ATS-Friendly Resume Guide

What is an ATS and why does it matter

An Applicant Tracking System (ATS) is software that employers use to collect, sort, and filter job applications. When you submit a resume online through a company career page or job board, it often goes through an ATS before a human ever sees it. The system extracts your information, parses it into searchable fields, and sometimes scores it against the job requirements.

Estimates suggest that 75% or more of mid-size and large US employers use an ATS, and that number is higher among Fortune 500 companies. If your resume is not formatted for ATS readability, it may be rejected regardless of your qualifications — you could be the perfect candidate and never get an interview because the system could not read your resume.

Understanding how ATS works is one of the most valuable things you can do for your job search. It is not about gaming the system — it is about making sure your qualifications are accurately captured so a human can evaluate them.

How ATS parses your resume

When you upload a resume, the ATS reads the document and tries to identify sections like work experience, education, and skills. It extracts text and matches it against keywords from the job description. Some systems also rank candidates by how well their resume matches the job requirements, producing a match score that recruiters use to prioritize applications.

Parsing works best with simple, standard formatting. Complex layouts, graphics, unusual section names, and multi-column designs can confuse the system and cause your information to be misread, jumbled, or lost entirely. A resume that looks beautiful to a human may be unreadable to an ATS.

Most ATS systems have improved over the years, but the safest approach is still to use clean, standard formatting. If you want to test whether your resume is ATS-friendly, try copying and pasting all the text into a plain text file — if it reads in a logical order with no jumbled content, it will likely parse correctly.

Formatting rules for ATS compatibility

Follow these formatting rules to maximize ATS compatibility. These guidelines work across the major ATS platforms used by US employers, including Workday, Greenhouse, Lever, Taleo, and iCIMS.

Keywords: the key to getting found

ATS systems look for keywords from the job description. If the job posting asks for "project management" and your resume says "led projects," you may not match — even though the meaning is essentially the same. The system is looking for exact or close matches to the terms in the job description.

To optimize: read the job description carefully, identify the key terms (both hard skills like specific software and soft skills like leadership), and use those exact phrases naturally in your resume. Do not stuff keywords — they need to appear in context, not as a hidden list or a block of unrelated terms at the bottom.

Place keywords where they make sense: in your professional summary, in your skills section, and within your experience bullets. A keyword that appears in the context of an achievement is more valuable than one that appears in a list. Our job description analysis tool automates this process by comparing your resume to the job posting and showing you which keywords you are missing.

Common ATS mistakes to avoid

Using headers and footers for important information like contact details — the ATS may not read them. Including graphics, icons, or charts that cannot be parsed and may be skipped. Using text boxes or columns that jumble the reading order. Submitting a resume as an image file. Using overly creative section names the ATS does not recognize. Including personal details like photos or full street addresses that add parsing noise.

Another common mistake is over-optimizing for ATS at the expense of human readability. Your resume needs to pass both the machine and the human review. A resume that is perfectly keyword-matched but reads like a list of terms will not impress a hiring manager. Balance optimization with clear, compelling writing.

Testing your resume for ATS compatibility

Before you submit your resume, test it. Copy all the text and paste it into a plain text editor (like Notepad). If the text reads in a logical order — contact info at the top, then summary, then experience, then education — your resume will likely parse correctly. If the text is jumbled or out of order, reformat.

You can also use our resume builder to create a resume from scratch with ATS-friendly formatting built in. Our ATS-friendly templates are tested against major systems and designed to parse reliably while still looking professional to human reviewers.

Putting it all together

An ATS-friendly resume is not about tricking the system — it is about making sure your real qualifications are accurately captured so a human can evaluate them. Use standard formatting, include relevant keywords from the job description, avoid complex layouts, and test your resume before submitting. The goal is to get past the machine so a hiring manager can see why you are the right fit.

Remember that ATS optimization is just one part of a strong resume. Your content — your achievements, skills, and experience — still matters most. Use our career resources section to learn more about writing effective resume content, and our job description analysis tool to identify the keywords that matter for each application.