Which keywords to add to your CV? A step-by-step guide

Which Keywords to Add to Your CV? A Step-by-Step Guide

You tailored your resume carefully. You read the job posting twice. You hit submit, and then nothing. A week passes. Two weeks. The silence isn't feedback, it's a wall. The frustrating truth is that your qualifications may be perfectly matched to the role, but a piece of software called an Applicant Tracking System (ATS) sorted your resume to the bottom of the stack before any human touched it. And the reason usually comes down to one thing: keywords. Knowing which keywords to add to your CV is the difference between getting a callback and getting silence.

This isn't about your qualifications. The ATS doesn't evaluate your experience, your judgment, or your work ethic. It scans for specific words and phrases from the job posting, compares them against your document, and ranks you accordingly. A well-written resume without the right keywords gets buried. And it's fixable.

Why Your Resume Disappears Before Anyone Reads It

The recruiter sitting across the desk from you isn't the first gatekeeper. The ATS is. It processes every application before a human sees a single line, ranking candidates based on how closely their resume mirrors the language of the job posting. If your resume uses "managed projects" and the posting says "project coordination," the system may not connect them as equivalent.

Three invisible problems cause most keyword mismatches:

• Terminology mismatch: You describe your skills in your own words instead of the posting's exact language
• Formatting blocks: Tables, columns, and graphics prevent the ATS from reading your text at all
• Overly generic phrasing: Phrases like "team player" or "results-driven" carry no keyword weight whatsoever

The third problem is the one most people overlook. A resume full of soft-skill buzzwords scores poorly because the ATS is looking for role-specific, technical language pulled directly from the posting.

How to Actually Read a Job Posting for Keywords

Most people read a job posting to decide whether to apply. You need to read it a second time to extract what to write. The two readings serve completely different purposes.

Step 1: Identify the Core Requirements

Read the "Requirements" and "Qualifications" sections and highlight every noun and noun phrase. Job titles, software names, certifications, methodologies, and industry-specific terms are your primary targets. If the posting mentions "Salesforce CRM," "cross-functional collaboration," and "B2B sales pipeline," those exact phrases belong in your resume.

Pay attention to how frequently a term appears. If "data analysis" shows up four times in one posting, it is clearly central to the role. Prioritize terms that repeat.

Step 2: Scan the "Responsibilities" Section

This section tells you what the job actually involves day to day. Extract the action verbs and their objects. "Develop quarterly forecasts," "present findings to senior leadership," "manage a team of five" - these phrases reveal the vocabulary the hiring manager uses. Mirror that vocabulary in your experience descriptions.

Step 3: Check the "Nice to Have" Section

Optional qualifications are often overlooked, but they represent easy wins. If you have any of those skills, add them. They push your match score higher without requiring any exaggeration.

What to look for: Specific software names, certifications, job title variants, industry methodologies, and any repeated phrase. These are the keywords the ATS is scoring.

Common mistake: Copying keywords into a hidden white-text block or a keyword dump at the bottom of the page. Modern ATS systems flag this as manipulation, and recruiters who see it reject the application immediately.

Why Doing This Manually Breaks Down Fast

Here is where the process becomes genuinely painful. Every job posting uses different language. A "marketing manager" role at one company is a "brand lead" at another and a "growth marketing specialist" at a third. Each one requires a different version of your resume with different keywords in different positions.

43% of resume rejections stem from formatting or keyword-matching errors, not a lack of qualifications (EDLIGO, 2025). That means nearly half the people being filtered out are qualified for the roles they applied to. They just didn't speak the ATS's language for that specific posting.

Manual tailoring works in theory. In practice, it means:

• Re-reading each posting for 20-30 minutes to extract keywords
• Rewriting your experience bullets to incorporate new terminology
• Checking that formatting hasn't broken (no tables, no columns, no text boxes)
• Saving as an ATS-readable PDF, not an image-based file
• Repeating this for every single application

If you are applying to 10 roles a week, that is a part-time job on top of your job search. Most people skip the tailoring after the first few applications, fall back to a generic resume, and wonder why the silence continues.

Stop Guessing and Start Getting Interviews

The keyword problem is solvable, but not by spending four hours per application. ATS Buster tailors your entire resume to a specific job posting in about a minute. You paste in the posting, upload your resume, and ATS Buster rewrites the document to reflect the posting's language, fills in the keywords you're missing, and returns a finished, ATS-readable version with a PDF export ready to submit.

It's not a scanner that shows you a list of gaps and leaves you to fix them. ATS Buster does the rewriting. The keywords land in context, inside your experience descriptions and skills section, where the ATS actually scores them.

It also generates a cover letter matched to the same posting, so both documents speak the same language.

Start tailoring your resume free with 3 free credits, no credit card required.

Stop Sending Resumes That Never Reach a Human

Your next application without keyword optimization will likely end the same way as the ones before it. The ATS doesn't know you're qualified. It only knows whether your document matches the posting's language closely enough to rank in the top tier.

The good news is that you don't need to guess anymore. ATS Buster compares your resume against the exact requirements of each posting and closes the gap automatically. The process takes about a minute, and the difference in match score can be the difference between silence and a phone call.

Create a free account at ATS Buster and tailor your resume to the next posting before you hit submit. Three free credits, no credit card, your tailored resume in about a minute.