Resume Optimization Cheat Sheet

Resume writing for tech roles — ATS optimization, action verbs, quantifying impact, formatting for parsing, tailoring for specific jobs, and common mistakes that .

Last Updated: May 1, 2025

ATS Optimization

ItemDescription
File FormatPDF is universally accepted. But test with a text extractor — if text can't be copied, ATS can't read it.
Keyword MatchingMirror keywords from job description. If they say 'Kubernetes' don't write 'k8s'.
No Images/ChartsATS can't read them. No columns (use standard layout). No headers/footers for key info.
Standard SectionsContact, Summary, Skills, Experience, Education. ATS expects these labels.
Font ChoiceArial, Calibri, Helvetica. No custom/script fonts. 10-12pt.
Length1 page for <10 years experience. 2 pages for 10+. No 'References available upon request.'

Action Verbs by Category

ItemDescription
LeadershipSpearheaded, Orchestrated, Championed, Directed, Established, Founded
AchievementDelivered, Achieved, Exceeded, Surpassed, Secured, Generated
InnovationDesigned, Architected, Pioneered, Engineered, Prototyped, Conceptualized
OptimizationStreamlined, Optimized, Automated, Reduced, Consolidated, Standardized
CollaborationPartnered, Facilitated, Coordinated, Aligned, Mediated, Liaised
AnalysisAnalyzed, Diagnosed, Forecasted, Modeled, Evaluated, Audited

Quantifying Impact

ItemDescription
Revenue/Cost'Increased revenue by $2.3M (15% YoY)' — always include percentage AND absolute
Efficiency'Reduced deployment time from 4 hours to 12 minutes (20x improvement)'
Scale'Scaled system from 10K to 2M daily active users with 99.9% uptime'
Team Impact'Mentored 5 junior engineers, 3 promoted within 18 months'
Code/Technical'Reduced API latency P99 from 800ms to 120ms through query optimization'
Process'Introduced code review process adopted by 8 teams, catching 40% more bugs pre-production'

Common Mistakes

ItemDescription
Objective StatementReplace with 2-line summary: 'Senior Backend Engineer with 7 years...'
Job DescriptionsDon't list duties. Write achievements. 'Managed database' → 'Optimized PostgreSQL, cut query time 60%'
'We' LanguageUse 'I'. 'We shipped...' → 'I led the team that shipped...' — owns contribution.
Technology GraveyardDon't list every tech. List what's relevant to THIS job. Tailor per application.
Education at Top (experienced)After 3+ years, education goes below experience. GPA optional after first job.
Pro Tip: Your resume has 6 seconds to impress. Lead with impact metrics: 'Increased revenue by X%' not 'Responsible for revenue growth.' ATS scans for keywords first — human reads what survives.