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CV Mistakes — 15 Common Resume Errors That Cost You the Job (And How to Fix Them)

Astr Team
12 min read
Cover image for: CV Mistakes — 15 Common Resume Errors That Cost You the Job (And How to Fix Them)

Why Your Resume Gets Rejected Before Anyone Reads It

In 2026, over 75% of resumes are automatically rejected by ATS systems before a hiring manager ever sees them. In most cases, the reason isn't lack of experience — it's simple, avoidable mistakes.

Whether you're a fresh graduate or a seasoned professional, these 15 mistakes are the most common in the job market — and fixing them could be the difference between rejection and landing an interview.

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Mistake 1: Using a Format That's Not ATS-Compatible

The Problem

Using tables, multiple columns, graphics, or text boxes in your CV. ATS systems can't read these elements and may skip your content entirely.

The Fix

Use a simple single-column format without tables or graphics. Or use the Astr CV Builder, where every template is automatically ATS-compatible.

Golden Rule: If your CV looks "too pretty" — it's probably not ATS-friendly.

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Mistake 2: Missing a Professional Summary

The Problem

Jumping straight into work experience without a summary that explains who you are and what you bring. Hiring managers spend only 6-7 seconds per resume — without a clear summary, they may not read further.

The Fix

Write a 2-3 line summary that includes:

  • Your years of experience and field
  • Your top achievement or skill
  • What you're looking for
Good Example: "Certified Public Accountant (CPA) with 7 years of experience in Saudi Arabia's financial sector. Managed a team of 12 accountants and reduced monthly closing time by 30%."

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Mistake 3: Sending the Same Resume for Every Job

The Problem

Submitting the exact same CV for dozens of different positions. ATS systems compare your resume's keywords with the job description — if they don't match, you're rejected.

The Fix

Customize your resume for each application:

  • Read the job description carefully
  • Include the keywords mentioned in it
  • Reorder your experience based on relevance

Use the Astr Job Matcher to check your CV's match percentage with a job description before applying.

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Mistake 4: Spelling and Grammar Errors

The Problem

Typos and grammar mistakes signal a lack of attention to detail. According to hiring surveys, 58% of hiring managers immediately reject resumes with spelling errors.

The Fix

  • Review your CV multiple times
  • Use spell-check tools
  • Ask someone else to proofread it
  • Use the AI writing assistant in Astr, which automatically corrects and improves your text

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Mistake 5: Listing Duties Instead of Achievements

The Problem

Writing "Responsible for managing the team" instead of what you actually accomplished. Duties are generic — achievements set you apart.

The Fix

Convert every duty into an achievement using: Action Verb + Number/Percentage + Result

❌ Wrong (Duty)✅ Right (Achievement)
Responsible for salesIncreased sales by 40% within 6 months
Managing a teamLed a team of 15 and reduced turnover by 25%
Handling customersImproved customer satisfaction from 72% to 94%

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Mistake 6: Resume Is Too Long

The Problem

A 4-5 page resume exhausts the reader and dilutes the impact of important information. Nobody reads 5 pages.

The Fix

  • Fresh graduates: 1 page is enough
  • Mid-career (5-15 years): Maximum 2 pages
  • Senior executives (15+ years): Maximum 3 pages

Remove outdated experience (over 10-15 years old) and information unrelated to the target role.

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Mistake 7: Missing or Wrong Contact Information

The Problem

Forgetting your phone number, using the wrong email, or having an unprofessional email like "cool_guy_2005@...".

The Fix

Make sure you include:

  • ✅ Full name
  • ✅ Correct phone number (with country code)
  • ✅ Professional email (firstname.lastname@gmail.com)
  • ✅ City (full address not needed)
  • ✅ LinkedIn URL (optional but recommended)

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Mistake 8: Not Using Keywords from the Job Description

The Problem

ATS systems search for specific words from the job posting. If you don't include them in your CV, you'll be rejected even if you're fully qualified.

The Fix

  • Read the job description and extract key terms (skills, job titles, tools)
  • Weave them naturally into your summary, experience, and skills sections
  • Don't keyword-stuff — use them in logical context

Use the Astr CV Grader to check your keyword coverage.

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Mistake 9: Including a Photo (In Most Cases)

The Problem

In most markets, a photo can introduce bias and adds no professional value. Some ATS systems can't read images and skip the space allocated to them.

The Fix

  • Saudi/Gulf market: Photos are optional — if not requested, skip it
  • International companies: Generally preferred to not include one
  • If you do include one: use a professional headshot with a white background and formal attire

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Mistake 10: Unexplained Employment Gaps

The Problem

Periods of unemployment (e.g., a full year without work) without explanation raise red flags for hiring managers.

The Fix

  • Explain what you did during the gap (studying, freelancing, self-development, family care)
  • For short gaps (3-6 months) — use years only instead of months
  • Honesty is always better than avoidance

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Mistake 11: Vague and Generic Skills Section

The Problem

Listing broad skills like "communication skills" or "team player" without any specifics or evidence. These phrases are overused and meaningless.

The Fix

Make your skills:

  • Specific: "Data analysis using Excel and Power BI" instead of "technical skills"
  • Measurable: "Managed projects with budgets up to $500K"
  • Job-relevant: Prioritize skills mentioned in the job description

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Mistake 12: Including Unnecessary Personal Information

The Problem

Mentioning marital status, age, nationality, ID number, or religion. These have nothing to do with professional competence and may cause bias.

The Fix

  • Remove: marital status, date of birth, ID number, religion
  • Keep only: name, city, phone number, email
  • Exception: Some Saudi government roles may require nationality — only include it if explicitly requested

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Mistake 13: Not Listing Certifications and Courses

The Problem

Ignoring professional certifications and training courses. These credentials can be the deciding factor between you and another candidate.

The Fix

Create a dedicated certifications section with:

  • Certificate/course name
  • Issuing organization
  • Date obtained
High-value certifications in the Saudi market: SOCPA, PMP, CPA, CFA, SHRM, CIPD, Google Certificates, AWS Certifications.

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Mistake 14: Saving Your CV in the Wrong Format

The Problem

Sending your resume as .docx, .jpg, or .pages. Some systems can't read these formats properly, and formatting may break when opened.

The Fix

  • Best format: PDF — preserves formatting across all devices
  • Only exception: If the employer specifically requests .docx
  • Use Astr to export your CV directly as a professional PDF with zero formatting issues

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Mistake 15: Not Preparing for What Comes After the CV

The Problem

Focusing solely on the resume and ignoring interview preparation. Even if your CV makes it through, the interview is the real test.

The Fix

  • After submitting your CV, practice for the interview
  • Use the Astr Interview Simulator to practice with AI-generated real interview questions
  • Prepare answers for common questions: "Tell me about yourself", "Why do you want this job", "What are your weaknesses"

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Quick Checklist: Before You Hit Send

CheckStatus
Simple, ATS-compatible format
Clear professional summary (2-3 lines)
Customized for the target job
Free of spelling/grammar errors
Achievements with numbers (not duties)
1-2 pages maximum
Correct and complete contact info
Keywords from the job description
No unnecessary personal information
Saved as PDF

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Frequently Asked Questions

What's the most common CV mistake?

The most common mistake is using a format that isn't ATS-compatible — such as tables, columns, and graphics. The solution is to use an ATS-compatible CV builder that ensures proper formatting automatically.

How do I know if my CV has mistakes?

Use the free Astr CV Grader — it analyzes your resume and gives you a comprehensive assessment with instant improvement suggestions.

Do I need a different resume for each job?

Yes, it's highly recommended to customize your CV for each position. Use the Job Matcher to check your match percentage and improve it before applying.

What's the ideal number of pages for a CV?

One page for fresh graduates, two pages for mid-career professionals, and a maximum of three pages for senior executives.

Should I include a photo on my CV?

In the Saudi market, photos are optional. If not requested, it's better to skip it — especially when applying to international companies.

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Conclusion

Most resume rejections aren't due to lack of experience — they're caused by simple mistakes that are easy to fix. Review your CV against this checklist now, and fix every error before your next application.

Astr's free tools help you at every step:

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