Chronological vs. Functional Resumes: Which Passes the ATS?
Why functional (skills-based) layouts fail applicant tracking screens and how reverse-chronological structures index your work history.
When formatting your resume, you generally choose between two layouts: Reverse-Chronological (listing jobs starting with the most recent) and Functional (grouping by skill sets, hiding dates).
The ATS Rejection of Functional Resumes
ATS parsers are designed to map skills to timelines. They need to calculate how long you have used a technology. A functional resume lists your skills in one section and your companies/dates in another. Because the parser cannot link the two, it assumes your experience duration is 0 years.
Stick to Reverse-Chronological Layouts
- Link Roles to Achievements: Keep all bullets tied directly to a specific company and date range.
- Format Dates Clearly: Use standard formats like
MM/YYYY - MM/YYYYorYear - Present. Custom date formats can cause parsing calculation failures.
Before submitting either layout, test your document with the Tooltails Resume Checker to verify parsing accuracy, and follow our resume formatting guidelines to avoid common layout errors.
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