Interview Preparation

Resume Roasting: Common Mistakes Engineers Make

CodeSwiftr Team

Resume Roasting: Common Mistakes Engineers Make

Your resume is not a biography. It is a marketing document.

I have reviewed hundreds of engineering resumes. 90% of them make the same mistakes.

Recruiters spend 6 seconds looking at your resume. If they don't see what they need, you go to the "No" pile.

Here is how to fix it.

Mistake 1: The "Skill Soup"

Listing 50 technologies in a block of text.

  • Bad: "Java, C++, Python, React, Angular, Vue, AWS, Azure, GCP, Docker, Kubernetes, Jenkins, Git, SVN, Mercurial..."
  • Why: It looks like you just listed every buzzword you've ever heard of. It dilutes your actual expertise.
  • Fix: Categorize and Curate.

* Languages: Python (Expert), JavaScript (Proficient)

* Frameworks: React, Django

* Tools: Docker, AWS

Mistake 2: Responsibility vs. Impact

Listing what you did instead of what you achieved.

  • Bad: "Responsible for building the payment API."
  • Good: "Built the payment API, processing $1M/day in transactions and reducing latency by 20%."
  • The Formula: Accomplished [X] as measured by [Y] by doing [Z].

Mistake 3: The "Wall of Text" Summary

Nobody reads your 4-paragraph objective statement.

  • Fix: Delete it. Or replace it with a 1-sentence "Summary": "Senior Backend Engineer with 7 years of experience scaling high-traffic systems in FinTech."

Mistake 4: Ignoring the ATS (Applicant Tracking System)

Formatting your resume with fancy columns, icons, and graphics.

  • Why: The ATS robot can't parse it. It sees a garbled mess.
  • Fix: Use a standard, single-column layout. Use standard headings ("Experience", "Education"). Keep it simple.

Mistake 5: Including Irrelevant History

You don't need to list your internship from 2012 if you are a Senior Engineer. You don't need to list your job as a barista.

  • Fix: Focus on the last 5-7 years. Summarize or omit the rest.

Conclusion

Your resume has one job: Get you the interview. Once you have the interview, the resume doesn't matter anymore. Optimize for that first "Yes."

Does your resume pass the test?

Once you fix your resume, you need to be ready to back it up. Every bullet point is fair game for an interviewer to drill down on. Use our Interview Simulator to practice explaining your past projects clearly and concisely.

Ready to practice for your next interview? Interview Simulator gives you AI-powered feedback on your responses — behavioral, technical, and system design. Start with 3 free practice interviews today.

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Master the most common coding interview patterns to ace your technical rounds.

For technical interview preparation, our system design guide is essential reading.

Don't neglect behavioral preparation — see our behavioral interview guide.

Your resume is the first impression — get it right with our resume guide.

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