Security Engineer resume keywords
The most important ATS keywords for a Security Engineer resume are application security, penetration testing, SIEM, vulnerability management, OWASP, IAM, encryption, incident response. Include the ones you genuinely have, phrased exactly as the job description phrases them — applicant tracking systems rank resumes by keyword match, and about 75% of resumes are filtered out before a human reads them.
Hard skills and tools
These are the concrete, matchable terms an ATS scans for on a Security Engineer resume.
Soft skills
👉 Want to know which of these you're missing for a specific job? Paste your resume and the job posting into the free ATS checker — instant match score, no sign-up.
How to use these keywords
- 1. Mirror the posting. Use the employer's exact wording — if they write "application security", don't write a synonym.
- 2. Put them in context. A keyword inside an achievement bullet ("cut build time 40% with application security") beats a bare skills list for the human reader, and still matches.
- 3. Only claim what's true. Keyword stuffing skills you don't have fails at the interview stage.
- 4. Spell out acronyms once. Write the full term and the abbreviation so either search matches.
- 5. Re-tailor per application. Tailored applications are associated with roughly 2.5x more interviews.
What a Security Engineer is hired to do
Hiring managers for this role are looking for evidence of finding and closing vulnerabilities, responding to security incidents, hardening systems and meeting compliance. Frame your bullets around those outcomes, with numbers wherever you have them.
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