Administrative Assistant

Robert Half • Costa Mesa, CA • 4h ago

Description We are looking for an organized and service-oriented Administrative Assistant to support daily office operations in Costa Mesa, California. This Long-term Contract position is ideal for someone who enjoys being the go-to resource for workplace coordination, front desk support, and executive assistance tasks in a detail-oriented, team-focused environment. The role requires strong attention to detail, sound judgment, and the ability to manage multiple priorities while maintaining a welcoming and efficient office experience.

Responsibilities:

Coordinate day-to-day administrative activities to keep the office running smoothly, including reception coverage, mail handling, and visitor direction.

Manage relationships with external service providers and property-related contacts to arrange maintenance, repairs, and other facility needs.

Oversee workplace organization by monitoring inventory, ordering office and kitchen supplies, and helping maintain clean, well-stocked shared spaces.

Prepare and distribute billing-related communications and assist with administrative follow-up tied to vendors and office services.

Schedule meetings, appointments, and travel arrangements while supporting calendar coordination for leadership as needed.

Assist with expense report preparation, documentation, and general administrative tracking to support operational accuracy.

Provide planning and logistical support for events, team gatherings, and leadership offsite meetings.

Contribute to project-based administrative work by following up on timelines, coordinating details, and keeping stakeholders informed. Requirements - Previous experience in administrative support, office coordination, reception, or a similar business support role.

Strong attention to detail with the ability to manage scheduling, documentation, and multiple ongoing tasks accurately.

Experience interacting professionally with vendors, contractors, and internal teams to resolve office-related needs.

Comfortable handling inbound calls, greeting visitors, and serving as the first point of contact in a front office setting.

Proficiency with general administrative tasks such as data entry, supply ordering, expense support, and correspondence management.

Ability to work effectively in a fast-paced, collaborative office environment while maintaining professionalism and organization.

Strong communication skills and a proactive approach to problem-solving and task ownership. 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

Relationship Manager I

City National Bank • Long Beach, CA • 4h ago

Management & Administrative

RELATIONSHIP MANAGER I WHAT IS THE OPPORTUNITY? Responsible for acquiring small business and personal clients, and will be responsible for deepening existing relationships, with the intent of integrating both business &a...

4h ago

Go to Apply

Sr. Manager, Sales & Market Development

Revelyst • Irvine, CA • 4h ago

Management & Administrative

Irvine, CA Full time R0013609 Job Description The Sr. Manager, Sales & Market Development leads international sales and market development across Latin America and Asia Pacific for Revelyst's Adventure Sports portfol...

4h ago

Go to Apply

Senior Manager, Supply Chain Process & Systems

Chipotle Mexican Grill • Newport Beach, CA • 4h ago

Management & Administrative

CULTIVATE A BETTER WORLD Food served fast does not have to be a typical fast-food experience. Chipotle has always done things differently, both in and out of our restaurants. We are changing the face of fast food, starti...

4h ago

Go to Apply

CUSTOMER SERVICE REP I - SSC

Dal-Tile Corporation • Anaheim, CA • 4h ago

Management & Administrative

Join the largest manufacturer of tile and natural stone in the United States and watch your career stand out with Dal-Tile, a subsidiary of Mohawk Industries. Our close-knit team of dedicated professionals has made us th...

4h ago

Go to Apply

Senior Analyst, Supply Chain Master Data Management

Chipotle Mexican Grill • Newport Beach, CA • 4h ago

Management & Administrative

4h ago

Go to Apply

Administrative Assistant

Robert Half • Newport Beach, CA • 22h ago

Management & Administrative

Description We are looking for an Administrative Assistant to support daily office operations in NYC. This contract opportunity is ideal for someone who enjoys creating an organized, welcoming environment while managing...

22h ago

Go to Apply

Aviation Design Project Manager

AECOM • Orange, CA • 1d ago

Management & Administrative

Company Description Work with Us. Change the World. At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work he...

1d ago

Go to Apply

Engineering Manager

Votaw Precision Technologies, LLC • Santa Fe Springs, CA • 1d ago

Management & Administrative

Job Type Full-time Description Company Background and Summary Votaw Precision Technologies is a trusted leader in the manufacturing of complex precision components, assemblies, and systems for the aerospace, defense, and...

1d ago

Go to Apply

Sales Manager - Mid Markets

AT&T • Tustin, CA • 1w ago

Management & Administrative

Build a more connected world by transforming the sales experience and helping customers and products unite. Our Sales teams are the foundation of our company-they offer millions of customers access to integrated solution...

1w ago

Go to Apply

Security Officer Part Time Unarmed Patrol Driver Observation

Allied Universal • Carson, CA • 1w ago

Management & Administrative

Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynamic, welcoming, and collaborative workplace, you wil...

1w ago

Go to Apply

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