What ATS Systems Actually Look For (And How to Beat Them)
Mar 26, 2026
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1 min read
Applicant Tracking Systems are the gatekeepers of modern hiring. Before a recruiter ever reads your resume, an ATS has already decided whether it's worth their time.
Understanding how these systems work gives you a significant advantage.
How ATS Parsing Works
When you upload a resume, the ATS extracts text and attempts to map it into structured fields: name, contact info, work experience, education, skills. It then scores your resume against the job posting's requirements.
The scoring is primarily keyword-based. The system looks for exact matches and close synonyms of the skills, tools, and qualifications listed in the job description.
Why Resumes Get Rejected
Formatting issues: Tables, columns, text boxes, and images break most ATS parsers. The system can't extract the text properly, so your content is lost.
Missing keywords: If the job posting says "Kubernetes" and your resume only says "container orchestration," you might not match. Use the exact terms from the posting.
Non-standard section headings: "Where I've Made an Impact" is creative, but the ATS is looking for "Experience" or "Work History." Stick to standard headings.
File format problems: Some older ATS systems struggle with certain PDF formats. DOCX is generally the safest bet, though modern systems handle both well.
How to Optimize
Use standard section headings: Experience, Education, Skills, Certifications.
Mirror the job posting's language. If they say "project management," use that exact phrase.
Include both acronyms and full terms: "Search Engine Optimization (SEO)" covers both.
Keep formatting simple. Single column, standard fonts, bullet points.
Include a dedicated Skills section with the exact technologies and tools mentioned in the posting.
Aenview's resume optimizer scores your resume against ATS compliance rules and role-specific keyword banks, showing you exactly what's missing. Upload your resume at aenview.com to see your ATS score.