How applicant tracking systems read your resume
What Workday, Greenhouse and the others actually do with your resume, and how to format it so nothing gets lost.
What an ATS does
An applicant tracking system (ATS) stores applications and lets recruiters search, filter and move them through stages. When you upload a resume, the ATS parses it into fields: name, contact, jobs, dates, schools, skills.
Recruiters then search those fields and the resume text by keywords. If the parsing broke your experience into pieces, or your skills are inside an image, they are invisible to that search.
Formatting that parses well
One column, standard section titles (Experience, Education, Skills), plain bullet points.
Dates in a consistent format on the same line as the job title or company.
No text in headers, footers, tables, text boxes or images. Save as PDF from a word processor, or DOCX when the portal asks for it.
Keywords, honestly
Use the words of the job description where they are true for you: the tools, the methods, the title. A recruiter searching for 'financial modeling' will not find 'built Excel models' as reliably.
Never paste hidden keywords: recruiters read the resume, and it shows.
Check what the portal understood
After uploading, read every prefilled field. Fixing a wrong date or a merged job takes a minute and keeps your application from looking careless.