Most people meet the term "ATS" as a rumor: a robot that rejects resumes before a human ever sees them. Applicant tracking systems are real, and they do handle applications first — but they rarely work the way the rumor suggests. Knowing what the software actually does makes it easier to build an ATS-friendly resume, because you stop guessing and start fixing specific things.
You cannot control how a company configures its system, who reviews your file, or how many other people applied. You can control whether your resume is easy to read — for the software that stores it and for the recruiter who searches through it. That is the practical meaning of "how to make a resume ATS-friendly." Our Job Search guides cover the rest of the process.
What Is an Applicant Tracking System (ATS)?
An applicant tracking system is software an employer uses to receive, store, and organize applications. When you upload a resume, the system usually stores the file, pulls the text out of it, and creates a candidate record that recruiters can search, sort, and annotate.
Three things often get bundled together, but they are not the same:
- Parsing — software reading your file and sorting it into fields: name, contact details, employers, titles, dates, skills.
- Recruiter search — a hiring manager typing "Excel" into a search box and getting back everyone whose resume contains that word.
- Filtering — rules someone sets inside the system, such as "must have a work permit."
Only the first is fully automatic, and even that one is just reading — not judging.
That is why claims about ATS resume screening deserve caution. Systems are configured by each employer, and many sit closer to a filing cabinet with a search box than to an automatic judge. Some companies do add screening questions or knockout rules, but whether anyone is rejected automatically depends on that employer — not on some universal behavior shared by "the ATS." So "how ATS resume screening works" is best answered as: it stores, it reads, and it lets people search and sort. Your job is to make the reading part go well.
10 Practical Tips for an ATS-Friendly Resume
These ATS resume tips are not ten slogans. Each one comes with a reason, an example, and a limit — so you know when to apply it and when to stop.
1. Use a clear, conventional layout
Why: A single-column layout in reading order is the easiest thing for parsing software to follow, and for a tired recruiter to scan. Multi-column designs and sidebars can be read out of order or dropped.
Before: A two-column design with skills on the right and experience on the left. After: One column: name and contact at the top, then Summary, Experience, Education, Skills.
Limit: Conventional does not mean plain. Clean spacing and a little color are fine. Avoid structural tricks, not visual polish.
2. Choose readable fonts and consistent formatting
Why: Standard fonts and steady sizes keep the text machine-readable and the document skimmable. Unusual fonts can substitute or drop characters on another computer.
Before: Three fonts across one page; dates bold in one section, plain in the next. After: One font family, two or three sizes, one date format ("Mar 2023 – Present") used everywhere.
Limit: It does not have to be Arial or Times — many clean, common fonts work. The point is consistency.
3. Use standard section headings
Why: Parsers and recruiters both look for familiar labels. "Work Experience," "Education," and "Skills" are recognized instantly; creative headings may be mapped to nothing.
Before: "My Journey" and "What I Bring to the Table." After: "Experience" and "Skills."
Limit: Slight adaptation is fine — "Technical Skills" or "Relevant Experience" are clear. The risk is headings a reader has to decode.
4. Follow the application's file-format instructions
Why: The employer's instructions tell you what their system expects. Ignoring them is the most avoidable mistake on this list.
Before: The posting says "submit as .docx," and you upload a PDF because it is your default. After: You export a .docx and submit exactly that.
Limit: If no format is named, you have a choice — see the file-format section below.
5. Use keywords that accurately reflect the job requirements
Why: Recruiters search candidate records using the words of the role. If the posting says "stakeholder communication" and your resume says "talking to people," you may be invisible even as a strong match. This is the heart of resume keywords: matching the employer's language for work you genuinely did.
Before: "Responsible for helping different teams work together." After: "Coordinated weekly cross-team planning, aligning product, marketing, and support on release timelines."
Limit: Accuracy comes first. Use the employer's phrase only where it honestly describes your work — a resume full of terms you cannot discuss in an interview creates a problem later, not an advantage now.
6. Expand important acronyms where appropriate
Why: Search may use either version. Someone may type "SEO," someone else "search engine optimization." Writing both once captures either search.
Before: "Improved our SEM and CRM workflows." After: "Improved our search engine marketing (SEM) and customer relationship management (CRM) workflows."
Limit: Do not expand acronyms everyone in your field uses daily, like "HR" or "API." Expand once, then use the short form.
7. Describe experience with specific actions and results
Why: "Responsibilities included" tells a reader nothing about your impact. Concrete verbs and outcomes give both search and human readers something to hold — and something a recruiter can quote when recommending you.
Before: "Handled customer support tickets and reporting." After: "Resolved about 60 tickets a week and cut average response time from 14 hours to 4 by restructuring the queue."
Limit: Not every line needs a percentage. Numbers help when they are true and relevant; a clear action plus a plain outcome beats a vague claim dressed up with a statistic.
8. Avoid placing essential information only in graphics or complex layouts
Why: Text inside images, icons, or drawn objects often cannot be extracted at all. If your job title lives in a graphic banner, it may not exist for search.
Before: Skill ratings shown as five-star graphics with no text. After: A plain "Skills" list in text, with your title written normally in Experience.
Limit: If it matters, it should be readable as text — not only visible as a picture.
9. Check how text is extracted from the finished file
Why: A resume can look perfect on screen and still export badly. Before applying, confirm the text survives the trip.
Before: You export to PDF and assume it is fine. After: You open the file, copy a paragraph, paste it into a plain text editor, and everything arrives intact.
Limit: This is a quick check, not an audit. If the copied text comes out scrambled or in the wrong order, try another export setting or format.
10. Proofread the resume and verify all dates, titles and contact details
Why: A typo in your email means no one can reach you; contradictory dates make a recruiter hesitate; a title that does not match your LinkedIn profile raises doubts you never get to answer.
Before: "jane.doe@gmial.com"; a role dated "2020 – 2023" in one place and "2021 – 2023" in another. After: A checked email; dates that agree everywhere; titles written the same way each time.
Limit: Read it once slowly, and have someone else check the top third of the page. Small errors are the ones your eyes skip.
How to Find the Right Resume Keywords
Good resume keywords come from the posting itself, not from a keyword tool. Here is a short process:
- Copy the job description into a plain document.
- Highlight three kinds of terms: skills (what you do, like "forecasting"), tools (what you use, like "Salesforce"), and duties (what the role involves, like "quarterly reporting").
- Split them into two lists: what you have real experience with, and what merely appears in the posting. Be honest — this is the step most people rush.
- Rewrite your experience bullets with the employer's wording for the first list, in your own sentences.
A resume is a claim you may have to defend in a conversation. If "data pipelines" is on your resume, expect to be asked about data pipelines. Keep the first list; the second is a gap to address in an interview, not something to hide in a document. For that conversation, our guide to answering "Tell me about yourself" is a good place to prepare.
Which Resume File Format Should You Use?
Follow the employer's explicit instruction first, every time. If the posting names a format, that decision is already made.
When nothing is specified, both PDF and DOCX can work:
- PDF keeps your layout exactly as you designed it, which helps when visual consistency matters and the posting does not require editing.
- DOCX is easy for systems to read and edit, and it is safer when the posting or portal suggests Word, or a recruiter asks for an editable version.
Do not assume one format is best for every system — the right answer depends on what the employer asks for and on how well your file exports. Whatever you choose, run the check in tip 9: export it, open it, copy some text, and confirm it comes out cleanly.
How to Check Your Resume Before Applying
Run this checklist in order before you submit:
- Text order: Select all and paste into a plain editor — does the text appear in the order you wrote it?
- Headings: Are they labels a stranger would recognize?
- Dates: Do all ranges agree across sections, in one consistent format?
- Contact details: Is your email correct and professional, with a phone number you answer?
- Keyword relevance: Does the resume use the posting's wording for skills and duties you truly have?
- Spelling and grammar: Any typos in the top third, where attention is highest?
- The file itself: Does it open cleanly, with a sensible filename like "Firstname-Lastname-Resume"?
Once you have sent it, the next step is patience and a polite follow-up. Our guide to how to follow up on a job application covers the timing and wording.
ATS Resume Myths and Common Mistakes
- "Every resume is rejected by a bot." Often there is no bot deciding anything. Many systems simply store and organize applications while a person searches and reads.
- "More keywords is always better." Repeating a phrase does not help and can hurt readability. Match the terms that reflect your real experience, and use them naturally.
- "One perfect format beats every system." Employers configure systems differently. A clear, conventional ATS-friendly resume format works well broadly, but no single file type is universally best.
- "No reply means the ATS deleted me." Silence usually means volume and timing, not deletion. A polite follow-up is rarely wasted effort.
ATS Resume FAQs
Can an ATS read a PDF?
Often yes — text-based PDFs are commonly readable. The catch is a PDF built from scanned images or complex graphics, which may contain no extractable text at all. Test by copying a line and pasting it elsewhere; if nothing comes out, that file is not safe to submit on its own.
Should I use tables in my resume?
Use them sparingly. Simple text in a table is usually fine, but nested tables, tables used purely for layout, and content split across cells can be read out of order. Plain bullet lists remain the safer choice for resume formatting for ATS.
Do I need to tailor my resume for every job?
Not a full rewrite — but adjust it for roles you genuinely want. Updating the summary and a few bullets to match the posting's language, using keywords you can honestly claim, takes minutes and makes a real difference.
Does passing the software guarantee an interview?
No. Getting read is only the first step. A clear, accurate resume builds on your experience; the interview is where you explain it. Prepare for that conversation next, and follow up when it is appropriate.