Barsha Maity

Posted on Aug 1

🎯I Reviewed 100 Developer Resumes—Here Are the 10 Mistakes I Saw Most Often👀

Okay so I said I'd never do this publicly but here we are.

I spent the last few weeks going through 100 developer resumes — juniors, freshers, career switchers, all of it. And by resume #20 I already knew I'd be writing this post. By resume #60 I was genuinely a little sad. 😅

Same mistakes. Over. And over. And over again.

The problem nobody talks about

Here's the thing about resumes: nobody teaches you how to write one. Not really. You learn to code, you grind LeetCode, you build projects at 2am fueled by instant noodles — and then you're expected to just know how to compress all of that into one page that gets you past a recruiter who spends 6 seconds on your resume.

Six. Seconds. ⏱️

So people copy a template off Google, stuff it with buzzwords, and hope for the best. It's not your fault. But it IS fixable. Let's get into it. 👇

The 10 mistakes I saw the most 🔥

1. "Responsible for developing web applications"

This tells me nothing. What did you build? What broke? What did YOU specifically do?

Wrong:

Responsible for developing web applications using React.

Right:

Built a React dashboard that cut page load time by 40% by lazy-loading routes and memoizing expensive components.

See the difference? One is a job description. The other is a story with a number in it.

2. Zero metrics, anywhere 📊

You don't need to have "saved the company $2 million" to use numbers. Even small stuff counts:
-Reduced API response time from 800ms to 200ms
-Wrote tests that took coverage from 40% → 85%
-Onboarded 3 new devs onto the codebase

Numbers make recruiters trust you. Vague adjectives don't.

3. Listing every language and framework you've ever touched 🧃

I saw resumes with 27 technologies listed. Bro. I know you don't remember COBOL from that one college elective.

Keep your skills section to what you can actually talk about in an interview without sweating.

4. GitHub links that lead to... nothing 🔗

This one hurt. So many resumes had a GitHub link, and when I clicked it:
-Empty repos
-Forked tutorials with zero changes
-A "Hello World" from 2021 and nothing since

If you're going to link it, curate it. Pin your 3 best projects. Make the README actually explain what the project does.

5. No proof of code quality 🧑‍💻

Recruiters (and engineers reviewing resumes) love seeing actual code snippets or clean commit messages. Here's an example of the kind of small code snapshot that says "this person writes clean code" way more than any bullet point can:

// Before: no error handling, hard to read
function getUser(id) {
  return fetch('/api/users/' + id).then(res => res.json());
}

// After: clear intent, handles failure
async function getUser(id) {
  try {
    const res = await fetch(`/api/users/${id}`);
    if (!res.ok) throw new Error(`User fetch failed: ${res.status}`);
    return await res.json();
  } catch (err) {
    console.error('getUser error:', err);
    return null;
  }
}

Even a two-line snippet like this on a portfolio site or README shows judgment. That's what gets remembered.

6. Objective statements from 2009 🕰️

"Seeking a challenging position where I can utilize my skills and grow professionally."

Delete this. Immediately. Nobody reads this and thinks "wow, hire them." It says nothing about YOU.

7. Formatting chaos 🎨

Five different fonts. Random colors. A photo in the corner (please don't, unless it's standard practice in your country). Recruiters scan resumes through Applicant Tracking Systems (ATS) — fancy formatting can literally break the parsing and your resume gets rejected before a human even sees it.

8. Projects with no "why" 🤔

"Built a to-do app using React" — cool, so did 2 million bootcamp grads.

What made YOUR version different? What problem were you actually solving? Even a tiny twist (offline sync, a weird UI challenge, a performance constraint) makes it memorable.

9. No soft-skill evidence, all soft-skill claims 🗣️

Writing "great communicator" and "team player" means nothing without proof. Instead:

Led a 3-person team through a sprint after our senior dev left mid-project, kept us on schedule for the release.

That's communication AND leadership, shown, not claimed.

10. One resume for every job 📄

Sending the exact same resume to a backend role and a frontend role and a full-stack role. Tailor it. Even 10 minutes of adjusting keywords to match the job description makes a real difference with ATS systems and human reviewers alike.

So what do you actually DO about all this? ✅

Quick action list, no fluff:

Rewrite every bullet as: action + tool + result. "Built X using Y which caused Z."
Cut your skills list to what you can defend in an interview. Quality over quantity.
Clean up your GitHub before you apply anywhere. Pin 3 solid projects, write real READMEs.
Add 1-2 tiny code snippets or links to specific PRs/commits that show your thinking, not just your output.
Kill the objective statement. Replace with a 2-line summary that's specific to YOU.
Use a simple, ATS-friendly format. One font. No tables, no columns if you can avoid it.
Tailor your resume per role. Yes, every time. It's annoying. It works.

Final thoughts 💭

Honestly, going through 100 of these made me realize most people aren't bad developers — they're just bad at translating what they've done into something a stranger can understand in 6 seconds.

Your resume isn't your life story. It's a highlight reel. Cut the noise, keep the receipts (the numbers, the links, the proof), and let your actual work speak.

FAQs 🙋

Q: Should my resume be one page or can it be two?
One page if you're a fresher or have under 3-4 years of experience. Two pages max after that, and only if every line earns its spot.

Q: Do personal projects actually matter if I don't have work experience?
Yes, a lot. A well-documented project with a clear "why" can matter more than a vague internship line.

Q: Should I include a summary/objective at the top?
A short 2-line summary, yes. A generic "objective statement," no.

Q: How many projects should I list?
2-3 strong ones beat 6 mediocre ones. Depth over breadth.

Q: What if I don't have impressive metrics yet?
Use what you have — even "reduced load time," "improved test coverage," or "cut manual steps from 5 to 2" counts. Small, honest numbers still beat vague adjectives.

You've probably built more than you're giving yourself credit for. Go show it properly. 🙌

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