Most job seekers do not realize that their resume is read by software before any human sees it. Applicant Tracking Systems are used by over 90% of large companies and a growing number of mid-size ones. Understanding how they work is the first step to getting past them.
Step 1: Understand what ATS actually does
An ATS does three things with your resume. First, it parses your resume into structured data: extracting your name, contact info, work history, education, and skills into separate fields. Second, it scores your resume against the job description based on keyword matches. Third, it ranks you against other applicants.
If the parser cannot read your resume correctly, nothing else matters. Your experience could be perfect for the role, but if the ATS puts your job title in the education field or cannot find your skills section, your score will be low.
Step 2: Fix your formatting first
Before you worry about keywords, make sure the ATS can actually read your resume.
Use a single-column layout. Multi-column resumes confuse most parsers. Avoid tables, text boxes, and headers or footers for important information. Many ATS systems skip header and footer content entirely.
Use standard section headings: Experience, Education, Skills, Certifications. Creative headings like "Where I Have Made an Impact" or "My Toolkit" are not recognized.
Save as PDF unless the job posting specifically asks for Word. Modern ATS handles PDF well, and it preserves your formatting.
Use a standard font. Calibri, Arial, Garamond, and Times New Roman are all safe. Avoid custom or decorative fonts.
Step 3: Mirror the job description keywords
This is where most people fail. The ATS compares your resume against the job description and looks for matching terms. If the job description says "project management" and your resume says "managed projects," some systems will not count that as a match.
Read the job description carefully. Identify the specific skills, tools, certifications, and phrases they use. Then use those exact terms in your resume where they are truthful.
Do not stuff keywords. The ATS can detect keyword stuffing, and even if it does not, a recruiter will. Use keywords naturally in your experience bullets and skills section.
Step 4: Tailor your skills section
Your skills section is the easiest place to improve your ATS score. List the specific tools, technologies, and methodologies mentioned in the job description. Use the exact names: "Google Analytics" not "analytics tools," "Salesforce" not "CRM software."
Order your skills by relevance to the job. The ATS may weight skills that appear earlier in the section.
Step 5: Optimize your experience bullets
Each bullet point in your work experience should contain at least one keyword from the job description. Start with an action verb, include the relevant skill or tool, and add a measurable result.
Instead of: "Responsible for managing the team and delivering projects on time."
Write: "Led a cross-functional team of 8 engineers, delivering 12 product features on schedule using Agile methodology and Jira for sprint planning."
The second version hits multiple ATS keywords (cross-functional, Agile, Jira, sprint planning) while also being more compelling to a human reader.
Step 6: Include variations of important terms
Some ATS systems match exact strings, not concepts. If the job description mentions "Machine Learning" and "ML" interchangeably, include both. If it says "JavaScript" but you also want to be found for "JS," include the full name first and the abbreviation in parentheses.
The same applies to certifications: "Project Management Professional (PMP)" covers both the full name and the abbreviation.
Step 7: Test before you submit
Before submitting your resume, check it against the job description. Count how many of the key requirements you have addressed. If the job lists 10 required skills and your resume only mentions 4, you need to revise.
Tools like the Neat Stack ATS checker let you paste your resume and a job description to see your match score and missing keywords. Use these to iterate before you apply.
Common ATS myths
Myth: White text keywords will trick the ATS. Modern systems detect hidden text and may flag your application.
Myth: Graphics and icons make your resume stand out. They make it unreadable to ATS. Save the design for your portfolio.
Myth: One resume works for every job. Each job description has different keywords. A single generic resume will score low on most of them.
Myth: ATS only matters at big companies. Small and mid-size companies increasingly use ATS tools. Assume your resume will be parsed by software unless you are handing it directly to a hiring manager.
The checklist
Before you submit any application, verify: single-column layout, standard section headings, PDF format, job-specific keywords in skills and experience, quantified achievements, no tables or text boxes, standard fonts, and both full terms and abbreviations for important keywords.
Get all of these right and you will pass ATS screening consistently. The rest is about being genuinely qualified for the role.