Count: 0 — No careers that start with X meet the site’s criteria for widely recognized occupational titles. Consult authoritative sources such as the U.S. Bureau of Labor Statistics (BLS) and O*NET for standard job listings; those sources index common roles and do not list any mainstream, high‑demand occupations that formally begin with the letter X. Note that English job names rarely start with X, and most X‑leading terms are informal, archaic, trademarked, or alternate phrasings rather than primary occupational titles.

Recognize the reasons for this absence. Understand that X is an uncommon initial letter in English vocabulary, so few established job titles begin with it. Expect many near‑misses: “X‑ray technician” is a familiar phrase but authoritative sources list the role under Radiologic Technologist (R); “xerographer” or “Xerox operator” are obsolete or trademark‑based and fail the guideline for widely recognized, non‑brand titles; and highly specialized labels like “X‑ray crystallographer” exist in research contexts but are too niche to meet the broad, high‑search criteria.

Check related searches and useful alternatives. Search for formally indexed titles such as Radiologic Technologist, Diagnostic Imaging Technician, or Crystallographer to find X‑related work that actually appears under other letters. Consider adjacent letters (W, Y) or role categories (health imaging, laboratory research, equipment operation) for a practical A–Z reference that serves students, career changers, and guidance counselors.