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 .

Backend Engineering Intern - OCaml

Ahrefsjobs · Palo Alto, California, United States; Singapore

About the Role

To ensure someone can be effectively supported throughout the intern we cn only look to hire an intern in either Singapore or in Europe.

You'll work remotely within our Middle-end / Tooling team, focusing on improving the observability of Dune, the OCaml build system. This isn't about cosmetic changes; it's about digging into Dune's core to expose how it builds things, making complex OCaml projects more understandable.

Responsibilities

  • Dive into the Dune codebase, identify areas where the build rules are translated into actions.
  • Implement modifications directly in Dune's source code to expose fine-grained information about builds.
  • Develop and contribute pull requests to the upstream `ocaml/dune` project, working with the maintainers.
  • Experiment with your changes and new tooling on real, large-scale industrial OCaml codebases to validate their usefulness.
  • Collaborate asynchronously with the team.

Requirements

Must have:

  • Solid OCaml programming skills. You need to be comfortable reading, understanding, and writing idiomatic OCaml.
  • Experience with basic Git and GitHub workflows (branching, committing, pull requests, code reviews).
  • Good written and verbal English communication skills for collaborating with a remote, async team and upstream maintainers.

Nice to have:

• Prior experience using more than one build system (e.g., Cargo, Make, Bazel, SCons, Nix, etc.).

What Success Looks Like

You've made significant contributions to Dune, resulting in working prototypes or even merged changes for a
tool that clarifies what happened during a build and why. This could involve exposing new internal Dune data
structures or developing a basic analysis tool on top, verified on an industrial codebase.

Ahrefs does not engage with agencies or third party recruitment solutions for the roles we hire for. If at any point we need help, we'll let you know!