Why no one's calling you back: how ATS filters work

Why no one's calling you back: the hidden filters behind job applications

Have you ever applied to jobs and heard nothing but crickets? You're not alone.

In today's job market, Applicant Tracking Systems (ATS) play a huge role in recruitment. They help companies manage hundreds of applications — but they can also make qualified candidates feel completely invisible. Studies estimate that up to 75% of resumes are never seen by human eyes because they are filtered out by ATS software. That's a huge number.

Nearly 99% of Fortune 500 companies use an ATS to handle the volume of incoming applications. So if your applications seem to vanish into a black hole, it might be because a system is screening you out before a human ever gets the chance.

But don't panic. Knowledge is power. This article will demystify ATS and show you how to optimise your CV and online profile — so you can make the most of today's hiring technology and increase your chances of getting noticed.

How does an ATS work?

ATS platforms streamline the recruitment process from job posting to candidate selection. It begins when employers publish job vacancies online. As applications come in, the ATS scans each CV, looking for relevant keywords and qualifications. Those that align with the job criteria are flagged for further review, while others are filtered out. Matched candidates may then be invited to complete assessments, followed by interviews — and ultimately, the most suitable applicant is hired.

This process helps employers manage high volumes of applications efficiently, but it also means job seekers must optimise their CVs to ensure they pass the initial digital screening.

Is your CV getting ghosted by robots?

Applicant Tracking Systems act as digital gatekeepers, often filtering out applications before a human ever sees them.

One of the most common reasons for this is that your CV may not include the exact keywords or phrases the ATS is programmed to recognise. Even small differences in wording — such as using "B.S." instead of "Bachelor's degree" — can result in your application being automatically rejected, despite being fully qualified.

ATS algorithms are also strict when it comes to gaps in employment or unconventional formatting. Shockingly, 90% of executives admit their systems may be excluding qualified candidates without realising it — and nearly half of employers automatically reject CVs with employment gaps longer than six months.

How to optimise your CV and profile for ATS success

Here's what you can start doing today to improve your chances with ATS.

1. Use the Right Keywords ATS platforms scan CVs for specific words and phrases taken directly from the job description. If your wording doesn't match what the system is looking for, your application may be filtered out — even if you are well-qualified.

For example, if a job posting asks for experience in "Agile project management", simply writing "led teams" is too vague. Research suggests that a 50–70% keyword match is often required to pass through ATS filters.

2. Keep the Formatting Simple Even well-written CVs can be rejected if the format is incompatible with ATS software. Avoid images, logos, columns, or text boxes — many systems can't read them properly. Instead:

• Use standard section headings like "Experience", "Education", and "Skills"
• Stick to common fonts such as Arial or Calibri
• Present achievements using bullet points, not graphics or tables
• Save your CV as a PDF or Word (.docx) file, as both formats are generally ATS-friendly

Tools like Jobscan, ResumeWorded, and SkillSyncer can help you check how well your CV matches a job description and offer tips to improve it.

3. Tailor Each CV to the Job Submitting a generic CV to multiple roles is unlikely to be effective. Instead, customise each application based on the specific role. This includes reordering your bullet points so the most relevant achievements appear first, mirroring the language of the job advert, and emphasising responsibilities that directly relate to the role — helping both ATS and recruiters quickly see your fit.

4. Explain Employment Gaps or Career Changes Many ATS systems flag gaps in work history or non-linear career paths. Including a brief explanation can prevent your application from being excluded automatically. For example: "Career break (2019–2020) to care for family — now returning to full-time work." This kind of clear, proactive statement also helps human reviewers better understand your journey.

5. Keep Your Online Profile Aligned Ensure that your online profile supports your CV. Many ATS platforms integrate with LinkedIn, so keeping your profile up to date and consistent with your application is essential. Make sure it reflects the same skills, keywords, and job titles used in your CV. A professional photo and a concise, keyword-rich summary can further enhance your visibility.

ATS isn't the only way: a different job search experience

With the rise of AI, the application process is evolving beyond traditional ATS methods.

At GloPros, we use AI-powered matching. Your CV is used to automatically generate your profile, and when you apply for a role, we show how closely you match the vacancy as a percentage. This helps us identify and present top candidates to clients — even if they haven't applied themselves.

In fact, simply registering on our platform is enough to be considered for relevant jobs or projects. Once your profile is live, you become visible to clients without needing to apply for every opportunity. In some cases, they may even reach out to you directly.

To make the most of this, it is important to have a strong CV and a well-crafted profile that clearly highlights your skills, experience, and career goals. The more complete and compelling your profile is, the higher your chances of being matched with the right opportunities — and standing out to the right employers.