If you have applied for a job online in the last few years, you have already dealt with an applicant tracking system. You just may not have known what to call it. ATS platforms are the software that companies use to collect, organize, and review job applications. As a job seeker, they are the forms you fill out -- over and over -- every time you apply.
Not all ATS platforms are the same. Some are clean and fast. Others are slow, repetitive, and ask for information your resume already contains. This guide breaks down the most common ATS systems you will encounter in 2026, what to expect from each, and how to move through them without wasting time.
An applicant tracking system is software that sits between you and the hiring team. When you click "Apply" on a company career page, you are usually filling out a form managed by an ATS. Your answers get stored, parsed, and reviewed -- often by automated filters before any human sees them.
For job seekers, this means two things:
Understanding which ATS a company uses helps you prepare faster, fill out forms more accurately, and avoid the small formatting errors that cause applications to drop out of review.
Greenhouse is one of the most widely used ATS platforms at mid-size and large tech companies. The application flow is standardized and predictable: contact info, work history, education, resume upload, and a set of company-specific screening questions. Greenhouse applications tend to be clean and fast to complete once you know the format.
Lever is common at growth-stage startups and mid-market companies. It uses a similar structure to Greenhouse but often includes more open-ended questions up front. Lever applications sometimes appear embedded in a company's own career page rather than on a separate hosted form.
Workday is the dominant ATS at large enterprises and Fortune 500 companies. It is also the most time-consuming. Workday applications require you to manually enter every field from your resume -- even after uploading the file -- and often include multi-step forms across several pages. If you are targeting large companies, expect to encounter Workday frequently.
Ashby has grown quickly among well-funded startups and engineering-focused teams. The interface is modern and well-designed compared to older ATS platforms. Applications at ashbyhq.com follow a consistent structure and typically move faster than Workday or older enterprise systems.
LinkedIn's built-in application flow lets you apply directly within the platform using your saved profile. The experience varies widely: some applications are a single click, others involve a full multi-step form. LinkedIn Easy Apply works best when your profile is complete and up to date.
Workable is common at small to mid-size companies across a variety of industries. It has a clean, straightforward form structure. Applications typically include the standard contact and work history fields plus a cover letter option.
Glassdoor and Indeed often list jobs that redirect to a company's own ATS when you click apply. If you see "Apply on company site," you will land on Greenhouse, Lever, Workday, Ashby, or another platform. If you see "Easy Apply" on Indeed, that is a native Indeed form -- a different experience entirely.
Regardless of which platform you are using, most ATS application forms ask for the same core information:
The repetition is the problem. Entering the same information across 20 or 30 applications per week is not just tedious -- it is where small errors creep in and where applicants start cutting corners on customization.
Maintain a plain text document with all your standard application fields -- contact info, role descriptions, education details -- so you can copy and paste consistently across platforms.
ATS systems often parse resumes for keyword matches before a human ever reviews them. Reviewing the job description and mirroring the language in your resume increases your chances of passing initial filters.
JobWizard is a Chrome extension built specifically for ATS autofill. It reads your resume once, saves your profile, and fills in all standard fields automatically on Greenhouse, Lever, Workday, Ashby, Workable, Glassdoor, LinkedIn, and other major platforms. Instead of retyping your work history for the hundredth time, you click once and review the result.
Get JobWizard for free on Chrome
ATS platforms do not communicate with each other. You need your own system for tracking which roles you applied for, through which platform, and what stage you are at. A simple spreadsheet or a tool like JobWizard's built-in Tracker keeps your search organized so nothing falls through the cracks.
There is no guaranteed way to know which ATS a company uses before you apply, but some patterns hold:
If you check a company's job listings on LinkedIn or their career page, the URL of the application form usually reveals the ATS (greenhouse.io, lever.co, ashbyhq.com, myworkdayjobs.com, etc.).
You cannot control which ATS a company uses. You can control how efficiently you move through it. Knowing what to expect from each platform -- and having the right tools to handle the repetitive parts -- means you spend your energy on the things that actually differentiate your application: the cover letter, the tailoring, the research.
Install JobWizard and let it handle the autofill. You handle the rest.