CV Mistakes — 15 Common Resume Errors That Cost You the Job (And How to Fix Them)
Table of Contents
- Why Your Resume Gets Rejected Before Anyone Reads It
- Mistake 1: Using a Format That's Not ATS-Compatible
- The Problem
- The Fix
- Mistake 2: Missing a Professional Summary
- The Problem
- The Fix
- Mistake 3: Sending the Same Resume for Every Job
- The Problem
- The Fix
- Mistake 4: Spelling and Grammar Errors
- The Problem
- The Fix
- Mistake 5: Listing Duties Instead of Achievements
- The Problem
- The Fix
- Mistake 6: Resume Is Too Long
- The Problem
- The Fix
- Mistake 7: Missing or Wrong Contact Information
- The Problem
- The Fix
- Mistake 8: Not Using Keywords from the Job Description
- The Problem
- The Fix
- Mistake 9: Including a Photo (In Most Cases)
- The Problem
- The Fix
- Mistake 10: Unexplained Employment Gaps
- The Problem
- The Fix
- Mistake 11: Vague and Generic Skills Section
- The Problem
- The Fix
- Mistake 12: Including Unnecessary Personal Information
- The Problem
- The Fix
- Mistake 13: Not Listing Certifications and Courses
- The Problem
- The Fix
- Mistake 14: Saving Your CV in the Wrong Format
- The Problem
- The Fix
- Mistake 15: Not Preparing for What Comes After the CV
- The Problem
- The Fix
- Quick Checklist: Before You Hit Send
- Frequently Asked Questions
- What's the most common CV mistake?
- How do I know if my CV has mistakes?
- Do I need a different resume for each job?
- What's the ideal number of pages for a CV?
- Should I include a photo on my CV?
- Conclusion
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
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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 sales | Increased sales by 40% within 6 months |
| Managing a team | Led a team of 15 and reduced turnover by 25% |
| Handling customers | Improved 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
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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
| Check | Status |
|---|---|
| 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:Related CV Templates
CV Template: حديث تخرج
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CV Template: مبرمج
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