Nobody Tells You This When You Start Job Hunting
You send out application after application. Your resume looks good. Your experience is relevant. But the phone stays silent.
Before you start questioning your qualifications, here’s something worth knowing, most companies today don’t have a human reading your resume first. A piece of software does. And if that software doesn’t like what it sees, your resume gets filtered out before any recruiter lays eyes on it.
That software is called an Applicant Tracking System (ATS). And at Diamond Lead Associates, a recruitment agency in Chennai that works with candidates across industries every single day, we can tell you honestly, this is one of the most overlooked reasons good candidates don’t hear back.
This isn’t a technical guide full of jargon. It’s practical advice we share with our own candidates, written plainly so you can act on it today.
So What Exactly Does ATS Do?
When you hit “Apply” on a job portal, your resume doesn’t land in a recruiter’s inbox. It enters a system that reads it, scores it, and decides whether you’re worth a closer look.
The system checks for matching keywords, readable formatting, and relevant qualifications. If your resume scores low, it gets pushed down the list or dropped entirely. Research puts the rejection rate at around 75% of resumes never reaching a human at all.
Whether you’re applying directly to a company or going through the best recruitment service in Chennai, understanding how ATS works gives you a real edge over candidates who don’t.
1. Start With the Right File Format
This is simple but often ignored. Word documents (.docx) are more reliably read by ATS than PDFs. Some ATS systems struggle to extract text from PDFs properly, which means your information gets scrambled or missed.
Unless a job posting specifically asks for PDF, submit in Word. Keep a PDF version ready for when you’re sending your resume directly to someone, but for online applications, Word is safer.
2. Simple Formatting Wins Every Time
That beautifully designed resume template with two columns, icons, and colour blocks? It might look impressive, but ATS reads documents the way you’d read a page, left to right, top to bottom in a single flow. Anything outside that gets misread.
What works:
- Single column layout throughout
- Standard fonts, Arial, Calibri, or Times New Roman
- Font size between 10 and 12pt
- Plain bullet points only
- No tables, no text boxes, no images or logos
It may feel like you’re giving up on standing out visually. But getting past ATS is the first step, standing out happens once a real person is reading it.
3. Use Headings the System Recognises
ATS is looking for specific sections. If you’ve renamed them creatively, the system won’t know what it’s reading.
Stick to these:
- Professional Summary
- Work Experience
- Education
- Skills
- Certifications
- Achievements
“My Career Story” sounds personal. “Work Experience” gets read correctly. Save the creativity for your cover letter.
4. Keywords Are Everything, Use Them Wisely
If there’s one thing to take from this entire guide, it’s this: your resume needs to speak the same language as the job description.
Read the posting carefully. Note the specific skills, tools, and qualifications mentioned. Then use that same language in your resume, not a rough equivalent, the actual words. If the job says “stakeholder management,” write “stakeholder management.” Not “working with stakeholders.”
Place keywords in your summary, your work experience, and your skills section. But don’t overdo it. Stuffing keywords unnaturally makes your resume unreadable to the human recruiter who sees it next, and some ATS systems flag it too.
5. Your Summary Is Prime Real Estate
The top of your resume is the first thing both the ATS and the recruiter reads. A vague, generic summary is a wasted opportunity.
This tells nobody anything:
“Motivated professional looking for a challenging role to utilise my skills.“
This actually works:
“HR professional with four years of experience in talent acquisition, onboarding, and HR operations across IT and manufacturing. Currently looking for an HR Manager role with a growing organisation in Chennai.“
Specific. Keyword-rich. Tailored. Write a fresh summary for every significant application, it takes ten minutes and makes a real difference.
6. Your Skills Section Needs Its Own Space
Don’t bury your skills inside paragraphs. Give them their own clearly labelled section.
List them the way they appear in job descriptions. Spell out abbreviations at least once, write “Human Resources (HR)” so the system catches both. Group them logically:
Technical: Microsoft Excel | SAP HR | Zoho Recruit | Google Workspace
Core HR: Talent Acquisition | Payroll Processing | Performance Management | HR Compliance
Only list what you can genuinely back up in an interview.
7. Format Every Job the Same Way
Inconsistent formatting confuses ATS parsing. Use the same structure for every position:
Job Title
Company Name | City | Month Year – Month Year
- Action verb + what you did + result where possible
For example:
HR Executive
ABC Manufacturing | Chennai | June 2021 – Present
- Handled end-to-end recruitment for over 50 positions annually across engineering and operations
- Brought average hiring time down by 30% through process improvements
- Managed monthly payroll coordination for 200+ employees
Most recent role first, every time. Dates in Month Year format, every time.
8. Keep Contact Details Out of Headers and Footers
ATS often skips content placed in document headers and footers entirely. Put your contact information at the top of the main document body:
- Full name
- Phone number
- Professional email
- City and state
- LinkedIn URL
And use a professional email address. Your current work email is off-limits , and anything unprofessional reflects poorly before you’ve even been considered.
9. One Resume Does Not Fit All Jobs
This is the habit that holds most job seekers back. A single resume sent to fifty jobs will consistently underperform against a tailored resume sent to ten.
Build a master version with everything. Then for each application, spend fifteen minutes adjusting your summary, reordering your skills, and weaving in the keywords specific to that role. Your ATS score improves. Your relevance to that recruiter improves. Your callback rate improves.
Before You Hit Submit , Run This Check
- Saved as .docx
- Single column, no tables or graphics
- Standard fonts and heading names
- Keywords from the job description included naturally
- Summary tailored to this specific role
- Skills in their own dedicated section
- Work experience newest first with consistent dates
- Contact details in the main body
- Proofread, no spelling or grammar errors
One Last Thing
Getting past ATS isn’t a trick. It’s about presenting genuine experience in a format that both software and humans can read clearly. The same resume that scores well in ATS is also easier and faster for a recruiter to evaluate. You’re not gaming the system, you’re just removing unnecessary obstacles between your application and an interview.
If you’re actively job hunting and want a second pair of eyes on your resume, our team at Diamond Lead Associates is happy to help. We work with candidates across experience levels and industries, and we know exactly what hiring managers in Chennai are looking for right now.
We also support organisations looking for best recruitment services in Chennai, payroll services in Chennai, and CMM programming services in Chennai , reach out to know how we can help your business too.
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Diamond Lead Associates , Helping the Right People Find the Right Roles Across Chennai