Career guides for future professionals

Walk into your next interview prepared.

Job-specific interview questions with sample answers, side-by-side job comparisons with BLS pay data, and cover letter examples you can adapt in an evening.

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Start with what you need

01

Interview Questions

The questions hiring managers ask for a specific job, why they ask, and sample answers built from the real work.

All 48 interview guides

02

Career Comparisons

Two job titles side by side: duties, who they report to, training, pay from BLS data, and how to move between them.

All 12 job comparisons

03

Cover Letters

Full example letters for specific jobs, what to put in each paragraph, and versions for new grads and career changers.

All 10 cover letter guides

Latest guides

Career Comparisons

Chief Business Officer vs. COO

Chief business officer vs. COO: dealmaking and external partnerships versus internal operations, in biotech, higher ed, and K-12.

8 min read

Interview Questions

12 WAF Interview Questions and Answers

12 WAF interview questions on OWASP Top 10 coverage, AWS WAF and Cloudflare, ModSecurity, false positives, and rate limiting, with answers.

10 min read

Career Comparisons

Treasurer vs. Bookkeeper

Treasurer vs. bookkeeper: recording the past versus managing future cash, BLS pay for both, and the volunteer treasurer role at nonprofits.

7 min read

Career Comparisons

Data Engineer vs. DevOps Engineer

Data engineer vs. DevOps engineer: what each builds, the closest BLS pay data for both, and how to pick between the 2 paths.

7 min read

Compare two jobs

Duties, reporting lines, training, and median pay, side by side.

All comparisons
  1. Chief Business Officer vs. COO 8 min read
  2. Treasurer vs. Bookkeeper 7 min read
  3. Data Engineer vs. DevOps Engineer 7 min read
  4. Chief Strategy Officer vs. COO 8 min read
  5. UX Designer vs. Software Engineer 7 min read
  6. Team Lead vs. Supervisor 10 min read

Interview questions by job title

Every interview guide on the site, A to Z.

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Cover letter examples

A full letter for the job, then what to change for your situation.

All cover letters

How the guides are written

  • Pay data with a source

    Median pay and job outlook come from the Bureau of Labor Statistics, with the year stated next to the number.

  • Answers from the actual work

    Sample answers name the tools, metrics, and situations the job involves, so you can swap in your own details.

  • Sources listed on every guide

    Each article ends with the pages it relied on: licensing boards, employer career sites, and government data.