The difference between a resume that gets callbacks and one that doesn't is rarely the structure or the template — it's the bullets. Specifically, the verbs, the named tools, and the numbers. We've worked with thousands of student resumes and the same 4–5 weaknesses appear in 90% of them. This post is 30 real bullets, shown in before-and-after pairs, with notes on what changed.
Each bullet is drawn from work we've actually seen — anonymized and lightly edited. The patterns repeat across roles, which is why the principles transfer.
Important — these are illustrative, not copy-paste. The specific numbers, institution names, and outcomes in the "after" bullets below are from anonymized real cases and are shown to teach the pattern. Do not copy the metrics or named institutions into your own resume. Substitute your own real numbers and your own real employers / labs / universities. Putting someone else's numbers on your resume is fabrication and will not survive an interview.
The pattern across all 30
Before reading the examples, here's what every "after" bullet shares — and what every "before" bullet is missing:
| Component | Weak version (before) | Strong version (after) |
|---|---|---|
| Verb | helped, worked on, assisted with | built, designed, wrote, deployed, resolved |
| Tools / methods named | "data tools," "software" | Python, Tableau, Epic, Mailchimp, Jest |
| Scale or scope | unspecified | "12M-row event log," "4-patient assignment" |
| Result | "improved efficiency" | "lifted D7 retention by 4 points" |
| Word count | bloated by setup phrases | tighter — same content, fewer filler words |
If you read nothing else in this post: the 30 examples are all the same exercise. Replace the vague verb. Name the tools. Put a real number on the result.
Software engineering and CS
1. Backend development
❌ Worked on the backend team and helped with various tasks throughout the summer.
✅ Built a Postgres-backed feature flag service in TypeScript and Node.js, replacing a hand-rolled YAML system; reduced rollout time from days to under an hour for the 4 product teams using it.
Replaced "worked on" with "built." Named the stack. Quantified rollout time and team count.
2. Frontend bugs
❌ Helped fix bugs and improve the codebase.
✅ Resolved 12 issues across the React component library, including a memo-leak in the table virtualization that was paging out users with 5K+ rows.
Specific count of issues. Named the framework. Surfaced a specific bug with user impact.
3. Testing
❌ Wrote unit tests and improved code coverage.
✅ Wrote 60+ unit tests in Jest covering the auth and billing flows; lifted coverage from 41% to 78% on the modules touching production payments.
Test framework named. Coverage delta is the headline. Production-critical context added.
4. Code review
❌ Participated in code reviews with the team.
✅ Reviewed 80+ pull requests across a 6-engineer team; flagged 3 production-blocking issues, including a race condition in the cache invalidation path.
Volume + team size + specific catches. "Participated" doesn't commit to anything; "reviewed" + "flagged" do.
5. Open source
❌ Contributed to open source projects in my free time.
✅ Merged 4 PRs into the React Aria component library, including 2 accessibility fixes for screen-reader navigation in the date picker.
Specific repo. Specific count. Specific category of contribution. The accessibility detail signals depth.
For more software engineering bullet examples and role-specific guidance, see the Software Engineer Intern resume guide.
Data and analytics
6. Data analysis
❌ Analyzed user data and provided insights to the marketing team.
✅ Wrote SQL queries against a 12M-row event log to identify the top 3 onboarding drop-off points; the marketing team rebuilt the welcome email sequence around the findings, lifting D7 retention by 4 points.
Dataset scale. Specific finding. Business action taken. Metric movement.
7. Dashboards
❌ Built dashboards in Tableau for the team.
✅ Built 6 Tableau dashboards covering subscription cohorts, MRR movement, and churn — adopted as the weekly review artifact by the 12-person product team.
Number of dashboards, what they covered, and (critically) who actually used them.
8. Python pipelines
❌ Used Python to clean and process data.
✅ Wrote a pandas pipeline that cleaned and joined 4 disparate CSV exports (3.2M rows total) into a unified analytics table; cut a recurring 6-hour manual process to a 12-minute scheduled job.
Library named. Data scale. Time saved.
9. A/B testing
❌ Helped design A/B tests.
✅ Designed and ran 3 A/B tests on the checkout flow, including a price-anchor experiment that lifted average order value by $14 across 22K test users.
Specific count. Specific experiment type. Result with sample size.
10. Reporting
❌ Created weekly reports.
✅ Built a Looker-based weekly metrics report distributed to 40 stakeholders; replaced a manual deck previously assembled by the head of analytics.
Tool named. Distribution scope. Workload it eliminated.
For more data analyst bullet examples, see the Data Analyst Intern resume guide.
Marketing and content
11. Social media
❌ Helped run social media for the company's accounts.
✅ Owned the Instagram and TikTok accounts during a 12-week summer; published 4 posts/week, grew the combined following from 8.2K to 14.6K, and produced the highest-performing video in the brand's history (1.1M views).
"Owned" instead of "helped." Cadence. Growth delta. Standout achievement.
12. Email
❌ Wrote email newsletters and sent them to the list.
✅ Wrote and sent 8 weekly Mailchimp newsletters to a 24K-person list; A/B tested subject lines and lifted average open rate from 18% to 26% over the internship.
Channel by name. List size. Cadence. Specific tactic. Metric movement.
13. Content
❌ Created content for the marketing team's blog.
✅ Wrote 6 long-form blog posts on product launches and customer interviews; 2 ranked on page 1 of Google for branded queries within 60 days, driving an estimated 1.4K incremental monthly visitors.
Output count and category. SEO outcome. Traffic estimate.
14. Paid ads
❌ Helped manage paid social campaigns.
✅ Managed a $14K monthly Meta Ads budget across 4 campaigns; lowered cost-per-lead from $42 to $28 over 6 weeks through audience-segmentation testing.
Budget scope. Campaign count. Specific KPI movement. Method named.
15. Brand
❌ Worked on branding and creative projects.
✅ Designed the visual identity for a Q3 product launch (logo refresh + 12 social templates); shipped on a 3-week deadline coordinating with the founder and head of design.
"Designed" instead of "worked on." Specific deliverables. Timeline. Stakeholders.
For more marketing bullet examples, see the Marketing Intern resume guide.
Nursing and healthcare
16. Clinical rotation
❌ Worked on the med-surg floor and helped take care of patients.
✅ Completed a 180-hour med-surg rotation at a 320-bed regional hospital; carried a 4-patient daily assignment under preceptor supervision, including post-op recovery, IV antibiotic administration via Alaris pumps, and discharge teaching on anticoagulant medications.
Hours, hospital scale, assignment size, three named clinical tasks.
17. EHR documentation
❌ Used Epic to chart patient information.
✅ Documented assessments, MAR pass-throughs, and shift hand-offs in Epic for a 4-6 patient daily assignment; flagged 2 medication reconciliation discrepancies to the preceptor that prevented administration errors.
Epic by name. Specific workflows. Assignment size. Real outcome (caught errors).
18. Volunteer hours
❌ Volunteered at the hospital before nursing school.
✅ Served as a Patient Care Volunteer at [Major Academic Medical Center] (8 hrs/week, 18 months), assisting nurses with patient transport, vitals retrieval, and family communication on a 32-bed cardiac telemetry unit.
Hours, duration, specific tasks, unit type and size.
19. Research participation
❌ Helped with a nursing research project.
✅ Co-collected pain assessment data on 87 post-surgical patients for an evidence-based practice study on opioid alternatives; presented preliminary findings at the school's spring nursing research symposium.
Sample size. Topic specificity. Output (presentation venue).
For more nursing-focused bullet examples, see the Nursing Student resume guide.
Research and academic
20. Wet lab
❌ Helped with experiments in a biology lab.
✅ Performed 90+ Western blots and 60+ qPCR assays investigating ERK/MAPK signaling in a CRISPR-edited HeLa cell line panel; data contributed to the lab's manuscript currently in revision at a peer-reviewed cell biology journal.
Method counts. Biological pathway. Model system. Publication outcome.
21. Statistical analysis
❌ Used R for data analysis.
✅ Wrote R scripts (tidyverse + lme4) to fit mixed-effects models on a 412-subject longitudinal cognitive aging dataset; results were the foundation of a poster I co-presented at a national neuroscience conference.
R packages named. Specific model class. Sample size. Conference output.
22. Behavioral experiments
❌ Ran behavioral experiments with participants.
✅ Recruited and ran 78 undergraduate participants through a 45-minute behavioral economics protocol in PsychoPy; coded the data into REDCap and ran preliminary analyses in R.
Participant count, session length, software stack, downstream analysis.
23. Literature review
❌ Conducted a literature review for the lab.
✅ Synthesized 64 papers on pediatric anxiety interventions for a meta-analysis manuscript; built and maintained the Covidence-based screening database.
Paper count. Topic. Tool used. Output.
For more research bullet examples, see the Research Assistant resume guide.
Customer service and retail
24. Café work
❌ Worked at a coffee shop and helped customers.
✅ Served 80-120 customers per shift at a high-volume café (12 months, weekends and evenings); handled cash and card transactions on Square POS, resolved drink remakes and refund requests on the spot, and was promoted to shift lead after 7 months.
Shift volume, duration, specific systems and tasks, the promotion as a tenure signal.
25. Phone helpline
❌ Volunteered with a nonprofit answering questions from people who called in.
✅ Volunteered as a phone helpline responder for [Org Name] (4 hrs/week, 8 months); handled an average of 12 inbound calls per shift, logged interactions in a Google Sheets-based CRM, and de-escalated 3 high-stress calls during the shift, including 1 that required transfer to a clinical supervisor.
Cadence, duration, call volume, system used, real de-escalation example.
26. Family business
❌ Helped my parents at their family business.
✅ Worked weekends at a family-owned dry cleaning business for 18 months; greeted walk-in customers, processed orders on the POS system, handled cash drawer reconciliation at end-of-day, and resolved garment-loss complaints in person with same-day follow-up.
Family work counts. Concrete tasks, end-of-day responsibility, complaint type handled.
For more entry-level customer service bullet examples, see the Customer Service Resume (No Experience) guide.
Teaching and education
27. TA work
❌ Worked as a TA for an intro biology class.
✅ TA for BIO 101: Introduction to Biology (200-student lecture); led 2 weekly discussion sections of 25 students each, graded 8 problem sets and 2 midterms across the semester (~600 graded artifacts total), held 4 office hours/week with average attendance of 12 students.
Course code and size, section count, exact grading volume, office-hour attendance.
28. Office hours
❌ Held office hours and answered student questions.
✅ Held 5 weekly office hours for the CS 162 (Operating Systems) project track; built a shared FAQ document of the 30 most-common debugging issues that the head TA adopted as standard course material the following semester.
Hours, course, specific contribution that lasted past the semester.
For more teaching bullet examples, see the Teaching Assistant resume guide.
Bullets to drop entirely
Some bullets are weak in a way no rewrite can fix. The right move is to delete them.
29. The "Agile" filler
❌ Worked with the team using Agile methodology.
✅ (Drop entirely.)
Every team uses something they call Agile. The bullet adds nothing unless you specifically led standups, ran retros, or shipped in two-week cadences. If you didn't do something nameable, delete the line.
30. The "stakeholder" filler
❌ Worked with cross-functional teams on various initiatives.
✅ (Drop entirely.)
"Cross-functional" without naming the functions and "various initiatives" without naming the initiatives are filler. If you ran a project across product, engineering, and legal, name them. If you didn't run anything specific, replace this with a bullet that describes one concrete deliverable.
Quick rewriting checklist
Before you finalize a bullet, run it through this 5-question check:
- Did I replace "helped/worked on/assisted with" with a specific action verb?
- Did I name the tools, methods, or technologies? (Python, Epic, Mailchimp, Tableau, etc.)
- Did I include a real number? (count, scale, time, dollars, users — not invented)
- Is the bullet under 35 words? (longer often signals padding)
- Could I answer follow-up questions about every claim in this bullet during an interview?
If yes to all five, ship the bullet. If no to any, fix it before submission.
Where to take this from here
The 30 examples above transfer across most entry-level resume work. For role-specific guidance with more examples in your field:
- Software Engineer Intern resume guide
- Data Analyst Intern resume guide
- Marketing Intern resume guide
- Nursing Student resume guide
- Research Assistant resume guide
- Teaching Assistant resume guide
- Business Analyst resume guide
- Customer Service (No Experience) resume guide
For the framework that produces the strongest bullets in interviews and on the page, see What is the STAR method?. For the JD-tailoring workflow that adapts these bullets to specific job descriptions, see How to tailor your resume.
Or paste your resume and a JD into our free tailoring tool — you'll get the same kind of rewrites generated in about two minutes, without inventing any numbers or skills you didn't list.