Administrative Assistant

Robert Half • Costa Mesa, CA • 5h ago

Description

We are looking for a detail-oriented Administrative Assistant to join our team on a contract basis in Costa Mesa, California. This position is ideal for someone who thrives in a fast-paced environment and enjoys working with structured data, spreadsheets, and operational reporting. As a key part of the team, you will provide essential support across various departments, ensuring that processes run smoothly and efficiently.

Responsibilities:

Create and update spreadsheets and tracking tools to facilitate day-to-day operational processes.

Gather, organize, and maintain reports related to sales, commissions, payroll entries, and other proprietary data.

Support the development of weekly reporting by providing calculations and data tracking in line with current reporting standards.

Optimize, standardize, and manage internal documents, SOPs, and shared team resources.

Deliver administrative support for management and various cross-functional teams.

Oversee project coordination activities, ensuring timely follow-up and completion of assigned initiatives.

Ensure operational data and files are accurately maintained and systematically organized.

Partner with different departments to address evolving priorities and support operational requirements.

Assist with commission calculations and handle data entry as needed.

Requirements

Minimum of five years' experience in administrative support, operations assistance, or office management.

Advanced proficiency in Excel and Google Sheets, including handling structured data and formulas.

Strong ability to interpret spreadsheets, reports, and operational workflows.

Exceptional organizational skills and keen attention to detail.

Self-motivated with the ability to work independently and adapt to minimal supervision.

Experience supporting finance, HR, sales operations, or executive teams is highly desirable.

Excellent analytical skills and a proactive approach to problem-solving.

Comfortable working in a dynamic environment with shifting priorities.

TalentMatch®

Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more.

All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

© 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use (https://www.roberthalf.com/us/en/terms) and Privacy Notice (https://www.roberthalf.com/us/en/privacy) .

Similar Jobs

Administrative Assistant

Motion Recruitment Partners • Santa Ana, CA • 5h ago

Management & Administrative

Administrative Assistant Santa Ana, California Hybrid Contract Title: Administrative Assistant Description: Provides moderately complex administrative support for one or more departments or administrative units. - Typica...

5h ago

Go to Apply

Demand Gen Marketing Manager

Logitech • Irvine, CA • 6h ago

Management & Administrative

Logitech is the Sweet Spot for people who want their actions to have a positive global impact while having the flexibility to do it in their own way. The Role: The Demand Generation Marketing Manager will develop, execut...

6h ago

Go to Apply

Relationship Manager Senior

City National Bank • Whittier, CA • 1d ago

Management & Administrative

RELATIONSHIP MANAGER SENIOR Whittier Branch WHAT IS THE OPPORTUNITY? Responsible for acquiring small business and personal clients, and will be responsible for deepening existing relationships, with the intent of integra...

1d ago

Go to Apply

Sales and Service Expert

24 Hour Fitness, INC. • San Juan Capistrano, CA • 1d ago

Management & Administrative

FULL-TIME Part-time LOCATION 27124 Calle Arroyo San Juan Capistrano CA 92675 JOB SUMMARY The Sales and Service Expert (SSE) delivers an outstanding and well-rounded sales and service experience to all guests and members...

1d ago

Go to Apply

Sales and Service Overnight

24 Hour Fitness, INC. • Long Beach, CA • 1d ago

Management & Administrative

FULL-TIME Part-time LOCATION 1 World Trade Center, Suite #110 Long Beach CA 90831 THIS IS AN OVERNIGHT POSITION JOB SUMMARY The Sales & Service Overnight (SSO) is a member of the Club Operations team that serves the...

1d ago

Go to Apply

Area Safety Manager

ATKINSON CONSTRUCTION • Corona, CA • 1d ago

Management & Administrative

Atkinson So. California Summary Above all else, our people are passionate about our safety culture. Our organization - from senior leadership to field personnel - has an unwavering commitment to performing work in the sa...

1d ago

Go to Apply

Sr. Manager, Franchise Recruiting

Taco Bell • Irvine, CA • 1d ago

Management & Administrative

Who is Taco Bell? Taco Bell was born and raised in California and has been around since 1962. We went from selling everyone's favorite Crunchy Tacos on the West Coast to a global brand with 8,500+ restaurants, 350 franch...

1d ago

Go to Apply

Unit Secretary

Dignity Health • Long Beach, CA • 1d ago

Management & Administrative

Job Summary and Responsibilities The Staffing Coordinator is a member of the operations team who, under the direct supervision of the Nursing Officer Manager and Chief Nursing Officer assists in ensuring efficient manage...

1d ago

Go to Apply

Customer Service Representative

U-Haul • Tustin, CA • 1d ago

Management & Administrative

Compensation Range: $16.50 to $18.50 Hourly Location: 1431 El Camino Real, Tustin, California 92780 United States of America Are you a people person? Do you love helping others? U-Haul is in search of friendly, motivated...

1d ago

Go to Apply

Human Resources Coordinator

Aston Carter • Irvine, CA • 1d ago

Management & Administrative

The Human Resources Coordinator supports employees and leaders across multiple service centers and serves as a trusted HR partner. This role ensures a smooth onboarding experience, accurate workers' compensation administ...

1d ago

Go to Apply

Subscribe to get new jobs sent directly to you
(no charge, cancel anytime)

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.