Keywords are how the ATS ranks you
An applicant tracking system does not read your resume the way a person does. It scans for specific terms that match the job description. These terms include job titles, technical skills, tools, certifications, methodologies, and industry-specific language.
When a recruiter opens the ATS, they can sort candidates by match percentage. A resume with an 85% keyword match shows up at the top. A resume with 40% ends up buried. Two equally qualified candidates can have completely different rankings based entirely on word choice.
This is why word choice matters. The best resume for one role might score poorly for another simply because the terminology is different.
How to extract keywords from a job posting
Every job posting contains the keywords the ATS is looking for. They are not hidden. You just need to know where to look.
Job title: The title itself is almost always a keyword. If the posting is for a Senior Product Marketing Manager, that entire phrase matters. Variations like Marketing Lead or Growth Manager may not match if the ATS is configured for the exact title.
Required skills: These are usually listed under the Requirements or Qualifications heading. Read them carefully. If the posting asks for Salesforce, Google Analytics, and SQL, those exact terms need to appear on your resume.
Preferred skills: These carry less weight than required skills, but they still count toward your match score. Including them can push you ahead of candidates who only matched the required list.
Responsibilities section: This section often contains action-oriented keywords like manage, implement, design, analyze, or coordinate. While less impactful than hard skills, these reinforce your relevance.
Repeated terms: If a skill or phrase appears multiple times in the posting, it is a high-priority keyword. A job posting that mentions data analysis in three different sections is signaling that this is central to the role.
Which keywords matter most
Not all keywords carry equal weight. Here they are ranked from most important to least important.
1. Hard skills and tools: These matter the most. Specific technologies, platforms, and software the role requires. Things like Python, Tableau, Kubernetes, Salesforce, or HIPAA compliance. ATS systems weigh these the heaviest because they are concrete and measurable.
2. Certifications: These are pass or fail. You either have a PMP or you do not. ATS systems often use certifications as hard filters, meaning if the posting lists it as required and your resume does not include it, you may be automatically excluded.
3. Job titles: If the posting is for a Financial Analyst, that phrase should appear on your resume, ideally as one of your actual job titles or in your summary. A matching title is one of the quickest ways to show relevance to both the ATS and the recruiter.
4. Soft skills: Communication, leadership, problem-solving. These matter the least to the ATS. Some systems count them, most do not. Include them if they appear in the posting, but do not prioritize them over anything above.
Acronyms and abbreviations
This is where many resumes lose points unnecessarily. ATS systems vary in how they handle acronyms. Some search for the full phrase Search Engine Optimization while others search for just SEO. If you only include one version, you risk missing a match.
The safest approach is to include both the full term and the acronym the first time it appears on your resume. Write it as Search Engine Optimization (SEO) in your skills section or first reference, then use whichever version fits naturally after that.
Common examples where this matters: Project Management Professional (PMP), Certified Public Accountant (CPA), Customer Relationship Management (CRM), Single Sign-On (SSO), Amazon Web Services (AWS), Continuous Integration/Continuous Deployment (CI/CD), and Return on Investment (ROI).
Where to place keywords on your resume
Placement matters because some ATS systems weigh certain sections more heavily than others.
Skills section: This is the single most impactful section for keyword matching. A dedicated skills section near the top of your resume gives the ATS a concentrated block of matchable terms. List your technical skills, tools, platforms, and certifications here.
Professional summary: A 2-3 sentence summary at the top of your resume is a natural place to include your most important keywords in context. Instead of just listing terms, weave them into a statement about your experience.
Experience bullet points: Use keywords naturally within your accomplishment statements. Something like Managed a $2M annual advertising budget across Google Ads and Meta, increasing lead generation by 35% is better than listing Google Ads and Meta separately in a skills section alone. The ATS picks up the terms and a recruiter sees them in context.
Job titles: If your actual job title was different from the one in the posting, consider adding the posting's title in parentheses. For example, a Marketing Coordinator applying for a Digital Marketing Manager role could write Marketing Coordinator (Digital Marketing Manager). This gives you the keyword match without misrepresenting your role.
How many keywords you need to match
There is no universal threshold, but research and industry data suggest that a 75% or higher keyword match significantly improves your chances of making it past the initial screen. Below 50%, most ATS systems will rank you too low for a recruiter to see.
The goal is not to stuff every keyword into your resume. It is to make sure the important ones are present and placed naturally. A resume that matches 80% of the required skills and reads well to a human will outperform one that matches 95% but looks like a keyword list.
If a posting lists 15 required skills and you genuinely have 12 of them, include all 12 using the exact terminology from the posting. Do not assume the ATS will make the connection between your wording and theirs.
Common keyword mistakes
Using different terminology: Writing handled social media accounts instead of Social Media Management describes the same work, but an ATS does not know that. Use the posting's language.
Listing keywords only in one place: Some ATS systems weigh keywords higher when they appear in multiple sections. If project management is in your skills section and also in an experience bullet, it reinforces the match.
Ignoring the job title: The title of the role you are applying for is a keyword. If it does not appear anywhere on your resume, you are missing one of the easiest matches.
Keyword stuffing: Cramming invisible keywords in white text or repeating terms unnaturally will not help. Modern ATS systems detect this, and even if they did not, a recruiter who sees your resume will notice immediately.
Using one resume for every job: Some job seekers send the same resume to every application. Without tailoring your keywords to each posting, you are relying on luck rather than strategy.
Tailoring vs. niching down
If you are targeting one specific role type, you may not need to rewrite your resume for every application. A resume built around a well-defined niche already contains most of the keywords those postings use. A cybersecurity engineer applying exclusively to cybersecurity roles will see the same core terms repeated across almost every posting. The same is true for a registered nurse, a Salesforce administrator, or a financial analyst staying within their specialty.
In that case, scan your resume against a few representative job descriptions to make sure your baseline is strong, then make small adjustments for postings that include unusual requirements or specific tools you have experience with but did not include on your default version.
If you are applying across different role types or industries, tailoring becomes essential. The keyword overlap between a Project Manager posting and a Business Analyst posting might only be 30%, even though the skills are related. In that situation, one resume will not cover both effectively.
The approach that works for most people is somewhere in the middle. Build a strong base resume for your primary target role, then adjust 10-20% of the content for each application based on what that specific posting emphasizes.
See which keywords you are matching
Paste your resume and a job description into the HiredTools scanner. Match Mode shows you exactly which keywords you have, which you are missing, and your match percentage.
Scan My Resume FreeThe bottom line
ATS keyword matching is not a game of tricks. It is about speaking the same language as the job posting. Extract the important terms, include them naturally across your resume, use both acronyms and full phrases, and tailor your resume to each application. The candidates who do this consistently are the ones who make it past the filter and into the interview.