5 Resume Mistakes Recruiters See Most Often

Ask recruiters what makes them pass on a resume and you'll hear the same complaints over and over. The good news: none of them are about talent. They're about how the resume is written. Build your free resume and avoid these five mistakes from the start.

Why Small Mistakes Cost So Much

Popular openings can attract a large number of applications, and the first screening is usually fast. A recruiter skimming dozens of resumes is looking for reasons to keep reading, and the mistakes below give them reasons to stop.

Mistake #1: Sending the Same Generic Resume Everywhere

A software company is hiring a backend developer. The applicant sends a general "computer science graduate" resume that lists web development, mobile apps, data analysis and network administration with equal weight. The recruiter can't tell what this person is actually good at, and moves on.

Why it's a problem

A generic resume signals "I didn't put any effort into this particular application". Recruiters want to see their requirements reflected back at them.

The fix

• Rewrite your summary for each role
• Use the keywords from the job description
• Move relevant experience up, shorten what isn't relevant
• Pick the achievements that match the role

Generic: "Marketing professional with 5 years of experience in digital and traditional marketing."

Tailored (for a performance marketing role, fictional): "Digital marketer with 5 years of experience, the last 3 running paid search and paid social campaigns for e-commerce brands. Manage budgets, A/B tests and weekly reporting, which matches the data-driven campaign management your posting describes."

Mistake #2: Listing Duties Instead of Achievements

"Managed client relationships. Prepared reports. Attended meetings." Recruiters already know what the job involves. What they want to know is: what changed because you were there?

The fix

Write each bullet as action + result.

Weak:

• Managed the sales team
• Handled customer complaints
• Ran social media accounts

Strong (fictional examples):

• Led a 6-person sales team that exceeded its quarterly target three quarters in a row
• Cut average complaint resolution time from 48 hours to 12 hours by introducing a triage process
• Grew the company's LinkedIn following from 2,400 to 18,000 in six months through a weekly content series

Only use numbers you can back up. If you don't have precise figures, describe scope or concrete outcomes instead. Cvbuildly's AI rewrite tool can help you phrase bullets more strongly, but it will never add numbers you didn't provide.

Mistake #3: Typos and Inconsistencies

"Detail-oriented" in the summary, followed by "responsable for anaylsis" two lines later. For many hiring managers, that's the end of the read.

Most common errors

• Spelling mistakes in common words and, worse, in company names
• Impossible dates: "Jan 2020 – Dec 2019"
• Mixed date formats: "01/2020 – December 2021"
• Mixed fonts from copy-pasting
• Spacing errors: "Excel,Word,PowerPoint"

The fix

1. Read it three times: once for content, once for formatting, once for spelling.
2. Read it out loud: you'll catch errors your eyes skip over.
3. Get a second pair of eyes: someone else will spot what you can't.
4. Use a spell checker: your browser or word processor will catch the obvious ones.
5. Check consistency: dates, fonts, spacing, capitalization.

A resume builder helps here because the template enforces consistent fonts, spacing and date layout.

Mistake #4: Irrelevant or Outdated Information

A senior candidate's four-page resume opens with high school clubs, a first-aid certificate from college and a language course from a decade ago. The recruiter has to dig to find what matters.

What to cut

Early career:

• High school details once you have a degree
• Hobbies unrelated to the job
• Certificates that have nothing to do with the role

Experienced professionals:

• Internships from many years ago
• Entry-level jobs that don't add anything
• Obsolete technologies

Everyone (US resumes):

• Date of birth, marital status, Social Security number, photo
• "References available upon request"
• Skills you no longer use

The fix

Ask of every line: does this help me get this job? If older experience is highly relevant to the role, keep it. Otherwise, shorten it or cut it.

Mistake #5: Wrong or Unreachable Contact Details

A recruiter wants to invite a strong candidate to interview. The email bounces, the phone number has a digit missing, the LinkedIn link is broken. With other good candidates in the pipeline, they move on.

Common problems

• An old university email you no longer check
• An unprofessional address like [email protected]
• A typo in your phone number
• A LinkedIn profile you haven't updated in years
• Broken portfolio links

The fix

1. Send yourself a test email.
2. Call your number from another phone.
3. Click every link in your resume.
4. Use a simple address like [email protected].

Bonus: Quiet Red Flags

Overconfident tone

"Best in the industry" or "I will take your company to the top" reads as arrogance. Let concrete results speak instead.

Very short stints without context

If you changed jobs frequently for a good reason (contract roles, company closure, project-based work), say so briefly.

Unexplained gaps

Be honest and brief: caregiving, health, freelance work, further education. One line is enough.

Too little detail

One vague line per job isn't enough. Aim for three to five strong bullets for recent roles.

Quick Checklist

• Generic or tailored? Tailor it to the role.
• Duties or achievements? Rewrite bullets as action + result.
• Typos? Read three times, ask someone else.
• Irrelevant details? Cut what doesn't help with this job.
• Contact details working? Test every one.

Mistakes Are Normal, Leaving Them In Isn't

Everyone makes these mistakes in a first draft. The difference is fixing them before you hit "submit". Create your resume with Cvbuildly: consistent formatting is built in, the AI tools help you phrase achievements, and your data stays in your browser. For more advice, see our resume tips.

Related guides and sources

• How to write a resume: the step-by-step guide, section by section
• ATS resume guide: how applicant tracking systems read your resume
• National Careers Service: CV sections: UK government advice on what to include in a CV
• CareerOneStop: Resume guide: US Department of Labor guidance on writing a resume