Description We are looking for an organized and personable Administrative Assistant to join our team on a contract basis in San Mateo, California. This role is integral to ensuring smooth communication and efficient administrative operations within the organization. The position primarily supports the Executive Director/Business Manager while also assisting with general office tasks. Responsibilities: • Welcome and assist visitors, including clients and members of the public, in a detail-oriented and friendly manner. • Manage incoming mail by opening, sorting, and preparing payables for accounting processing. • Record receivables using Excel, transferring data accurately to the accounting system. • Provide assistance with various office projects and tasks as assigned. • Maintain clear and effective communication with team members and stakeholders. • Ensure compliance with organizational procedures and policies during daily operations. • Support the Executive Director/Business Manager by managing scheduling, correspondence, and other administrative needs. • Handle receptionist duties, including answering calls and directing inquiries. • Uphold a welcoming and detail-oriented environment for staff and visitors. • Collaborate with team members to streamline administrative processes. Requirements • Proficiency in Microsoft Office applications, including Word and Excel. • Strong verbal and written communication skills paired with a welcoming demeanor. • Proof of vaccination is required. • Ability to adapt to and tackle various projects as needed. • Minimum of one year of experience in an administrative or receptionist role. • Customer service skills with the ability to manage inquiries effectively. • Must be available to work on-site Monday through Friday. • Familiarity with basic accounting procedures is a plus. 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) .