What is ATS? — Definition & Guide
An ATS (Applicant Tracking System) is software that companies use to automatically collect, filter, and organize job applications before human recruiters review them.
What is ATS?
ATS software acts as a digital gatekeeper, scanning resumes for keywords, qualifications, and formatting before deciding which applications move forward in the hiring process. Most medium and large companies use ATS platforms like Workday, Greenhouse, or Taleo to manage the hundreds or thousands of applications they receive. The system ranks applications based on how well they match the job requirements and presents the top candidates to hiring managers.
Why it matters
Understanding ATS is crucial because your resume might be rejected before any human sees it if it's not ATS-friendly. Studies show that up to 98% of Fortune 500 companies use ATS, meaning most job applications go through this automated screening first. If your resume doesn't pass the ATS scan, you'll never get the chance to showcase your qualifications in an interview, regardless of how qualified you actually are.
How to use it
To work with ATS effectively, optimize your resume by including relevant keywords from the job posting, using standard section headings, and avoiding complex formatting that might confuse the software. Save your resume as a .docx or .pdf file (check the application instructions), and always tailor your application to match the specific job requirements. Focus on using the exact terms and phrases from the job description throughout your resume and cover letter.
ATS in practice
Keyword Matching in Action
A marketing job posting mentions 'social media strategy' and 'content creation' multiple times. An ATS will score resumes higher if they contain these exact phrases rather than similar terms like 'social media planning' or 'content development'. The applicant who uses the job posting's exact language has a better chance of passing the initial screening.
Format Recognition Issues
Two equally qualified candidates apply for the same position, but one uses a creative resume template with text in images and unusual fonts. The ATS can't read the creative resume properly and ranks it lower, while the candidate with a simple, text-based format gets through to human review. The formatting difference, not the qualifications, determined which application advanced.
Skills Section Optimization
A software developer lists 'JavaScript, Python, React' in their skills section because these were specifically mentioned in the job posting. Another candidate lists equivalent skills but uses different terminology like 'JS, Python programming, React.js.' The first candidate's resume scores higher in the ATS because it matches the exact keywords the system was programmed to find.
Common mistakes
- ⚠Using creative resume templates with graphics, tables, or unusual formatting that ATS software cannot properly parse and read
- ⚠Failing to include relevant keywords from the job posting, instead using different terminology that means the same thing but won't be recognized by the system
- ⚠Submitting the same generic resume for every application instead of tailoring keywords and phrases to match each specific job description
ATS and Cowrite
Cowrite's resume builder creates ATS-optimized resumes with clean formatting and helps you identify the right keywords to include based on your target job descriptions.
FAQ
How do I know if a company uses an ATS?+
What file format should I use for ATS applications?+
Can an ATS read my resume if it has multiple columns?+
How many keywords should I include in my resume for ATS?+
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