhere: according to the 2021 study by Harvard Business School and Accenture, more than 90% of the employers surveyed use automated systems to filter or rank middle- and high-skill candidates.

How does an ATS affect your job search?

The ATS does not decide who the best candidate is, but it does decide who makes the shortlist a human will see. If your resume is not ready to be read by a machine, you can be screened out even with the perfect profile.

It screens before people do

If the system cannot find the keywords or cannot parse the format, your application falls at the first hurdle. A Harvard Business School and Accenture study (2021), based on more than 2,250 executives and more than 8,000 workers, concludes that automated hiring filters out viable candidates whose resumes do not match the criteria, even though they could perform at a high level. The authors estimate that there are 27 million of these “hidden workers” in the United States alone.

Keywords make the difference

The ATS searches your resume for the terms in the job posting: technologies, tools, skills and job titles. If those terms are missing, the system gives you a low score and your profile ranks below others. You will find examples in our guide to ATS keywords by industry.

Formatting can sink your application

Complex columns, tables, icons or text inside images can stop the ATS from extracting your information correctly. A highly visual resume is not always a resume a machine can read.

And when your resume does reach a person, it usually gets only a quick skim. A clear structure with standard headings and concise sentences helps the important parts stand out at a glance.

How does Beatjob help you beat the ATS?

Beatjob is designed so your resume does not just look good, it also gets through the ATS. Instead of guessing what to write, it analyzes the job posting and optimizes your content to match what the system is looking for.

We analyze the job posting and extract the keywords

Paste the job posting you want to apply to and Beatjob identifies the most relevant keywords: the technologies, tools and skills the ATS will look for in your profile.

We optimize every section of your resume

With those keywords, we improve the wording of each section of your resume (experience, education, skills, projects…) and use the terms from the job posting wherever your experience already backs them up, keeping the language natural and professional. We never add facts, tools or achievements that are not in your resume: we point out what is missing so you can add it yourself if you really have it.

Match score and recommendations

We show you a score for how well your resume matches the job posting, along with specific recommendations to improve it. That way you know exactly what is missing and how to close the gap before you apply.

Quick tips to improve your resume

Use a simple, hierarchical structure with clear headings.
Work the keywords from the job posting in naturally.
Avoid tables, columns and text inside images.
Write dates and job titles in a standard, readable format.
Tailor each resume to the specific job.

If you want to go beyond the ATS, our resume writing tips explain how to structure it, describe your experience and tailor it to each job.

Frequently asked questions about ATS

What is an ATS?

An ATS (applicant tracking system) is software that companies use to receive, store, sort and screen the resumes sent to their job postings. It compares the information in your resume with the job requirements before a recruiter sees it.

How many companies use an ATS?

According to the study “Hidden Workers: Untapped Talent” by Harvard Business School and Accenture (2021), more than 90% of the employers surveyed use automated systems to filter or rank middle- and high-skill candidates.

How can I get past an ATS filter?

Use a simple structure with clear headings, work the keywords from the job posting in naturally, avoid tables, columns and text inside images, and tailor your resume to each job.

Sources

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