75% of resumes are rejected by Applicant Tracking Systems (ATS) before a human ever reads them. If you've been applying to jobs and hearing nothing back, your resume formatting — not your qualifications — might be the problem.
This guide explains exactly how ATS systems work and gives you actionable steps to get your resume through the filter.
What Is an ATS and How Does It Work?
An Applicant Tracking System is software that companies use to manage job applications. When you submit your resume online, the ATS:
- Parses your resume — extracting text, sections, and contact info
- Scores it against the job description — matching keywords and qualifications
- Ranks all applicants — recruiters typically only see the top 25%
Companies like Workday, Greenhouse, Lever, and Taleo power most ATS systems. Over 98% of Fortune 500 companies use one.
7 Rules for ATS-Friendly Resumes
1. Use Standard Section Headers
ATS systems look for specific headers. Use exactly these: Experience, Education, Skills, Contact Information, Summary or Professional Summary.
Avoid creative headers like "Where I've Made an Impact" or "My Journey" — the ATS won't recognize them.
2. Match Keywords from the Job Description
This is the #1 factor. If the job posting says "project management" and your resume says "managing projects," the ATS may not match them. Use the exact phrases from the job description.
Pro tip: Use our free ATS checker to see which keywords you're missing.
3. Use a Clean, Single-Column Layout
Two-column layouts, tables, and text boxes confuse ATS parsers. Stick to a single column with clear sections.
4. Submit as PDF (Usually)
PDF preserves formatting. Some older ATS systems prefer DOCX — check the job posting. When in doubt, PDF is safest.
5. Don't Use Headers/Footers for Important Info
Many ATS systems can't read text in headers and footers. Put your contact info in the main body of the document.
6. Spell Out Abbreviations
Write "Search Engine Optimization (SEO)" the first time, then use "SEO" after. This catches both the full phrase and abbreviation in keyword matching.
7. Use Standard Fonts
Arial, Calibri, Garamond, Georgia, Helvetica, Times New Roman. These parse cleanly in every ATS.
How to Check Your ATS Score for Free
Before submitting your resume, run it through an ATS scanner. ApplyGlide offers a free ATS checker that scores your resume against any job description and tells you exactly which keywords you're missing.
The Fastest Fix: AI-Generated ATS Resumes
The easiest way to create an ATS-optimized resume is to let AI do the keyword matching for you. ApplyGlide's AI resume builder reads the job description, identifies all required keywords, and writes tailored bullet points that naturally include them. Average ATS score: 87%.
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