10 Resume Mistakes That Instantly Get You Rejected

These 10 mistakes show up on roughly 80% of resumes scoring below 60% on ATS checks. Each one has a 30-second fix. Work through them in order and you'll likely add 20-30 points to your match score with no rewriting.

1. Generic bullets with no metrics

"Worked on various projects." "Helped ship features." "Improved performance." These bullets score near zero - no keywords, no metrics, no outcomes. Fix: rewrite using [Strong verb] [What] [How] [Result + metric]. Example: "Shipped React Native payments flow that lifted conversion 14% on $6M ARR surface."

2. Multi-column layouts

Two-column resumes break ATS parsers. The parser reads top-to- bottom left first, scrambling your reading order. Fix: switch to single column. Use indentation for alignment, not columns.

3. Tables for job headers

Laying out "dates | company | role" in a table often makes the parser read cell-by-cell instead of row-by-row. Fix: use tab alignment instead. The visual layout is similar; the parse behavior is dramatically better.

4. Text in headers or footers

Content in document headers/footers frequently vanishes during parsing. Your name in a designer logo at the top? Often gone. Fix: put your name, email, phone, and LinkedIn in the first 3 lines of the body text, not in a header block.

5. Buzzword summaries

"Results-driven, passionate, self-starter with a proven track record…" All vibes, no signal. Fix: rewrite the summary with specifics - role, years, domain, one differentiating strength with a specific result, and what you're targeting next.

6. Skills section with no structure

A 40-item comma-separated skills blob scores lower than 12 skills organized into 4 categories. Fix: group as Languages, Frameworks, Infrastructure, Tools. Put JD-priority keywords first in each row.

7. Junior voice on a senior resume

"Helped," "supported," "assisted," "contributed to," "worked with" - these verbs signal junior to most ATSes. Fix: for senior+ roles, swap for ownership verbs: "led," "owned," "drove," "shipped," "architected." Don't inflate scope - just re-voice what you actually did.

8. Keywords you have but didn't write

You used Kubernetes daily for 2 years, but your resume says "container orchestration." The ATS doesn't connect them. Fix: run your resume through an ATS checker, look at the missing-keywords list, and rewrite 3-5 bullets to include the JD's exact phrasing.

9. Old jobs weighted too heavily

If your best bullet is from 2018, the ATS is giving it ~0.5× the weight of a 2024 bullet. Fix: surface the most relevant older work into a "Selected Projects" section near the top of your resume, rather than leaving it buried in chronological order.

10. Inconsistent date formatting

"Jun 2023 – Present" vs. "6/23 – now" vs. "Summer 2023 →" in different entries. The parser uses regex to detect dates; if half your dates don't match the expected pattern, half your jobs aren't classified as jobs. Fix: pick one date format - "Month YYYY – Month YYYY" or "Month YYYY – Present" - and use it everywhere.

Quick diagnostic

Copy your resume, paste into a plain-text editor. Look at the output. If you see any of these patterns:

• Scrambled order or shuffled columns → mistakes #2 and #3
• Missing name or contact info → mistake #4
• Big chunks of run-on text → bullet merging from custom icons or tables
• Job entries missing dates or out of order → mistake #10

Then run the cleaned-up version through the ATS checker against a real JD. You'll likely see the starting score jump 15-30 points before you've rewritten a single bullet. Most people assume their resume is "fine" because it looks fine to them - but the parser sees something different, and that's what determines whether you get seen.

Fixing all 10 without a rewrite

None of these fixes requires a rewrite. The longest - #1 (bullet rewrites) - takes 15-20 minutes for 4-6 bullets. Formatting fixes (#2-#4) take under 10 minutes. Voice swaps (#7) take 5 minutes. Total: under an hour, start to finish, for a resume that's likely been failing ATS checks for months.

Want these applied automatically? The AI resume tailoring tool runs all 10 diagnostics + fixes in one pass. It catches the formatting issues, rewrites bullets to include missing keywords, re-voices for seniority, and hands you the output in about a minute. Either way, the 10 mistakes above are the low-hanging fruit of resume improvement - fix these first, then iterate.