How to tailor your resume to a job ad: find the missing keywords and fix what an ATS cannot read
Sending the same resume to every job is the most common reason good candidates are filtered out early. Tailoring does not mean rewriting your history; it means making sure the skills you do have are visible in the words the employer used, in a file their system can read.
1. Read the ad like a parser
Split the ad into Requirements and Nice to have. Requirements carry the weight: hard skills (tools, languages, certifications), the job title and the level. Nice-to-haves break ties. Note the exact words: "PostgreSQL" and "Postgres", "JavaScript" and "JS" mean the same to a person, but your resume should use the employer's form at least once.
2. Compare and list what is missing
For each requirement, find where your resume shows it. What remains is your gap list. Be honest with it:
- If you have the skill, add it where it was used, in a bullet with a result.
- If you do not have it, leave it out. Keyword-stuffing is easy to spot in an interview.
Tailorwren automates this step: paste the ad and upload your resume, and you get a score from 0 to 100 made of seven parts, plus the missing keywords weighted by where they appear in the ad. The same inputs always give the same score.
| Part | Points |
|---|---|
| Hard skills the ad asks for | 50 |
| Other keywords from the ad | 15 |
| Job title | 10 |
| Sections | 8 |
| Numbers in bullets | 7 |
| Contact details | 5 |
| Length | 5 |
Check your resume against a job ad (3 free scans a day)
3. Make the file readable
Applicant tracking systems read text, not design. The two problems Tailorwren's parse check flags:
- Image-only PDFs (a scan, or a resume exported as a picture): there is no text to read at all.
- Two-column layouts: many parsers read straight across the page and mix the columns into nonsense.
Use one column, standard section headings (Experience, Education, Skills), real text, and dates in a consistent format.
4. Rewrite bullets around results, with your own facts
A strong bullet is action + what you did + a measurable result, using the ad's words where they are true: "Cut monthly AWS spend 18% by moving batch jobs to spot instances" beats "Responsible for cloud costs". If you use an AI rewriter, check that every number came from you. Tailorwren's AI rewrites may only use facts already in your bullet, and any rewrite that adds a number you did not have is thrown away.
Cost
Three scans a day are free, with the top 10 missing keywords and two AI rewrites. Pro is $12 a month, $29 for three months or $49 once, with unlimited scans, the full keyword list, cover-letter drafts and an ATS-safe PDF. For comparison (read 1 Oct 2026): SkillSyncer $14.95 a month, Kickresume $24, Rezi $29 a month or $149 lifetime.
No tool can promise you get past a particular employer's system; what it can do is show you, before you apply, what the ad asks for that your resume does not show.