How does an ATS work?
Employers configure applicant tracking systems to support their own hiring process. A common workflow includes collecting an application, storing the resume and answers, extracting selected information, organizing candidates in a pipeline, and helping authorized staff review or search records.
Application submitted
The candidate provides a resume and any required application answers.
Information stored
The system creates or updates a candidate record for the employer.
Text may be parsed
Readable resume content may be extracted into fields such as contact details or work history.
Recruiters review
Authorized people search, filter, compare, advance, reject, or communicate with candidates according to the employer’s process.
Important: “ATS” describes a broad category. One employer may use basic storage and workflow features, while another may add searches, assessments, ranking tools, matching features, or integrations.
What is resume parsing?
Resume parsing is the automated extraction of readable information from a resume into structured fields. Lever’s product documentation, for example, describes extracting information such as a candidate’s name, work history, organization, and contact details. Greenhouse documentation also describes cases where formatting can prevent or reduce successful parsing.
A parser does not “understand” a career in the same way a human reviewer does. It attempts to identify text and associate it with expected fields. That is why clear headings, ordinary text, consistent dates, and simple reading order are useful defaults.
Easier to interpret
- Selectable text
- Clear section headings
- Consistent job entries
- Complete job titles
- Simple reading order
May create problems
- Resume saved only as an image
- Important text inside graphics
- Complex columns or text boxes
- Contact details only in headers or footers
- Inconsistent or unclear sections
What varies between employers and ATS products?
File support, parsing behavior, search tools, scoring, integrations, required application questions, and recruiter workflows can differ. Even employers using the same ATS may configure it differently.
For that reason, universal claims such as “this template passes every ATS” are not credible. Follow the employer’s instructions first, then use readable formatting and accurate content.
Common ATS myths
| Claim | More accurate explanation |
|---|---|
| Every ATS automatically rejects resumes. | ATS products support different workflows. Employers decide how applications are reviewed and what criteria matter. |
| Repeating a keyword guarantees a high score. | Relevant terminology can clarify fit, but repetition cannot replace demonstrated experience and may make the resume harder to read. |
| There is one perfect ATS template. | Readable structure is a safer default, but products and employer settings vary. |
| A human never sees the resume. | Human recruiters and hiring managers commonly review candidate records and resumes, although when and how they review them varies. |
| You should hide keywords in white text. | Hidden or misleading content is dishonest, may be exposed, and does not improve the quality of the application. |
What can a job seeker control?
- Accuracy: Use only skills, responsibilities, dates, and results you can support.
- Clarity: Make roles, employers, dates, and sections easy to identify.
- Relevance: Prioritize experience that addresses the target role.
- File quality: Use a text-based file and follow the job posting’s format instructions.
- Application answers: Complete required fields carefully instead of assuming the resume replaces them.
- Final review: Confirm that the uploaded document opens correctly and matches the version you intended to send.
Sources and further reading
Vendor documentation describes specific products, not every ATS. It is used here to show real examples of parsing behavior and variation.
Reviewed by: Julio Fernandez
Last reviewed: July 25, 2026