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

Brellium · New York City

About Brellium

Brellium's mission is a big one – to improve the standard of care across the US healthcare system. We’ve built AI-powered technology that helps healthcare providers deliver safer, higher-quality care - starting with the first real-time medical review platform built to fix clinical and compliance risks before they impact patients.

Each year, 1 in 20 people in the U.S. experiences a medical diagnostic or compliance-related mistake. Most providers lack the time, staffing, and tools to mitigate these issues - so they go unnoticed, impacting care quality and increasing clinical and financial risk.

Brellium is building the AI-powered platform that helps providers deliver safer, more consistent care by mitigating risk early and aligning patient visits with clinical best practices. Our goal is to give every provider in the U.S. the tools to deliver clinically excellent, data-driven care - at scale.

Brellium was founded in 2021. Since then, we’ve grown to serve over 250,000 providers across all 50 states who use Brellium to take better care of their patients and ensure data-driven, compliant care. We’re a Series A company with over $30MM in funding from First Round Capital, Left Lane Capital, and Menlo Ventures.

About the Role:

We’re looking for a passionate Backend or Fullstack Developer to help build and scale the core systems that power Brellium’s platform. You’ll play a key role in shaping the technology that supports our AI-driven medical review platform and contributes directly to improving patient care across the U.S.

What You’ll Do at Brellium

  • Work closely with Product to integrate modern LLMs into real-world applications

  • Design and build systems end-to-end, touching everything from data pipelines to user interfaces

  • Deliver high-quality features quickly through strong execution, collaboration, and adaptability

  • Contribute to a fast-moving, highly collaborative environment where your ideas directly impact how care is delivered

You’ll Be Great for This Role If You:

  • Have 0-6 years of experience as a Software Engineer (Bonus if you hold a master’s degree)

  • Are proficient in Python and TypeScript

  • Have strong problem-solving skills and a bias toward action, tackling ambiguous challenges head-on

  • Are proficient with SQL and relational databases, and comfortable owning end-to-end data workflows

  • Are experienced with AWS deployments and have experience with modern LLMs (bonus for React/Next.js)

  • Thrive in fast-paced, high-impact startup environments

  • Communicate effectively and collaborate across teams

  • Are excited to grow with an early-stage company over the next several years, taking on increasing responsibility, helping shape the team, and contributing directly to the company’s success

We are committed to offering a comprehensive and competitive total rewards package, including robust health benefits, commuter benefits, and meaningful ownership opportunities through equity. Compensation decisions are made holistically, ensuring fairness and alignment with market benchmarks while recognizing individual contributions and potential.

Benefits offered include:

  • 401(k) Retirement Savings Plan

  • Equity Compensation

  • Dinner Provided via DoorDash & stocked kitchen for NY employees

  • Medical, Dental, and Vision coverage coverage of up to 100% premiums for you and your family

  • HSA / FSA

  • 11 paid holidays each year

  • Unlimited PTO

  • Training and professional development

  • Hybrid Work Schedule (4 days onsite, 3 if located > 1 hour away)

What it means to be "One of Us"

Bias to Action: Brellium teammates do not wait to make reversible decisions or seek unnecessary approval. We quickly decide and move forward. If the decision was incorrect, we quickly reverse it and move forward.

Thinks for themselves: Brellium teammates do not take things at face value. We ask "why" until base truth is reached. If a better solution is present, Brellium teammates use it, regardless of status quo.

Negative Maintenance: The opposite of high maintenance isn’t low maintenance - it’s negative maintenance. Brellium teammates are poised under pressure, self-motivated, self-improving, self-disciplined, self-aware, and non-defensive.

Expect Excellence: We hold ourselves to exceptionally high and continuously rising standards. We strive for thoughtfulness in our decision making, and for speed and quality in our execution. We acknowledge trade-offs and communicate proactively.

Communicate with Clarity: Brellium teammates communicate concisely, directly, and purposefully. We optimize for ensuring our points are easily understood the first time.

We are aware of fraudulent job offers claiming to be from Brellium. All legitimate communication comes from brellium.com, or [email protected], and we will never ask for money or sensitive personal information as part of our hiring process. If there are any questions please direct them to [email protected]