What is an ATS?
An Applicant Tracking System (ATS) is software that companies use to collect, sort, scan, and rank job applications. Over 90% of Fortune 500 companies use some form of ATS to manage their hiring process.
Why ATS Optimization Matters
If your resume isn't ATS-friendly, it might never be seen by human eyes—regardless of how qualified you are. Understanding how these systems work is crucial for modern job searching.
Key Strategies for ATS Success
Use Standard Section Headings
Stick to conventional headings like "Work Experience," "Education," and "Skills." Creative alternatives might confuse the system.
Include Relevant Keywords
Carefully read the job description and incorporate matching keywords naturally throughout your resume. Focus on:
- Technical skills mentioned in the posting
- Industry-specific terminology
- Required qualifications and certifications
Choose the Right File Format
Unless specified otherwise, submit your resume as a .docx file. While PDFs preserve formatting, some older ATS systems struggle to parse them correctly.
Use Simple Formatting
Avoid:
- Tables and columns
- Headers and footers
- Images and graphics
- Text boxes
- Unusual fonts
Spell Out Acronyms
Include both the acronym and full name: "Search Engine Optimization (SEO)" instead of just "SEO."
Testing Your Resume
Use online ATS simulators to test how well your resume performs. Many free tools can give you insights into potential issues.
The Balance
Remember that your resume ultimately needs to impress humans too. Find the balance between ATS optimization and creating a document that's engaging and easy to read.

