Your resume is often your first (and sometimes only) chance to make an impression on a potential employer. Recruiters spend just a few seconds scanning each application before deciding whether to move forward. A single error can be enough to land your resume in the rejection pile. Here are five common mistakes that could cost you the interview — and how to avoid them.
1. Using a Generic, One-Size-Fits-All Resume
One of the biggest mistakes job seekers make is sending the same resume to every employer. Recruiters can instantly tell when a resume isn’t tailored to their role. A generic summary or vague list of responsibilities shows a lack of effort and focus. Instead, customize your resume for each position by highlighting skills and achievements that directly match the job description. Use keywords from the posting to pass through applicant tracking systems (ATS) and demonstrate alignment with the company’s needs.
2. Overloading with Responsibilities Instead of Results
Employers don’t just want to know what you did — they want to know how well you did it. Many candidates fill their resumes with lists of duties that describe the role, not their impact. Replace task-based bullet points with quantifiable achievements. For example, instead of writing “Responsible for managing a sales team,” say “Led a sales team that increased revenue by 30% in six months.” Metrics and measurable outcomes make your contributions tangible and memorable.
3. Poor Formatting and Lack of Readability
Even a strong professional background can be overlooked if the resume is cluttered or difficult to read. Using inconsistent fonts, cramped layouts, or excessive graphics can make it hard for recruiters (and ATS software) to process your information. Keep your format clean and consistent. Use clear section headings, adequate spacing, and a professional font. Aim for one to two pages, depending on experience, and make sure your most relevant information appears in the top third of the document.
4. Ignoring Keywords and ATS Optimization
Most companies now use Applicant Tracking Systems to filter resumes before a human ever sees them. If your resume lacks relevant keywords, it might never make it to the recruiter’s desk. Study the job description and incorporate its specific terms — skills, tools, and certifications — naturally into your text. Avoid keyword stuffing, but ensure that your resume aligns with the language the employer uses to describe their ideal candidate.
5. Spelling, Grammar, and Typographical Errors
This one might seem basic, but it’s still among the most common deal-breakers. A single typo can suggest carelessness or a lack of attention to detail — qualities no employer wants. Always proofread multiple times, and if possible, have someone else review your resume. Tools like Grammarly or Hemingway can also help catch small errors you might miss. Presentation matters, and precision reflects professionalism.
