Administrative Assistant

Description We are looking for an experienced Administrative Assistant to join a collaborative office on a contract-to-permanent basis. This position supports daily office operations, provides a detail-oriented point of contact for consultants and subcontractors, and handles a range of administrative and accounting-related tasks. The ideal candidate is comfortable working onsite, communicates openly when support is needed, and brings strong Excel skills along with a team-first mindset.

Responsibilities:

- Manage day-to-day administrative activities to keep office operations organized and running smoothly.

- Serve as a welcoming and detail-oriented contact for consultants, subcontractors, and other visitors interacting with the office.

- Answer inbound calls, respond to routine inquiries, and direct requests to the appropriate team members.

- Enter, update, and maintain records with accuracy, including data tied to administrative accounting support.

- Use Excel regularly to prepare, organize, and track information for reporting and internal coordination.

- Provide receptionist coverage and general front-office support in an onsite office environment.

- Assist with ad hoc projects and administrative requests as business needs evolve.

- Communicate proactively with the team when questions arise or additional guidance is needed to complete assignments effectively. Requirements - At least 2 years of experience in an administrative assistant, office support, or similar role.

- Strong working knowledge of Excel for day-to-day business use.

- Experience handling inbound calls, reception responsibilities, and general office administration.

- Accurate data entry skills with strong attention to detail.

- Ability to work fully onsite in Irvine, California.

- Clear verbal communication skills and the confidence to ask for help when needed.

- Comfortable working in a small, collaborative office where teamwork and accountability are important. Talent Match®

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 ()  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  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 ()  and Privacy Notice () .