A free ATS resume check for developers, with the rules shown

By , founder of ResumeForDev · Updated

Short answer

You can check a developer resume for free against seven rules: a complete header (8 points), standard sections with dates (12), numbers in at least 60% of bullets (25), bullets that start with an action verb and avoid filler (20), a grouped skills list of 8–30 items that the bullets back up (10), a full but not overflowing single page (10), and coverage of the keywords for your target role or job post (15). These are the exact rules behind ResumeForDev's ATS score, which is plain code rather than an AI guess, so the same resume always gets the same score. Upload your resume to the free ATS checker for a score with no sign-up, or let ResumeForDev build a new one with the score running live.

Key points

  • Most “ATS checkers” don't say how they score. This one lists every rule and its points.
  • Impact (numbers in bullets) and writing quality are 45 of the 100 points.
  • You can run the whole checklist by hand in about ten minutes.
  • No real ATS gives you a single universal score; treat any score as a checklist.

The seven rules and their points

How ResumeForDev's ATS score is calculated (100 points)
RulePointsFull marks when
Contact and header8Name, email, phone, LinkedIn, and GitHub or a portfolio link are all present
Structure12Experience or projects, education and skills sections exist; every role and degree has dates; every role has a location; no entry is empty
Impact and metrics2560%+ of bullets carry a number (users, requests, %, time, $), and every role and project has at least one
Writing quality20Bullets start with an action verb, run 12–42 words, avoid filler (“leveraged”, “responsible for”) and first person, and read as sentences rather than keyword lists
Skills section108–30 skills in two or more groups, with at least half of them also appearing in your bullets
One-page length10The resume fills most of one page without spilling over, and no entry has more than 5 bullets
Keyword coverage15The resume mentions 70% of the tools and skills named in the job post, or 65% of the expected vocabulary for your target role when there is no post

Check your resume by hand in ten minutes

  1. Header: confirm name, email, phone, LinkedIn and GitHub (or a site) are all there as plain text, not icons.
  2. Sections: use the standard names (Experience, Projects, Education, Technical Skills). Check that every job and degree has dates.
  3. Count your numbers: go bullet by bullet and mark the ones with a figure in them. Aim for six out of ten or more, and at least one in every job and project. See how to find the numbers.
  4. First words: every bullet should start with a past-tense verb (Built, Reduced, Migrated). Delete “Responsible for”, “Worked on” and “Helped with”.
  5. Length: flag bullets under about 12 words (too thin) or over about 40 (split them).
  6. Skills: count them. Between 8 and 30, grouped by type, and most should show up in a bullet too.
  7. Keywords: copy the job post, highlight every tool and skill it names, and check which ones appear in your resume. Add the ones you've actually used. See how to tailor a resume.
  8. Parsing: paste your PDF's text into a plain text editor. If the order is scrambled or words are missing, a parser will have the same problem. More in what makes a resume ATS-friendly.

Common reasons developer resumes score low

  • Bullets that describe duties, not results. This alone can cost most of the 25 impact points.
  • A skills list nothing backs up. Twenty tools in the list, none of them in a bullet.
  • Keyword-pile bullets. “React, Node, AWS, Docker, CI/CD” is a list, not a bullet, and the score treats it that way.
  • Two pages for two years of experience. Cut older or weaker bullets until it fits.
  • Two-column or graphic templates that read out of order when parsed.

Getting the score from ResumeForDev

There are two ways. To score the resume you have now, upload it to the free ATS resume checker: no sign-up, nothing stored, 5 checks a day, and an optional job post for keyword gaps. To improve it, import it (.pdf or .docx) or a LinkedIn export into the builder; it asks follow-up questions, rewrites the bullets from your answers, and shows the score with every category's points, updating live as you edit. Your first resume, its score, the keyword check and the PDF export are free, with no card.

Because the score is code, not a model's opinion, a higher number means a rule was actually met. It also means it can be gamed, like any checklist. A number in every bullet only helps if the numbers are true, which is why ResumeForDev removes any figure you never gave it.

Frequently asked questions

Is there a free ATS resume checker for software engineers?
Yes. ResumeForDev's ATS checker is free with no sign-up: upload a resume and get a score out of 100 from these seven rules, with the reason for every lost point. You can also apply the rules by hand.
What is a good ATS score for a developer resume?
Scores mean different things in different tools, so compare like with like. With ResumeForDev's rules, a resume that meets every rule scores 100. In practice, the biggest gains usually come from adding numbers to bullets and covering the job post's keywords.
Do ATS checkers use AI to score resumes?
Some do, which is why the same resume can get different scores on different runs. ResumeForDev's score is deterministic code: same resume, same score, with every point explained.
Will a high ATS score get me interviews?
It makes your resume easier to parse and search, and the rules match what recruiters skim for. It can't make up for a poor fit with the role, so tailor each application to the job post.

One page, every line yours.

Answer a few questions about what you built. ResumeForDev asks follow-ups, writes the bullets, and never adds a number you didn't give it. Your first resume is free.

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