📄 Resume Genie Guide

How to Write a Resume That Gets Interviews

Recruiters spend six seconds on an initial scan. Your resume needs to clear ATS filters, signal relevant experience immediately, and give a human reviewer a reason to keep reading. This guide covers every section, every formatting decision, and every common mistake — with examples for each.

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6 sec
Average recruiter screen time
75%
Resumes rejected by ATS
1–2
Pages ideal length
10+
Tailored keywords recommended

What Makes a Resume Work in 2025

Recruiters spend an average of six seconds scanning a resume before deciding whether to read further. That means your layout, headline, and first bullet point carry enormous weight. A resume that works does three things immediately: it's easy to scan, it proves value with numbers, and it passes ATS keyword filters.

Applicant Tracking Systems (ATS) screen out up to 75% of resumes before a human sees them. Your resume must be formatted in plain, parseable text — no tables, no text boxes, no graphics — and must contain the exact keywords from the job description.

How to Write a Resume: Step by Step

Seven steps. Do them in order — each sets up the next.

1

Choose the right format

Use chronological format for most roles — it's ATS-safe and recruiter-expected. Use functional format only if you're changing careers with no direct experience. Hybrid format works for 5+ year professionals pivoting slightly.

2

Write a strong summary

3–4 sentences. Lead with your title, years of experience, and one or two standout achievements. Avoid vague phrases like 'results-driven' — use numbers instead.

3

List work experience in reverse chronological order

For each role: company, title, dates (month/year), then 3–6 bullet points. Start every bullet with a strong action verb. Quantify every achievement you can.

4

Add education and certifications

List your highest degree first. Include GPA only if above 3.5 and within 3 years of graduation. Add relevant certifications — especially in tech, finance, and healthcare.

5

Build your skills section strategically

Pull keywords directly from the job description. Organize into Hard Skills and Soft Skills. Only list skills you can actually speak to in an interview.

6

Tailor for each application

Copy the job title into your summary. Mirror 5–10 keywords from the job posting. Reorder your bullets to lead with the most relevant experience.

7

Proofread and test for ATS

Read aloud to catch errors. Paste into a plain text editor — if it looks garbled, your ATS score will suffer. Use Resume Genie's free ATS Checker to verify.

Resume Summary: Good vs. Bad

Your summary is the first thing recruiters read. Here's the difference between a summary that gets ignored and one that gets callbacks.

❌ Weak Summary

Hardworking and dedicated professional with experience in marketing seeking a challenging position where I can utilize my skills to contribute to company growth.

Vague, no numbers, uses overused buzzwords, tells recruiters nothing specific.
✅ Strong Summary

Digital Marketing Manager with 6 years driving B2B demand generation. Grew inbound pipeline 140% at SaaS startup through SEO, paid social, and lifecycle email. Skilled in HubSpot, Google Ads, and marketing analytics.

Specific title, years of experience, one quantified achievement, tools mentioned.

Resume Bullet Points: Weak vs. Strong

Every bullet point should answer: what did you do, how did you do it, and what was the result?

❌ Weak bullets (before)
  • Responsible for managing social media accounts
  • Helped increase sales
  • Worked on team projects
  • Duties included customer service
  • Assisted with marketing campaigns
✅ Strong bullets (after)
  • Grew Instagram following 280% in 6 months through daily Reels strategy
  • Closed $420K in new ARR as top-performing SDR in Q3 2023
  • Led 4-person agile team delivering CRM integration 2 weeks ahead of schedule
  • Maintained 4.9/5 CSAT score across 200+ monthly support tickets
  • Executed 12-email nurture sequence generating 34% open rate (2× industry avg)

ATS Formatting Rules (Never Break These)

Resume Format Comparison

Which resume format is right for you?

FormatBest ForATS-SafeRecruiter Preference
ChronologicalMost job seekers with consistent history✅ Yes⭐⭐⭐ High
FunctionalCareer changers, long gaps⚠️ Partial⭐ Low
Hybrid/CombinationSenior professionals, career pivots✅ Yes⭐⭐ Medium
TargetedAny — tailored to one job✅ Yes⭐⭐⭐ Highest
💡
Pro Tip: Mirror the Job Description

Copy and paste the job description into a word cloud tool. The largest words are the keywords you must include. Recruiters and ATS systems both scan for these exact phrases.

Resume Formatting Specifications (Exact Numbers)

Exact numbers — copy these directly into your template:

ElementRecommended SettingWhy It Matters
Body fontCalibri 10.5pt or Arial 10ptATS-safe, highly readable at small sizes
Name fontAny readable font, 16–20pt boldCreates visual hierarchy instantly
Section headers11–12pt bold, same font as bodyScannable without being decorative
Margins0.5–0.75 inches on all sidesGains space vs. 1-inch default without looking cramped
Line spacing1.0–1.15 within sectionsMaximizes content density while staying readable
Space between sections6–8pt paragraph spacingSeparates sections without large gaps
File format.docx or text-based PDFImage PDFs and .pages files break ATS parsing
File nameFirstLast_Resume_CompanyName.pdfProfessional and searchable in recruiter inboxes
Page count1 page (0–10 yrs) / 2 pages (10+ yrs)Match experience level to length
Color useBlack text; one accent color maxKeep primary text black — ATS reads it more reliably

What a Strong Resume Looks Like — Complete Example

Strong resume vs. weak resume — same candidate, same six years of experience:

✅ Complete resume example — Marketing Manager, 6 years experience

SARAH CHEN | sarah.chen@gmail.com | (415) 555-0192 | San Francisco, CA | linkedin.com/in/sarahchen PROFESSIONAL SUMMARY Demand generation marketer with 6 years driving B2B pipeline for SaaS companies (50–500 employees). Grew inbound revenue from $0 to $2.1M at a 60-person startup through HubSpot workflows, LinkedIn Ads, and SEO. Skilled in full-funnel attribution and sales-marketing alignment. WORK EXPERIENCE Senior Marketing Manager | CloudBase Inc, San Francisco, CA | Jan 2021–Present • Built inbound demand engine generating $1.4M in attributed pipeline in year one • Managed $320K annual paid media budget across Google, LinkedIn, and Meta — 3.2× ROAS • Hired and mentored 2 marketing coordinators; reduced contractor spend 40% • Launched 6-touch email nurture sequence achieving 34% open rate (industry avg: 21%) Marketing Manager | DevFlow, Remote | Mar 2019–Dec 2020 • Grew organic traffic 280% in 18 months through technical SEO and content program • Partnered with sales to create 12 battle cards adopted across 15-rep team • Produced quarterly webinars averaging 340 registrants and 28% close rate Marketing Coordinator | Bright Digital, San Francisco, CA | Jun 2018–Feb 2019 • Managed social media calendar across 5 platforms; grew LinkedIn following 140% • Coordinated 8 trade show appearances; managed $45K event budget EDUCATION BS Marketing | San Francisco State University | 2018 SKILLS Marketing Platforms: HubSpot (Certified) · Marketo · Salesforce · Google Ads · LinkedIn Ads Analytics: Google Analytics 4 · Mixpanel · Tableau · A/B Testing · Attribution Modeling Methodologies: Demand Generation · SEO/SEM · Account-Based Marketing · Content Strategy

Single column, plain text, no graphics. Every bullet has a number. Summary uses exact platform names ATS scans for. This is what 'ATS-optimized' actually looks like.
❌ Common resume — what most people submit (weak)

SARAH CHEN OBJECTIVE: Seeking a challenging marketing position where I can utilize my skills. WORK EXPERIENCE Senior Marketing Manager | CloudBase | 2021–Present • Responsible for managing marketing campaigns • Helped grow the business through various marketing initiatives • Managed team and budget • Worked on social media and email Marketing Manager | DevFlow | 2019–2020 • Did marketing for a software company • Worked on SEO SKILLS: Communication, teamwork, Microsoft Office, social media

Objective instead of summary. Bullets with no metrics. 'Responsible for' and 'helped.' Skills that could describe any applicant. ATS scores this near zero for any specific role.

Resume Writing Mistakes to Avoid

📏
Wrong length

1 page for under 10 years of experience. 2 pages for senior roles. Never 3+ pages for private sector jobs.

📧
Unprofessional email

Use firstname.lastname@gmail.com. Recruiters discard resumes from party2003@hotmail.com.

🔢
No numbers

Quantify everything possible. Not 'managed a team' — 'managed a team of 8 engineers across 3 time zones.'

🎯
Generic resume

One resume sent to 50 jobs rarely works. Tailoring takes 10 minutes and dramatically increases response rates.

🚫
Including a photo

Photos are not standard in the US, UK, Canada, or Australia. They create bias risk and waste valuable space.

📅
Including 'References available'

This line is outdated and wastes a line. Recruiters know you have references.

Frequently Asked Questions

How long should my resume be?
One page for under 10 years of experience. Two pages for senior or highly technical roles. Never more than two pages for most private-sector positions. Academic CVs are the exception — they can be much longer.
Should I include a photo on my resume?
No, for US, UK, Canada, and Australia job markets. Photos are not standard and can introduce unconscious bias. The exception is certain European countries or acting/modeling roles where appearance is directly relevant.
What's the best resume format?
Chronological format (work experience listed most-recent-first) is the safest choice for most job seekers. It's what recruiters expect and what ATS systems parse most accurately. Only use functional format if you have very unusual circumstances.
How do I explain a gap in my resume?
Brief, confident, and forward-looking. In your cover letter, mention what you did during the gap (caregiving, freelancing, education, health recovery). On the resume itself, use years instead of months for dates to reduce the visual impact of short gaps.
Do I need a cover letter?
Include one unless the application explicitly says not to. A cover letter addresses gaps, explains a pivot, and shows genuine interest in this specific role — none of which a resume can do alone. The candidates who skip it are competing only on credentials.
What skills should I put on my resume?
List technical skills specific to the role — software, tools, certifications, methodologies. Pull keywords verbatim from the job description: that's your ATS optimization and your tailoring in one step. Limit soft skills to two you can prove with bullets in your experience section.
What font and size should I use for my resume?
Use Calibri, Arial, Georgia, or Garamond at 10–11pt for body text and 12–14pt for section headers. Your name should be 16–20pt. Never go below 10pt — unreadable resumes get discarded. Margins should be 0.5–0.75 inches on all sides.
What should a resume look like in 2025?
Clean single-column layout, 10–11pt body font, your name in bold at the top, followed by contact info, then a 3-sentence summary, work experience in reverse-chronological order, skills, and education. No graphics, no tables, no columns — ATS systems can't read them.

Put These Tips into Action

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