Demo

Senior Administrative Assistant

CBIZ
Costa Mesa, CA Full Time
POSTED ON 12/13/2025 CLOSED ON 2/13/2026

What are the responsibilities and job description for the Senior Administrative Assistant position at CBIZ?

Essential Functions and Primary DutiesPerform general office duties such as ordering supplies, maintaining records management systems, and performing basic bookkeeping workPrepare various documents which may include invoices, reports, memos, letters, responses to correspondence, surveys, spreadsheets and presentationsRead and analyze incoming memos, submissions, mail and reports to determine significance; plan distributionPerform project workOversee building and office access, parking, facilities maintenance, and vendor coordination.Greet and assist visitors, manage office arrangements, and field inquiries from team members and clientsAssist with IT setup, conference room technology, and preparation for meetings and events.Schedule and manage conference rooms, hoteling desks, and front desk coverage.Coordinate office tours, clean out desks, and organize setups for new team members.Coordinate and help execute office events in collaboration with the team.Make travel arrangements for executives as requestedCreate and improve operational processes and proceduresAdditional responsibilities as assignedMinimum QualificationsHigh School Diploma or GED 3 years relevant work experience in an office environment and preferably performing as an administrative assistantProficient use of applicable technologyAdvanced computer skills in Word, Excel, PowerPoint, and OutlookAbility to manage multiple projects and deliverables simultaneouslyExcellent written/verbal communication skills and use of grammarExcellent organizational skills and attention to detailAbility to adapt to a changing environmentAbility to follow standard proceduresAbility to work cooperatively with othersAbility to build relationships and trust with internal and external clients and other key stakeholders #LI-JF1 #LI-OnsiteABOUT US CBIZ Inc. is a leading professional services advisor to middle market businesses and organizations nationwide. With unmatched industry knowledge and expertise in accounting, tax, advisory, benefits, insurance, and technology, CBIZ delivers forward-thinking insights and actionable solutions to help clients anticipate what's next and discover new ways to accelerate growth. CBIZ has more than 10,000 team members across more than 160 locations in 22 major markets coast to coast.CBIZ strives to be our team members' employer of choice by creating an environment where team members are appreciated, recognized for their contributions, and provided with opportunities to grow, both personally and professionally, throughout their careers.Together, CBIZ and CBIZ CPAs are ranked as one of the top providers of accounting services in the United States. CBIZ CPAs is an independent CPA firm that provides audit, review and attest services, while CBIZ provides business consulting, tax and financial services. In certain jurisdictions, CBIZ CPAs operates under its previous name, Mayer Hoffman McCann P.C.

Salary : $30 - $35

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior Administrative Assistant?

Sign up to receive alerts about other jobs on the Senior Administrative Assistant career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$59,158 - $74,794
Income Estimation: 
$72,615 - $89,381
Income Estimation: 
$68,734 - $85,597
Income Estimation: 
$67,182 - $95,497
Income Estimation: 
$85,464 - $107,127
Income Estimation: 
$125,305 - $173,168
This job has expired.
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at CBIZ

  • CBIZ Kansas, MO
  • Job Description The Sales Development Representatives primary objective is to connect, profile, qualify and convert prospects to set-up revenue-producing a... more
  • 14 Days Ago

  • CBIZ Phoenix, AZ
  • Job Description We are seeking a dynamic and results-driven Retirement Plan Sales Consultant to join our team. This role is responsible for driving new bus... more
  • 15 Days Ago

  • CBIZ Bellevue, WA
  • Job Description Essential Functions And Primary Duties Demonstrates thorough technical knowledge of accounting standards and reporting standards in researc... more
  • 15 Days Ago

  • CBIZ St Louis, MO
  • Job Description Job Purpose/Objective Coordinates and facilitates the plan implementation or transition process for new and existing TPA clients Transition... more
  • 15 Days Ago


Not the job you're looking for? Here are some other Senior Administrative Assistant jobs in the Costa Mesa, CA area that may be a better fit.

  • Premier Workspaces Irvine, CA
  • Full-time Description Job Description: Administrative Assistant Position: Full-Time Position available: Immediately Schedule: Full-Time, Monday-Friday, 8:3... more
  • 19 Days Ago

  • AmeriPharma Laguna Hills, CA
  • Are you highly organized and great at managing details? Are you ready to maximize your experience and join a fast-growing company where your ideas and opin... more
  • 2 Months Ago

AI Assistant is available now!

Feel free to start your new journey!