Key Takeaways

  • 75% of U.S. employers use automated applicant tracking systems to screen resumes before a human reviews them (Harvard Business School & Accenture, 2021)
  • The most common ATS failures are missing keywords, incompatible formatting, and incorrect file types
  • ResumeGeni scores your resume across 8 parsing layers — modeled on the same steps enterprise ATS platforms like Workday, Greenhouse, and Taleo use to evaluate candidates

How ATS Resume Scoring Works

Applicant tracking systems parse your resume into structured data — extracting your name, contact info, work history, skills, and education — then score how well that data matches the job requirements. Many ATS rejections happen because the parser couldn't extract critical fields, not because the candidate wasn't qualified.

LayerWhat It ChecksWhy It Matters
Document extractionFile format, encoding, readabilityCorrupted or image-only PDFs fail immediately
Layout analysisTables, columns, headers, footersMulti-column layouts break field extraction
Section detectionExperience, education, skills headingsNon-standard headings cause sections to be missed
Field mappingName, email, phone, dates, titlesMissing contact info is a common cause of immediate rejection
Keyword matchingJob-specific terms, skills, certificationsKeyword overlap affects recruiter search visibility and ATS scoring
Chronology checkDate ordering, gap detectionReverse-chronological order is expected by most ATS
QuantificationMetrics, numbers, measurable outcomesQuantified achievements help human reviewers and some scoring models
Confidence scoringOverall parse quality and completenessLow-confidence parses get deprioritized in results

Frequently Asked Questions

Is ResumeGeni free?
Yes. ResumeGeni is currently in beta — ATS analysis, scoring, and initial improvement suggestions are free with no signup required. Full guidance and saved reports may require a free account.
What file formats are supported?
PDF, DOCX, DOC, TXT, RTF, ODT, and Apple Pages. PDF and DOCX are recommended for best ATS compatibility.
How is the ATS score calculated?
Your resume is processed through an 8-layer parsing pipeline that extracts structured data the same way enterprise ATS platforms do. The score reflects how completely and accurately your resume can be parsed, plus how well your content matches common ATS ranking criteria.
Can ATS read PDF resumes?
Yes, but not all PDFs are equal. Text-based PDFs parse well. Image-only PDFs (scanned documents) and PDFs with complex tables or multi-column layouts often fail ATS parsing. Our analyzer will flag these issues.
How do I improve my ATS score?
Focus on three areas: use a clean single-column format, include keywords from the job description naturally in your experience bullets, and ensure all sections (contact, experience, education, skills) use standard headings.

ATS Guides & Resources

Built by engineers with 12 years of experience building enterprise hiring technology at ZipRecruiter. Last updated .

Software Engineer - Full Stack

Cello · Remote

Your Mission

Cello is the Revenue Growth Infrastructure for modern digital businesses. We help teams acquire, retain, and monetize customers at scale by turning word-of-mouth into a systematic, measurable growth channel across user referrals, partners, and affiliates - built for the AI era. 

We’ve raised $8.3M total funding led by top-tier investors, and we’re now looking for a 
Senior Software Engineer - Full Stack (m/f/x) to help us realize our committed vision.

TL;DR

  • Seed, GrowthTech
  • Remote-first, Europe-based (must be within CET +/-3 hours)
  • Competitive salary + eVSOPS

Why join
  • Early-stage GrowthTech start-up with $8.3M in funding from top-tier investors.
  • Exciting product: APIs, attribution models, recommendation engines - not your typical CRUD app.
  • Real traction - 15+ new customers every month, 10M+ end users monthly.
  • Small team, so you'll genuinely shape how we build things.
  • You'll touch everything from frontend widgets to backend infrastructure to data pipelines. The work doesn't get repetitive.
  • We actively learn about new tech and AI tools and adopt where we can — we have to, because our customers do.
  • Remote-first, but we get together regularly - company-wide and as an engineering team.
  • Founding team comes from Twilio, Wise, and Skype.

What We’re Building

We help SaaS companies turn their users and partners into a sales channel through referrals, sharing, and recommendations - 10M+ end users interact with our system every month.

Our widgets live inside customer products, which means your code runs in environments you don't control. On top of that: APIs that customer developers integrate against, and a portal where customers manage their campaigns and analytics.

Under the hood: attribution across complex user journeys, recommendation engines, multi-tenant infrastructure serving hundreds of customers, scaling millions of events. Deeper than you'd expect from a referral tool.
Our product is integrated by customer developers - and that world is changing fast. The people building against our APIs and widgets range from corporate engineering teams to solo founders using AI coding agents. Keeping up with how developers work today, and making sure our product fits into all of those workflows, is one of the more interesting challenges here.

Job Description

  • Stack: React · NestJS · Python
  • You'll start with well-scoped tasks and ramp up from there - we don't expect you to know everything on day one.
  • Build features, fix bugs, and gradually take on more ownership as you learn the product.
  • You'll work alongside senior engineers who'll help you grow, but we won't spoon-feed you either.
  • We use AI tools heavily in our workflow - you'll be expected to leverage them to move fast and learn faster.



About You

Required
  • Good English (written & spoken)
  • Some experience with React (or similar) and NestJS/Python (or similar) - you don't need years, but you need to have built something real.
  • Hungry to learn. What you might lack in experience, you make up in energy and curiosity.
  • You're enthusiastic about AI tools and actively use them to punch above your weight - but you've also written code that works without AI doing the thinking for you.
  • Eager to learn the product and the domain, not just the tech.
Nice-to-haves
  • Experience with mobile development (React Native, Flutter, etc.)
  • AWS exposure - not a must, but willingness to learn is
  • Side projects or a portfolio that shows you like building things

Benefits

In the end, it’s all about the team and our culture. Understand why we love our job and see what it’s like to work at Cello in our People Playbook. We have some compelling perks and benefits: https://cello-growth.notion.site/People-Playbook-59cf404a0de5444ab0732ec905925179?source=copy_link