What Should You Prepare to Perform Well in ATS and AI-Based Resume Screening?

By jihyukboin

To perform well in ATS and AI-based resume screening, rather than looking for a trick to raise an “ATS score,” break down the required and preferred qualifications in the job posting and connect evidence you genuinely have to your resume and application portal in an accurate, easy-to-read format. An ATS is not a single universal scoring system; its use varies by company, from managing application intake to extracting resume information, searching candidates, and comparing information against job requirements. For this reason, tailoring an application to each posting is more realistic than indiscriminately adding keywords. www.workday.comdoc.workday.com

What Are ATS and AI-Based Resume Screening?

ATS stands for Applicant Tracking System. It is software that companies use to post jobs, receive applications, manage candidate information, move candidates through hiring stages, and search for applicants. When you upload a resume, the system may extract information such as work experience, education, skills, languages, and certifications to create a searchable candidate profile. www.workday.com

AI-based resume screening may refer to situations where text analysis or requirement-comparison features are added to this process. For example, some tools extract a posting’s basic and preferred requirements by item, then indicate whether the information read from a resume and application shows that requirements are met, or where there may be fit and gap areas. It is more accurate to understand this not as a single technology that instantly decides who is a “good candidate,” but as a feature that helps recruiters structure and compare information while reviewing many applications. doc.workday.com

An important distinction is needed here. The use of an ATS does not mean every resume is automatically ranked by AI or that applicants below a certain score are automatically rejected. In a 2025 survey published by the Ministry of Employment and Labor, 21.7% of 396 responding companies said they used AI tools in hiring, and the stages of use varied among AI aptitude and competency assessments, application-document review, and use of AI interview results. Since practices differ by company, role, and hiring stage, applicants should verify the information required by the posting and application process rather than focusing solely on the existence of a system. www.moel.go.kr

Why Is the Idea of a “High ATS Score” Misleading?

Recruiting systems differ in their input fields, resume parsers, search functions, requirement-comparison features, and recruiter review workflows. In some organizations, an ATS mainly manages application status; in others, recruiters search candidates by skills, experience, and certifications. Some products may also show where an applicant meets or falls short of job-posting requirements. Because of these differences, it is difficult to say that there is one score or one correct resume that works for every posting. doc.workday.comwww.workday.com

A more useful practical question is: “What conditions is this posting trying to verify, and which sentence in my experience demonstrates each condition?” For example, if a posting lists “three years of relevant experience,” “experience using a specific analytics tool,” “ability to collaborate in English,” and “a required certification,” the application should contain facts that allow each condition to be verified. State experience length with dates, tool use through the work performed, language ability through real usage context, and certifications through their exact names and acquisition status.

In contrast, repeatedly using broad words such as “data,” “leadership,” or “communication” alone makes it difficult to determine which requirement is met and at what level. Even if a system reads those words, recruiters will later examine the context and consistency of the experience. In particular, because requirement-based comparison features may show whether evidence exists for each item, it is important not to separate keywords from their supporting evidence. doc.workday.com

How Should You Analyze a Job Posting?

Before writing an application, divide the posting into three groups to make the information clearer. The first is required qualifications, which may affect whether you can be considered at all if unmet. The second is preferred qualifications, which may add competitiveness if you have them. The third is key responsibilities, or the work you will actually perform after joining. If you read these three categories as one, it is easy to overstate preferred qualifications as mandatory or mistake job descriptions for simple keywords.

Information in the postingQuestion to askExample evidence to show on the resume
Required qualificationsDo I genuinely meet them?Length of experience, degree, certification status, work-availability conditions
Preferred qualificationsWhat do I have, and at what level?Projects using a tool, relevant industry experience, language-use context
Key responsibilitiesHave I done similar work before?Role held, scope of work, collaborators, deliverables, and outcomes

This table does not mean you should copy the posting’s language into your resume. It is a review tool for mapping the employer’s requirements to your own experience. For example, if a responsibility is “customer data analysis and report automation,” it is better to explain what data you handled, what tool you used, and what reports or process improvements you produced than to simply write “able to analyze data.” If the experience is genuine, you can state both the term used in the posting and the term used at your organization to reduce differences in meaning.

The wording in the posting should take priority because it is the basis for searching and comparison for that particular role. Skill extraction features can extract skills directly or indirectly mentioned in resume or job-description text and may use context to distinguish meaning. Therefore, if you have genuinely used a skill, it is clearer to include the formal name given in the posting within the bounds of the facts, rather than using only a commonly used alias. developer.workday.com

However, you should not add a tool to your skills section merely because it appears in the posting if you have never used it. If you have used a similar tool, describe that fact specifically and do not claim it is the same as the tool named in the posting. “Used Tool A to perform similar work” and “Have hands-on experience using Tool B” are different statements.

How Should Experience Be Structured to Connect With Requirements?

The experience section is not merely a place to list job titles; it is where you turn your claims into verifiable facts. For each role or project, separating the company name, job title, employment period, responsibilities, technologies or methods used, and outcomes makes the information easier for both parsers and people to find. Some requirement-comparison features are also described as finding evidence in work experience, education, skills, languages, certifications, and summary sections. doc.workday.com

A strong sentence reveals the subject, action, object, method, and result rather than relying on flashy language. You can organize it in the following order:

  1. Role: What were you responsible for?
  2. Task: What problem or work did you address?
  3. Method: What tools, methods, or collaboration approach did you use?
  4. Result: What deliverable, improvement, or verifiable change resulted?

For example, “performed analysis work” is too broad. Where factually accurate, a statement such as “organized monthly operational data and created metric reports using an analytics tool for team meetings” shows the connection between the work and the tool. When using figures, include only figures you can verify or explain. If organizationally sensitive information cannot be disclosed, you can describe deliverables and responsibilities within a shareable range instead of providing exact numbers.

Employment periods should also be unambiguous. Listing month and year in a consistent format makes it easier to review the length of relevant experience than listing years alone. If you held several roles at one company, separate each role and its dates. Combining every job into one line can make it unclear when and under which responsibilities the experience relevant to a particular posting occurred.

Entry-level candidates or those with limited experience do not need to describe themselves solely through full-time employment. When factually grounded, they can connect roles from internships, practicums, research, course projects, portfolio work, and volunteer activities to job requirements. However, distinguish between exposure in a course and the ability to apply a skill independently in work. Accurately stating the scope of your learning and contribution builds more trust than inflating the scale of your experience.

How Should You Write Skills and Keywords?

Skills are not just a list of names; they are markers that help reviewers quickly find evidence of use. If a posting requires a specific tool, methodology, programming language, or credential and you have actually used or earned it, state the name accurately and show the context of use in an experience bullet as well. Because skill extraction may be based on direct and indirect mentions in document text, wording in the skills and experience sections is clearer when the two support one another. developer.workday.com

For example, if you include a tool in the skills section, your related experience should include at least one task or project where you used it. Conversely, if a core tool appears in an experience statement but not in the skills section, it may be harder for a reviewer quickly checking the posting’s requirements to find. The wording in the two places does not need to be identical, but the terminology and facts should align.

Use proficiency labels carefully. Terms such as “expert,” “advanced,” and “proficient” mean different things to different people. If possible, explain your level through work performed rather than using only an adjective. For instance, cleaning data, interpreting analytical results to create decision-making materials, and teaching others how to use a tool are different kinds of experience. Writing within a range you can explain also helps you answer interview questions consistently.

Synonyms and abbreviations should also be organized. If a posting uses a formal name and you know the same skill by a different abbreviation, you may list both, such as “formal name (abbreviation),” when the experience is real. This is not repetition intended to manipulate search; it is a way to reduce terminology confusion. Similar but different technologies should not be labeled as the same thing.

Why Is a Simple, Consistent Resume Format Usually Better?

Even strong content can be disadvantaged in application review if it cannot be extracted from the document or is difficult to read. Guidance for some recruiting systems recommends using documents that contain text and avoiding reliance on image-only PDFs, images, shapes, text boxes, multi-column layouts, and tables for key content. It also recommends standard section headings, such as work experience, education, skills, and certifications, and consistent date formats. doc.workday.com

This does not mean every ATS accepts only a single-column resume. Parser performance and configuration vary by system. However, because applicants cannot easily know which system they will encounter, placing essential information in a normal text flow rather than only in complex visual elements reduces risk. This does not mean giving up design completely; it means ensuring decoration does not interfere with communication.

A safe basic structure is as follows:

  • Header: Name and necessary contact information
  • Summary: Core experience or capabilities directly relevant to the target role
  • Experience: Company, role, dates, responsibilities, technologies used, and outcomes
  • Education: School or training program, major, dates, and other necessary facts
  • Skills: An organized list of skills you have actually used or possess
  • Certifications, languages, and other information: Verifiable information relevant to the posting

The posting’s instructions should always take priority for file format. If there are no separate instructions, it is practical to check whether the PDF allows text selection and searching. If copying a sentence from the PDF causes the character order to become severely scrambled, or if you cannot find key terms using search, there is reason to review the document structure. This check does not guarantee success in any particular system, but it can help reduce the risks associated with documents saved only as images.

Why Are Application Portal Fields as Important as the Resume?

Online applications often ask applicants to enter work experience, education, skills, certifications, work availability, and answers to required questions separately from the resume file. Some systems can populate candidate information from resume parsing results, but depending on system settings, applicants may not see the parsing function or certain information may not be filled in automatically. Do not assume that uploading a resume file means every structured field has been completed. doc.workday.comdeveloper.workday.com

Before submitting, compare two things. First, check whether the portal’s fields for work experience, education, certifications, and skills are empty. Second, confirm that the information entered does not conflict with the resume. Verifiable items such as company name, job title, employment dates, degree, and certification name should match in particular. If your resume says you worked through March 2023 but the portal says May 2023, even a small mistake can appear to be a credibility issue.

Required questions may affect whether you advance in the system, so answer them without going beyond the scope of the question. For example, questions about a specific work condition, credential, or number of years of experience are not fields for presenting a hope or estimate as fact. Answer accurately based on your status as of the relevant date, and add necessary context concisely if an additional explanation field is available.

You should also review and correct automatically populated portal content rather than submitting it as-is. A role title may be truncated, dates may be split incorrectly, or skills may be omitted. Automated extraction may be convenient, but the applicant must make the final check on the accuracy of submitted information.

What “Optimization” Methods Should You Avoid?

The most important thing to avoid is packaging false information in system-friendly language. Adding skills you have not actually used, presenting roles you did not perform as work experience, or distorting dates to appear to meet an experience requirement can lead to inconsistencies being revealed in later stages. Because some requirement-comparison features can show where an applicant meets or falls short of each job condition, every keyword should have explainable evidence in experience, education, certifications, or other relevant information. doc.workday.com

Hiding keywords in white text or repeatedly adding irrelevant words at the end of a document is also not an appropriate strategy. These approaches can look strange to the person reading the document and do not explain how you relate to the role. What matters is not the total volume of words, but whether necessary terms appear in accurate experience statements.

Complex graphic resumes should likewise be considered in light of the role and submission route. A design role may require separate materials that display visual outputs, such as a portfolio. Even then, there is no need to place key experience, skills, and dates from the basic resume uploaded to the application portal only inside graphics. Separating a readable resume from separate work samples according to their purpose can account for both information delivery and expression.

Another misconception is that format does not matter at all because AI understands every sentence. Contextual analysis may be used in skill extraction, but basic structure remains important in a process that involves document upload, parsing, field mapping, search, and human review. Conversely, a simple format does not mean an application with insufficient content will pass. Format is a means of reducing the risk of communication failure; the core of evaluation is the fit between qualifications, experience, and the role. doc.workday.comdeveloper.workday.com

How Should You Think About the Limits of AI Hiring and Applicants’ Rights?

The use of AI in hiring raises issues of personal information, discrimination, explainability, and accessibility alongside questions of convenience. Applicants can check job postings and privacy-related notices to understand which tools an employer uses and where, then provide accurate information within the necessary scope after understanding why it is needed. In South Korea, the Framework Act on the Development of Artificial Intelligence and the Establishment of a Foundation for Trust has been in effect since July 21, 2026. law.go.kr

The Ministry of Employment and Labor has announced plans related to AI hiring that include prior notice, updates to the recruitment procedure law related to non-discrimination, and preparation of guidelines for AI use. However, individual companies’ actual processes and disclosure practices may differ. Rather than assuming “AI use must mean automated evaluation” or “no person will review the application,” base your judgment on the wording in the specific hiring notice. www.moel.go.kr

If an online application or assessment tool is difficult to use because of a disability, compatibility with assistive technology, or another accessibility issue, it is better to check the recruiting contact information and any notice of alternative procedures or accommodations in the posting rather than giving up near the deadline. The form of support needed may vary by company and system, so asking as early as possible and keeping a record can be practically helpful.

From a personal-information perspective, it is also advisable not to include more information in a resume than necessary. Focus on the fields required by the job posting and portal, and avoid routinely adding sensitive personal information unrelated to the target role. This is not an ATS tactic; it is a basic principle for reviewing the scope and purpose of the information you provide.

What Should You Check Before Submitting?

At the final stage, focus less on making sentences more polished and more on whether the posting, resume, and portal entries connect correctly. The following checklist can make it easier to find real errors than excessive keyword work.

  • List the posting’s required qualifications item by item and confirm that evidence for each appears in the resume.
  • Include only preferred qualifications you genuinely have, and confirm that you can explain the level and context of the relevant experience.
  • Compare core skill names with the wording in the posting, but make sure you have not overstated similar skills as identical ones.
  • Check that each experience entry shows, at the necessary level, the company name, job title, dates, role, related skills or methods, and outcomes.
  • Confirm that dates, titles, education, and certification names match between the resume and portal fields.
  • Open the PDF or specified file to check whether text can be searched and whether key information appears only inside images or complex tables.
  • Review automatically populated portal fields yourself for omissions or errors.
  • Ask whether you can explain every skill, figure, achievement, and qualification truthfully in an interview.

This review is not a formula that guarantees an offer. Hiring outcomes are affected by many factors, including the number of applicants, the role’s actual needs, interviews, and organizational circumstances. However, regardless of what ATS and AI features do, accurately reading the posting’s requirements and presenting your verifiable experience through consistent documents and entries is the most controllable preparation.

Conclusion: The Goal Is Not to Trick the System, but to Make Evidence Easy to Find

What matters in ATS and AI-based resume screening is not a universal high-score technique, but clearly demonstrating your fit for each individual posting. Divide the requirements into required qualifications, preferred qualifications, and responsibilities, then connect your actual experience, education, skills, and certifications to each requirement. Use the posting’s precise terminology within the bounds of the facts, but make sure each keyword is accompanied by evidence of experience or possession.

In addition, a simple and consistent document structure, accurately completed portal fields, and avoiding deceptive or hidden-text tactics reduce the risk of parsing errors and information inconsistencies. Companies may vary in how extensively they use ATS or AI, but the principle remains the same: structure the facts so that either people or systems can quickly identify an applicant’s strengths. doc.workday.comdoc.workday.com

Frequently asked questions

Are ATS scores calculated using the same criteria at every company?

No. An ATS may be used primarily for application intake and search, or it may also include resume information extraction and job-requirement comparison features. Rather than relying on a universal scoring strategy, it is important to present the posting’s required qualifications clearly and truthfully.

Is it beneficial to include many keywords from the job posting in a resume?

Using the posting’s exact terms can help when those keywords are supported by real experience or qualifications. However, listing unrelated terms or adding skills you have not used can create inconsistencies that become apparent during later review or interviews.

Must a resume use a single-column format for ATS purposes?

It is not an absolute rule that applies to every system. However, if key information depends on images, complex graphics, text boxes, tables, or multi-column layouts, some parsers may not read it properly. Standard headings and a simple text structure are generally safer.

Can I upload only my resume file and leave the portal fields blank?

This is not recommended. Depending on the recruiting system’s configuration, information extracted from a resume may not automatically populate every field. It is better to review and complete employment history, education, credentials, skills, and required questions yourself, ensuring they do not conflict with the resume.

Can a company that uses AI automatically reject me during resume screening?

That cannot be assumed. Companies vary in the hiring stages and methods for which they use AI tools. Even where AI is used, its application may differ across aptitude and competency assessments, application review, and interview-result use.

What should I do if I have difficulty using an online AI hiring tool?

First, check the job posting and application portal for alternative procedures, accessibility support, or a contact channel. The available support and process may vary by company and hiring tool, so if you anticipate difficulty, it is safest to ask before the deadline.