What an ATS Actually Does
An Applicant Tracking System (ATS) is software that companies use to collect, sort, and filter job applications. Many ATS platforms parse your resume into structured fields (name, work history, skills, education) and rank or filter candidates based on keyword matches to the job description before a recruiter ever opens the file.
Formatting Mistakes That Break ATS Parsing
- Tables and multi-column layouts — many ATS platforms read left-to-right, top-to-bottom, and can scramble content trapped in columns or tables.
- Text embedded in images or graphics — most ATS software can't read text inside an image, so a skills chart or icon-based design may as well be blank to the system.
- Headers and footers — contact information placed in a header/footer is sometimes skipped entirely by parsing software.
- Unusual fonts or special characters — stick to standard fonts (Arial, Calibri, Georgia) and avoid decorative bullet symbols.
- Non-standard section titles — "Where I've Been" instead of "Work Experience" can confuse parsing logic looking for standard headers.
How to Actually Match Keywords
Read the job description carefully and mirror its exact language where truthful and applicable — if the posting says "project management" and your resume says "managing projects," some ATS keyword matching may not count it as an exact match. This isn't about keyword stuffing; it's about using the same terminology the employer (and their software) is scanning for.
A Safe, ATS-Friendly Structure
- Contact information in the main body, not a header/footer
- Professional summary (2-3 lines, optional but helpful)
- Work experience in reverse chronological order, with standard date formatting
- Skills section listing relevant keywords from the job description you genuinely possess
- Education
Save as a standard .docx or a simple, text-selectable PDF (test that you can highlight and copy text from it) — some older or poorly configured ATS platforms struggle with PDFs, so .docx is often the safer default unless the application specifically requests PDF.
Quantify Your Accomplishments
Beyond ATS compatibility, once a human does review your resume, quantified accomplishments ("Reduced processing time by 30%" vs. "Responsible for process improvements") are dramatically more persuasive and memorable.
Test Your Resume
Several free and paid tools let you check how your resume parses through common ATS logic before submitting. At minimum, try copying and pasting your resume's text into a plain text editor — if it comes out garbled or out of order, an ATS may see the same broken result.