Table of Contents
- How ATS Software Actually Works
- 1. Use a Standard, Single-Column Layout
- 2. Use Standard Section Headings
- 3. Mirror the Language of the Job Description
- 4. Put Contact Information in the Main Body
- 5. Avoid Graphics, Icons, and Skill Bars
- 6. Save and Submit as a Text-Based PDF
- 7. Include a Skills Section
- 8. Quantify Your Experience
- Common ATS Mistakes to Avoid
- ATS Checklist
- How to Check Your ATS Score
- Final Note
An Applicant Tracking System (ATS) is software that companies use to receive, parse, and filter job applications before a recruiter opens them. Most large companies and many mid-size organisations use ATS for every role. A resume that looks impressive to a human can still fail ATS parsing if the structure, format, or keywords are off - which means it is filtered out before anyone reads it.
This guide explains how ATS works and gives you specific, actionable changes that make your resume easier for these systems to read. No change can guarantee a result, because every employer configures their ATS differently.
#How ATS Software Actually Works
When you submit a resume through an online job portal, the ATS does three things: (1) it parses your resume into structured data - name, contact info, work history, education, skills; (2) it ranks your resume based on how well it matches the job description, primarily through keyword matching; and (3) it presents the ranked results to the recruiter, who typically only opens the top-ranked applications.
The most common ATS platforms in use are Workday, Greenhouse, Lever, Taleo, iCIMS, and BambooHR. Each has slightly different parsing logic, but all of them reward clean structure and keyword relevance.
#1. Use a Standard, Single-Column Layout
Multi-column layouts, text boxes, and tables look modern but cause parsing errors in most ATS. The parser reads your resume left to right, top to bottom - so a two-column layout causes content from both columns to be mixed in the wrong order. A single-column layout with clear section headings is the safest choice for any resume going through an ATS.
Pro Tip
SmartCampusBuddy templates all use single-column ATS-safe layouts by default. The built-in ATS panel also flags layout issues before you export.
#2. Use Standard Section Headings
ATS systems look for expected headings to categorise your content. Standard headings like "Work Experience", "Education", "Skills", and "Certifications" parse reliably. Creative headings like "My Professional Journey", "Things I Know", or "Where I've Been" often do not.
Section Headings
""Professional Journey" / "Technical Toolkit" / "Academic Background""
""Work Experience" / "Skills" / "Education""
Why this works: ATS parsers are trained on standard headings. Using unconventional headings means the parser may not categorise your content correctly, reducing your match score.
#3. Mirror the Language of the Job Description
ATS ranking is largely keyword-based. The system compares your resume against the job description and scores how many of the required terms appear. If the job posting says "cross-functional collaboration" and your resume says "worked with other teams", you may not score a match on that keyword.
Read the job description closely. Identify the specific skills, tools, and phrases the employer uses, and use those exact terms in your resume - wherever they are honestly true of your experience. This is not stuffing; it is speaking the employer's language.
#4. Put Contact Information in the Main Body
Contact information placed inside a header, footer, text box, or image is invisible to most ATS parsers. Your name, email, phone number, and LinkedIn URL must be in the main body text at the top of the document - not in a design element.
#5. Avoid Graphics, Icons, and Skill Bars
Skill rating bars rendered as graphics, icons, or visual elements are not readable by ATS. A bar showing "Python: 80%" communicates nothing to the system and may cause parsing issues around it. Use plain text skill lists instead.
#6. Save and Submit as a Text-Based PDF
A text-based PDF preserves your formatting and contains selectable, parseable text. A resume exported as a flattened image, a scan, or a JPEG has no extractable text and will read as blank to an ATS. A Word (.docx) file is parseable but can shift formatting between systems. PDF from a word processor or a resume builder is the safest choice.
#7. Include a Skills Section
Many ATS systems have dedicated fields for skills. A clearly labelled "Skills" section gives the parser a clean list to extract and match against job requirements. List your skills as comma-separated text or a simple bulleted list - not as a visual grid or graphic.
#8. Quantify Your Experience
This matters for the human reviewer who reads what the ATS passes through. Numbers make your impact concrete and memorable.
Quantified Bullets
"Improved the onboarding process."
"Redesigned onboarding flow for new hires, reducing ramp time from 3 weeks to 9 days - a 57% improvement."
Why this works: Numbers give a recruiter a reason to keep reading. Percentages, time saved, users affected, revenue impacted - all of these anchor your claim in reality.
#Common ATS Mistakes to Avoid
- Using a table to create columns - tables cause parsing failures in most ATS.
- Putting contact info in the document header (not body text).
- Saving as an image PDF or scanned document.
- Using a heavily designed template with text boxes.
- Using unusual fonts that the parser cannot extract correctly.
- Including the same keyword dozens of times (keyword stuffing) - modern ATS flag this and rank you lower.
- Skipping a Skills section entirely.
- Using abbreviations without spelling them out at least once (e.g., write "Search Engine Optimisation (SEO)" rather than just "SEO" if the job description spells it out).
#ATS Checklist
Action Checklist
- Single-column layout with no text boxes or tables
- Contact info in the main body text (not in header/footer)
- Standard section headings (Work Experience, Education, Skills, Certifications)
- Saved as a text-based PDF
- Keywords from the job description included naturally
- Skills section with plain text list
- No graphics, icons, or skill bars
- All fonts are standard (Calibri, Arial, Helvetica, Times New Roman)
- No images or photos in the document
- File size under 5 MB
#How to Check Your ATS Score
The SmartCampusBuddy ATS panel analyses your resume content in real time - checking keyword coverage, section completeness, and common formatting flags - as you write. This means you know before you export whether your resume is ATS-ready, not after you have already applied.
#Final Note
ATS optimisation is not about gaming the system - it is about making sure a well-qualified candidate (you) does not get silently filtered out by a formatting mistake or a missing keyword. Get the structure right, mirror the job description's language, and let your actual experience and projects do the work after that.
Put these tips into action with SmartCampusBuddy
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