How applicant tracking systems read your resume
An applicant tracking system (ATS) parses your resume into fields — titles, employers, dates, skills — and lets recruiters search and filter. Fancy layouts, columns, icons and text inside images often break that parsing, so your experience may simply disappear.
- Use a single-column layout with standard section headings.
- Save as PDF unless the posting asks for DOCX.
- Put skills in plain text, not logos or progress bars.
- Use the job title wording recruiters search for, when it is accurate.
What recruiters scan in the first ten seconds
- Current title and level.
- Recent employers and how long you stayed.
- Core stack relevant to the role.
- One or two numbers that show impact.
Bullets that show impact
Replace duties with outcomes. A strong bullet follows the pattern: action, what you built or changed, and the measurable result.
| Weak | Strong |
|---|---|
| Worked on the payments service | Rebuilt payment retries with idempotency keys, cutting duplicate charges to zero and failed payments by 18% |
| Responsible for CI/CD | Cut CI time from 25 to 8 minutes by parallelizing tests and caching builds for 40 engineers |
| Built React components | Shipped a design-system table used by 12 teams, reducing UI bugs reported per release by a third |
Every claim must be true and explainable. Interviewers will ask you to walk through it.
Adjusting for your level
- Juniors: lead with projects, internships and the engineering decisions you made.
- Mid-level: show ownership of features end to end.
- Senior and staff: show scope — systems, teams and decisions that affected others.
- Career switchers: connect your previous domain to the roles you target.
Frequently asked questions
Should my resume be one page?
One page for up to about 7 years of experience; two pages is fine for senior and staff engineers with relevant depth.
Should I tailor my resume for each job?
Tailor the summary and the order of bullets and skills for each role type. Two or three well-built variants cover most searches.
