Resume Rocket — AI Resume Builder

12 Resume Mistakes That Quietly Cost You Interviews

5 min read · Updated September 2026

These are the issues that show up again and again when resumes are scored against real job descriptions. Each one has a concrete fix you can apply in a few minutes.

Content mistakes

  • Duties instead of results. Fix: end each bullet with a number — volume, percentage, money or time.
  • One resume for every application. Fix: rewrite the summary and top three bullets per posting.
  • A summary that describes your personality. Fix: role, years, domain, two headline achievements.
  • Missing the job title you are applying for. Fix: mirror the posting's title if your work honestly matches it.

Formatting mistakes

  • Contact details in the page header. Fix: move them into the document body.
  • Skills in a sidebar column. Fix: single column, dedicated Skills section.
  • Inconsistent or missing dates. Fix: "Mon YYYY – Mon YYYY" everywhere.
  • Image-based or design-tool PDF exports. Fix: export selectable text and confirm you can copy-paste it.

Language mistakes

  • Passive voice: "was responsible for". Fix: lead with a verb — led, shipped, reduced, negotiated.
  • Unexplained internal jargon. Fix: describe the outcome in industry-standard terms.
  • Buzzword clusters with no evidence. Fix: one claim, one proof point.
  • Typos in the first 40 words. Fix: read the top section aloud before every send.

Key takeaways

  • Results beat responsibilities on every bullet.
  • Tailor the top third of the resume to each posting.
  • If you cannot copy-paste your PDF's text, neither can the ATS.

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