ATS Resume Guide

Everything you need to know about Applicant Tracking Systems and how to make your resume pass automated screening.

What Is an ATS?

An Applicant Tracking System (ATS) is software that employers use to manage job applications. When you submit a resume online, the ATS scans, parses, and ranks it before a human recruiter ever sees it. Studies show that 75% of large companies use ATS software, and up to 90% of resumes are rejected by an ATS before reaching a recruiter.

How Does an ATS Work?

An ATS performs several functions when processing your resume:

• Parsing — Extracts information like your name, contact details, work history, education, and skills from your resume.
• Keyword Matching — Compares the content of your resume against the job description to determine relevance.
• Ranking — Scores your resume based on how well it matches the job requirements.
• Filtering — Automatically rejects resumes that do not meet minimum qualifications.

Common ATS Problems

1. Complex Formatting

Many ATS systems struggle with multi-column layouts, tables, text boxes, headers and footers, images, and graphics. If your resume uses these elements, the ATS may parse it incorrectly, mixing up sections or missing important information entirely.

2. Unusual Fonts or Characters

Stick to standard fonts like Arial, Calibri, or Times New Roman. Unusual fonts, symbols, or special characters may not be recognized by the ATS and could appear as gibberish.

3. Missing Keywords

If your resume does not include the specific terms and phrases from the job description, the ATS will give you a low match score. This is the most common reason qualified candidates are rejected.

4. Incorrect File Format

Some ATS systems prefer specific file formats. PDF is generally safe, but some older systems read DOCX better. Check the application instructions. If no format is specified, PDF is usually the best choice.

How to Optimize Your Resume for ATS

Use a Simple, Clean Layout

Single-column layouts are safest for ATS parsing. Avoid tables, columns, and complex formatting. Use standard section headings like "Experience," "Education," and "Skills" so the ATS can identify them easily. The Corporate template in ResumeAI is specifically designed to be ATS-friendly.

Include Keywords From the Job Description

Carefully read the job description and identify key terms, skills, and qualifications. Incorporate these naturally into your resume. Focus on:

• Technical skills and tools mentioned
• Industry-specific terminology
• Required certifications or qualifications
• Action verbs used in the description

Use Standard Section Headings

Use common headings that ATS systems recognize: "Professional Summary," "Work Experience," "Education," "Skills," "Certifications." Avoid creative headings like "Where I Have Worked" or "What I Know."

Spell Out Acronyms

Always include both the full term and the acronym on your resume. For example, write "Search Engine Optimization (SEO)" instead of just "SEO." The ATS might look for either version.

Save in the Right Format

Unless the job posting specifies otherwise, save your resume as a PDF or DOCX. Avoid image-based files like JPEG or PNG. Use a professional filename like "John_Doe_Resume.pdf" rather than "resume_final_v3.pdf."

ATS Checklist

Test Your Resume with ResumeAI

ResumeAI includes a built-in ATS Optimization Check feature that analyzes your resume and gives you a score from 0 to 100. It identifies strengths, weaknesses, and provides specific tips to improve your ATS compatibility. Use it before submitting any application to catch potential issues.

For more guidance, read our Resume Writing Tips and Cover Letter Guide to complete your job application strategy.