How to Optimize Your Resume for Applicant Tracking Systems (ATS)

Maya Caldwell

Maya Caldwell

Last updated August 14, 2026

If you have ever applied online and heard nothing back, it is easy to assume your resume was ignored. Often, it never made it to a person. Many employers use Applicant Tracking Systems (ATS) to collect, parse, and organize resumes before a recruiter ever reviews them. The good news: you do not need tricks or gimmicks. You need a resume that software can read cleanly and a human can scan quickly.

Below is the exact approach I used as a recruiter and career coach to help candidates (including nurses, remote tech applicants, and military veterans transitioning to civilian roles) get past ATS filters and into real conversations.

A job seeker sitting at a kitchen table editing a resume on a laptop with a notepad and coffee nearby, candid real-life photo

What an ATS actually does

An ATS is a database plus a scanning tool. When you upload a resume, it typically:

  • Parses your document by identifying sections like Experience, Education, Skills, and Certifications.
  • Extracts text and assigns it to fields so recruiters can sort and search.
  • Ranks or filters candidates based on job-related criteria, often including keywords, required credentials, location, and work authorization.

Most ATS issues come down to two problems: the system cannot read your formatting cleanly, or it cannot find enough job-relevant language to match you to the role.

One quick reality check: ATS optimization helps you get found and understood. It does not replace fit, strong experience, or a referral.

Start with ATS-safe formatting

Think of ATS formatting like submitting a form. Your resume can still look polished, but it should be straightforward.

Use a clean layout

  • One column is the safest across systems. Some modern ATS can handle two columns, but it is a higher risk.
  • Standard fonts like Calibri, Arial, Helvetica, or Times New Roman.
  • Consistent headings and spacing. Avoid heavy design elements that interrupt text flow.

Skip the ATS troublemakers

  • Text boxes, tables, and columns created with layout tools
  • Icons used in place of words (for phone, email, location)
  • Graphics, skill bars, star ratings, or logos
  • Headers and footers for important info (some parsers do not read them reliably)

Choose the right file type

Follow the application instructions first. If the posting specifies a format, use it.

  • .docx is often the safest choice across older systems and more finicky parsers.
  • PDF can work well when it is text-based (not an image) and the employer accepts it. Some employers even prefer PDF.

If the application does not specify a format, a .docx is a safe default. If it does, follow directions.

A recruiter at an office desk reviewing printed resumes with a laptop open, professional workplace photo

Contact info that parses

This sounds basic, but contact details are a common failure point when candidates use icons, headers, or fancy layouts.

  • Put contact info in the body of the document (not a header or footer).
  • Use words, not icons: Phone: 555-555-5555 | Email: [email protected]
  • Include City, State (or Remote) and a LinkedIn URL if it is up to date.
  • Keep it simple: one primary phone number, one professional email address.

Use standard section headings

ATS tools look for familiar labels. Keep headings conventional so the system knows where to put your information.

  • Contact Information
  • Summary (or Professional Summary)
  • Skills
  • Work Experience (or Professional Experience)
  • Education
  • Certifications (especially important for healthcare and IT)
  • Projects (great for tech, career changers, and recent grads)

Avoid creative headings like “Where I Have Been” or “My Toolkit.” They can confuse parsing and make your resume harder to search.

Keyword strategy: match the job

ATS optimization is not about stuffing buzzwords. It is about using the same language the employer uses, because that is what the system (and the recruiter) is searching for.

Where to find the right keywords

Use the job posting as your primary source. Focus on:

  • Job title variations (for example: “Registered Nurse” and “RN”)
  • Required skills (tools, systems, techniques)
  • Certifications and licenses (BLS, ACLS, CompTIA Security+, RN license)
  • Specialties (ICU, med-surg, telemetry, cloud security, front-end development)
  • Soft skills with context (prioritization, patient education, stakeholder communication)

Use acronyms and variants

When a field uses acronyms, spell it out once so both ATS and humans get it.

  • Example: Electronic Health Record (EHR), then Epic
  • Example: Virtual Private Network (VPN), then VPN
  • Example: Search Engine Optimization (SEO), then SEO

How to place keywords naturally

Use keywords in three places, in this order:

  • Summary: mirror the role and your strongest matching credentials.
  • Skills: list tools and hard skills that appear in the posting.
  • Bullets under Experience: prove the keyword with outcomes and context.

Quick self-check: If a keyword appears on your resume, a recruiter should be able to point to a bullet that demonstrates it. “Epic” should show up alongside how you used Epic. “Project management” should show up with a project you led.

Also worth saying clearly: do not try hidden keyword stuffing (like white text on a white background). It is a myth-driven tactic that can backfire, and it does not help you in a real interview anyway.

Write bullets recruiters trust

ATS wants clear text. Recruiters want evidence. The best bullets do both.

Use a simple structure

  • Action: What you did
  • Scope: For whom, how often, how complex
  • Outcome: What improved because of it

Examples (before and after)

Before: “Responsible for patient care and documentation.”

After: “Provided direct care for 5–6 med-surg patients per shift, documenting assessments and interventions in Epic to support safe handoffs and timely care coordination.”

Before: “Worked on tickets and helped users.”

After: “Resolved 25+ weekly Tier 1 to Tier 2 support tickets in Zendesk, troubleshooting Windows and VPN access issues and maintaining 95%+ CSAT.”

Before: “Helped with projects and meetings.”

After: “Coordinated a 12-week cross-functional rollout for a new inventory process, tracking milestones in Smartsheet, documenting SOPs, and reducing order delays by 18%.”

Notice what changed: the keywords are there, but they are tied to real work.

Make dates and titles easy to parse

Small formatting choices can cause big ATS headaches. Keep this information clean and consistent.

Best practices

  • Job title on one line, employer on the next, or vice versa. Just be consistent.
  • Dates in a simple format like “Jan 2022 – Mar 2025” or “2022 – 2025.”
  • Location can be “City, State” or “Remote.”

If you changed roles within the same company

List the employer once, then show each role underneath with its own dates and bullets. This improves ATS clarity and makes your growth obvious to a recruiter.

Skills section: keep it searchable

A skills section helps ATS match you quickly, but it should stay grounded in the job posting.

What to include

  • Tools and systems: Epic, Cerner, Jira, ServiceNow, AWS, Git
  • Methods: SDLC, Agile, wound care, triage, IV therapy
  • Compliance: HIPAA, SOX, NIST (only if relevant)
  • Languages: Spanish (conversational), ASL, etc.

What to avoid

  • Long lists of generic soft skills with no proof (hardworking, motivated, team player)
  • Skill ratings (many ATS systems ignore them, and recruiters often dislike them)
Close-up of hands typing on a laptop while editing a resume skills section, natural indoor lighting

Military veterans: translate roles

If you are transitioning from the military, ATS optimization often means translation. The goal is to keep your credibility while using civilian keywords.

How to translate effectively

  • Keep your branch and role, but add a civilian equivalent in parentheses when helpful.
    Example: “Platoon Sergeant (Operations Supervisor).”
  • Spell out acronyms the first time they appear.
  • Lead with transferable outcomes: logistics, compliance, safety, training, leadership, equipment accountability.
  • Include clear technical skills if you are targeting IT or remote roles: ticketing systems, networks, security tools, collaboration platforms.

If you are worried about sounding “too military,” remember: recruiters do not mind military experience. They mind not understanding it quickly.

Healthcare: credentials matter

For nursing and allied health, ATS matching is often credential-driven. Missing a required license or certification can filter you out in systems that use hard requirements or knockout questions, even if you are a great fit. Some organizations still review manually, but you should not count on it.

What to make easy to find

  • Licensure: “Registered Nurse (RN), State, License # (optional), compact eligibility if applicable.”
  • Certifications: BLS, ACLS, PALS, NIHSS, CCRN, CNA, etc.
  • Specialties and units: ICU, ED, NICU, telemetry, med-surg, home health.
  • Systems: Epic, Cerner, Meditech.

Place key credentials near the top in a dedicated Certifications and Licensure section so ATS and recruiters see them immediately.

Remote and tech roles

For remote roles, companies want proof you can deliver without being in the building.

Keywords that often matter (only use what is true)

  • Remote collaboration tools: Slack, Teams, Zoom
  • Work management: Jira, Asana, Trello
  • Documentation: Confluence, Notion, SharePoint
  • Security basics: MFA, VPN, least privilege

Experience bullets that help

  • Time zone coordination
  • Async communication and documentation habits
  • Measurable output: ticket resolution, deployments, cycle time, error reduction

How to test your resume

You do not need special software to catch the most common ATS issues. Try these quick checks.

1) The copy and paste test

Copy your resume text and paste it into a plain text document. If the order is scrambled, dates are missing, or sections blend together, your formatting is too complex.

2) The reverse outline test

Scan only your headings and first line of each bullet. Do you see the role, level, and impact quickly? If not, refine.

3) The job posting match test

Highlight the most important requirements in the posting. Can you point to where each one appears in your resume, either in Skills, Summary, or an Experience bullet? If there are gaps, address them honestly.

4) Double-check the application form

Many rejections happen in the application itself, not the resume. Answer knockout questions carefully (license, work authorization, shift availability, location). If you rush the form, even a perfect resume cannot save it.

Common ATS mistakes

  • Using a design-heavy template that looks pretty but does not parse.
  • Leaving off required credentials or burying them on page two.
  • Only listing keywords in Skills without proof in Experience.
  • Applying with one generic resume to many different roles.
  • Unclear job titles that do not match what employers search for (you can use a clarifying title if needed, as long as it is truthful).

A simple resume structure

If you want a reliable blueprint, this is my go-to order for most candidates:

  1. Contact Information (name, phone, email, city/state, LinkedIn)
  2. Professional Summary (2 to 4 lines tailored to the role)
  3. Skills (hard skills and tools aligned to the posting)
  4. Certifications and Licensure (if applicable)
  5. Professional Experience (most relevant roles first, quantified bullets)
  6. Education
  7. Projects (optional, great for tech and career changers)

FAQ

Do ATS systems automatically reject resumes?

Some applications use knockout questions (like licensure, work authorization, or shift availability) that can automatically disqualify you. Keyword matching is more often used to sort and prioritize, not to instantly reject. Either way, clean formatting and strong alignment help you get seen.

How many keywords should I include?

Enough to clearly match the role. Focus on the most repeated, most important requirements and weave them into your Summary, Skills, and Experience bullets. If you are forcing awkward phrases, you have gone too far.

Should I tailor my resume for every job?

Yes, but it does not have to be a full rewrite. Keep a strong master resume, then tailor the Summary, Skills, and a few top bullets to match each posting.

Can I use a PDF resume?

Yes, if the employer accepts it and your PDF is text-based. If the application does not specify a format, a .docx is a safe default across many systems. When in doubt, follow the employer instructions.

Your next step

Pick one job you genuinely want and tailor your resume to that posting today. Start with ATS-safe formatting, then tighten your Summary and the top third of page one so the role-specific keywords show up naturally. Once your resume is readable to software and convincing to humans, your application has a real shot at moving forward.

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