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Robert Half Logo Robert Half · Office Administration

Administrative Office Assistant

United States, Brea · Job Posted June 29, 2026
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Job Description

A well-established and highly respected CPA firm in Brea is seeking a dependable Administrative Office Assistant to join their team. This is an excellent opportunity for a professional who values stability, enjoys supporting a busy office environment, and takes pride in following through on responsibilities with accuracy and consistency.

Job Responsibility

  • Answer and direct incoming phone calls in a professional manner
  • Greet clients and visitors while providing exceptional customer service
  • Manage incoming and outgoing mail, packages, and correspondence
  • Schedule appointments and maintain calendars for accounting staff
  • Prepare, organize, scan, and file client documents and records
  • Assist with data entry and updating client information in company databases
  • Support tax season administrative projects and document management
  • Order and maintain office supplies and coordinate vendor requests
  • Assist with special projects and general office support as needed
  • Ensure confidentiality of client and financial information

Requirements

  • 2+ years of administrative, office assistant, receptionist, or customer service experience
  • Strong organizational skills and attention to detail
  • Proficiency in Microsoft Office Suite, including Outlook, Word, and Excel
  • Excellent verbal and written communication skills
  • Ability to prioritize tasks and meet deadlines
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