ATS systems explained: why your CV is being rejected before anyone reads it
If you have been applying to jobs consistently but hearing nothing back, the problem may not be your experience. It may be that your CV is being rejected by a machine before any human ever sees it.
Applicant Tracking Systems — ATS for short — are software platforms used by over 90% of large employers and most mid-sized companies to manage recruitment. They receive applications, parse CVs, score them against job criteria, and filter out candidates who do not meet a threshold before forwarding the remaining applications to a recruiter.
How ATS systems work
When you submit your CV online, the ATS does several things:
1. It parses your CV into structured data. It tries to read your name, contact details, employment history, education, and skills — and store them in a database. If your CV format confuses the parser (unusual fonts, tables, graphics, headers and footers), data gets lost or misread.
2. It scores your CV against the job requirements. The system looks for keywords from the job description in your CV. It gives more weight to words in the job title, requirements, and skills sections.
3. It ranks all applications. Your CV gets a score. Only the top-scoring CVs are forwarded to a human recruiter.
If your score is too low — regardless of how qualified you actually are — you will never hear back.
What kills your ATS score
Wrong keywords. If the job asks for "project management" and your CV says "coordinating projects," the system may not make the connection. Use the exact terminology from the job posting.
Fancy formatting. Multi-column layouts, text boxes, tables, and images often get completely mangled by ATS parsers. Stick to a simple, single-column format with standard section headers.
Missing sections. Most ATS systems look for specific sections: Work Experience, Education, Skills. If your headers are creative (like "My Journey" instead of "Work Experience"), the parser may skip that content.
PDF formatting issues. Some ATS systems struggle with certain PDF formats. When in doubt, also submit a .docx version if the application portal allows it.
Skills buried in paragraph text. List your skills in a dedicated skills section. Do not bury them inside long paragraphs where the parser may miss them.
How to beat ATS systems
Mirror the job description. This is the single most impactful thing you can do. Read the job posting carefully. Identify the 8–10 most important skills and requirements. Make sure those exact words and phrases appear in your CV — naturally, in context.
Use a simple format. Single column. Standard fonts. No text boxes or tables. Section headers that match industry standards (Work Experience, Education, Skills, Summary).
List your skills explicitly. Have a dedicated skills section with a clean list of relevant skills. Do not rely on the ATS to extract skills from your experience bullets.
Include both spelled-out and abbreviated versions. Write "Search Engine Optimisation (SEO)" the first time. Some systems search for both versions.
Quantify everything. ATS systems also look for numbers as evidence of real achievement. "Increased revenue by 45%" signals an achievement; "responsible for revenue" does not.
How Jobsesame helps
Jobsesame's AI CV rewrite analyses the specific job description you are applying to and rewrites your CV to maximise your ATS score — inserting the right keywords, adjusting your summary, and restructuring your skills list. Users typically see their ATS score jump from the 40s to the high 80s or 90s.
The result: more of your applications make it past the machine and in front of a human recruiter who can appreciate your actual experience.
The bottom line
The ATS is not your enemy — it is just a filter. Once you understand what it is looking for, you can optimise for it without compromising the readability of your CV for human readers. Tailor every CV to every job, keep formatting simple, and speak the language of each job description. Do that consistently and your response rate will change dramatically.