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Administrative Assistant

Job in Costa Mesa, Orange County, California, 92626, USA
Listing for: Robert Half
Full Time position
Listed on 2026-08-30
Job specializations:
  • Administrative/Clerical
    Office Administrator/ Coordinator, Admin Assistant, Clerical, Office Assistant
Job Description & How to Apply Below

Administrative Assistant

We are looking for a dependable Administrative Assistant to support daily office operations in Costa Mesa, California. This contract-to-permanent position is ideal for someone who enjoys keeping a workplace organized, welcoming, and running efficiently while providing administrative support across a busy office. The person in this role will serve as a key point of contact for front desk activity, office coordination, and staff support, helping ensure meetings, supplies, records, and day-to-day requests are handled smoothly.

Responsibilities:

  • Oversee front desk and general office activities, creating a well-organized and welcoming environment for employees, clients, and visitors.
  • Maintain inventory for office materials, kitchen items, and refreshments by tracking usage, placing orders, and restocking deliveries.
  • Handle incoming, outgoing, and internal document flow, including preparing mailings and coordinating trips to postal and courier locations when needed.
  • Support file organization and tax-related document administration by maintaining accurate records and ensuring materials are properly routed and stored.
  • Coordinate workspace logistics for employees, including badges, keys, and other office access or seating needs.
  • Provide first-level assistance for minor technology issues and connect staff with appropriate support teams for more complex needs.
  • Organize meeting, training, and event logistics by arranging rooms, preparing materials, managing food orders, and assisting with setup and cleanup.
  • Inspect conference rooms regularly to confirm they are clean, stocked, functional, and ready for upcoming schedules.
  • Process and reconcile meal-related receipts and similar administrative expenses with accuracy and timeliness.
  • Respond proactively to daily administrative requests and assist with special assignments or office projects as directed by leadership.
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