Job application guide
Résumés, Cover Letters, Interviews & AI Tools
A practical walkthrough of the four parts of a job application, with free resources for each. Built to pair with the Career Paths page: once you know the role you’re targeting, this is how you apply for it.
Résumés
A résumé's job is to earn an interview, not to tell your whole story. Most recruiters spend under a minute on a first read, so the top third of the page carries the most weight.
Lead with results, not duties
- Start bullets with an action verb and end with a measurable outcome: "cut report preparation time by 40%" reads stronger than "responsible for reports."
- Numbers can be counts, percentages, dollars, time saved, or people supported — any honest measure works.
Tailor it to each posting
- Mirror the exact skills and terms the job posting uses, especially for roles screened by applicant tracking systems.
- Keep a master résumé with everything, then trim a one-page version for each application.
Keep the format plain
- Use a single column, standard headings (Experience, Education, Skills), and a common font — decorative layouts can confuse screening software.
- One page for under ten years of experience is the common convention in the US.
Free resources
- Harvard OCS: Resumes and Cover Letters (PDF Guide) — Harvard’s free guide with résumé and cover-letter templates, action verbs, and annotated examples.
- Penn Career Services: Resume Guide — University of Pennsylvania guide to résumé structure, content, and formatting.
- MIT CAPD: Resume Checklist — A checklist for reviewing a résumé before sending it.
- How Applicant Tracking Systems Actually Work in 2026 — How screening software reads and ranks résumés, and what that means for formatting.
Cover letters
A cover letter answers the question a résumé can't: why this role, at this organization, now. When a posting makes one optional, a short, specific letter is usually still worth sending.
Open with the specific reason
- Name the role and the concrete thing that drew you — a project, a product, a mission — in the first two sentences.
- Skip the generic "I am writing to apply" opening; the reader already knows.
Connect one or two accomplishments to their needs
- Pick the requirements the posting emphasizes most and match each to a specific example from your work.
- A short letter that does this well beats a long one that repeats the résumé.
Keep it under a page
- Three short paragraphs is a workable structure: why them, why you, and a straightforward close.
- Address a career change or gap directly in one sentence rather than leaving the reader to guess.
Free resources
- Ask a Manager — Alison Green's long-running advice column, with a large archive of cover-letter examples and critiques.
- Career Contessa — Free cover-letter templates and examples, with a focus on career changers.
Interviews
Interviews reward preparation more than polish. Most questions fall into a handful of predictable categories, so the work happens before the call.
Prepare stories in the STAR shape
- For behavioral questions ("tell me about a time when..."), answer with Situation, Task, Action, Result — and keep the result specific.
- Prepare five or six stories that cover your strongest work; most questions can be answered with one of them.
Research the organization
- Read recent news, the team's work, and the job posting again the day before; reference something current in your answers.
- Prepare two or three questions that show you understand what the role actually does day to day.
Practice out loud
- Rehearse answers spoken aloud, not just written — timing and phrasing feel different when spoken.
- For technical tracks, expect a practical component: a SQL exercise, a case prompt, or a scenario walkthrough.
Free resources
- STAR Method Answer Worksheet — A fill-in worksheet for drafting Situation, Task, Action, Result answers.
- The Resume Verb Bank — Action verbs for describing accomplishments in résumés and interview answers.
- U.S. DOL TEAMS Salary Negotiation Participant Guide — U.S. Department of Labor workshop guide to researching pay and negotiating an offer.
- Handling Age Bias in Interviews (AARP) — AARP guidance on addressing age-related assumptions during interviews.
- The Acing Your First Interview Playbook — A step-by-step preparation playbook for a first interview.
AI tools in the application process
AI tools can draft, tailor, and rehearse — but hiring managers increasingly screen for generic AI-written applications. Use these tools as a starting point, then rewrite in your own voice.
Use AI for drafts, not final copy
- A chatbot can turn your notes into a first draft of a résumé bullet or cover letter; the revision pass is where your voice and specifics go in.
- Verify every claim an AI tool writes about you — it will invent plausible-sounding accomplishments.
Tailor at scale, carefully
- AI can compare your résumé against a job posting and flag missing keywords — useful for applicant tracking systems.
- Applications that read as fully machine-written are easy to spot; personalize the opening and the specifics.
Rehearse interviews with AI
- Ask a chatbot to play the interviewer for your target role, then critique your answers.
- Treat its feedback as one opinion; a mock interview with a person in the field is still the stronger practice.
Free resources
- AI-Powered Job Search Tools (on this site) — Four AI assistants that run parts of a job search for you — JobPilot AI, JobRizz JobDork, Job Search Agent, and career-ops.
- Jobs hub (on this site) — Job boards by field, including AI, data, and machine learning roles, plus current evidence on how AI is changing hiring.