<p>Robert Half is currently seeking a detail-oriented and reliable <strong>Administrative Assistant</strong> to support the daily operations of a fast-paced business in Diamond Bar, CA. If you thrive in an organized and professional workspace, enjoy administrative duties, and can multitask effortlessly, this temporary position could be an excellent fit. This role offers an opportunity to gain valuable experience while contributing to the success of the company.</p><p><br></p><p><strong>Key Responsibilities</strong>:</p><ul><li>Manage and organize office operations, including scheduling appointments, coordinating meetings, and maintaining calendars.</li><li>Serve as a primary point of contact for incoming calls and correspondence; address inquiries or route them to the appropriate departments.</li><li>Prepare, edit, and distribute documents, reports, and presentations as requested.</li><li>Perform data entry tasks, ensuring accuracy and completeness in company systems and records.</li><li>File, scan, and organize documents, maintaining a well-organized filing system.</li><li>Provide support for project coordination and administrative tasks across various departments.</li><li>Order office supplies and maintain inventory control to ensure the office remains fully functional.</li><li>Assist with other duties as assigned based on the needs of the company.</li></ul><p><br></p>

<ul><li>High school diploma or equivalent; additional education or certifications in administrative support is preferred.</li><li>At least 1-2 years of experience in administrative or office support roles.</li><li>Proficiency in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook) and other common business software.</li><li>Excellent organization, communication, and time-management skills.</li><li>Ability to handle confidential information with professionalism and discretion.</li><li>Strong attention to detail and a proactive problem-solving approach.</li><li>Team-oriented attitude, with the ability to effectively collaborate with others.</li></ul><p><br></p>

<h3 class="rh-display-3--rich-text">TalentMatch^®</h3> <p>­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.</p> <p>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. <a href="https://www.roberthalf.com/us/en/mobile-app" target="_blank">Download the Robert Half app</a> and get 1-tap apply, notifications of AI-matched jobs, and much more.</p> <p>Robert Half will consider for employment qualified applicants with arrest or conviction records in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. 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 <a href="https://roberthalf.gobenefits.net/" target="_blank">roberthalf.gobenefits.net</a> for more information.</p> <p>© 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to <a href="https://www.roberthalf.com/us/en/terms">Robert Half’s Terms of Use</a>.</p>