Description We are looking for an organized and proactive Administrative Assistant to join our team in Ontario, California. This Contract-to-permanent position offers an excellent opportunity to contribute to daily operations and ensure smooth workflows within a dynamic environment. The ideal candidate will possess strong attention to detail, proficiency in Microsoft Word and Excel, and the ability to handle multiple responsibilities efficiently. Responsibilities: • Organize and scan invoices to maintain accurate records and retrieve older invoices when required. • Manage driver files, ensuring compliance and up-to-date information. • Coordinate pre-employment drug screenings for new hires, ensuring timely completion. • Assist in processing bi-weekly timecards for a team of 8-12 employees. • Match receipts with credit card statements and provide bookkeeping support as needed. • Prepare, scan, and store documents systematically for easy access and future reference. • Utilize Microsoft Word and Excel to create documents, input data, and manage files effectively. • Handle various administrative tasks to support daily office operations and maintain efficiency. Requirements • Minimum of 2 years of experience in administrative roles. • Strong organizational skills with a keen eye for detail. • Proficiency in Microsoft Word and Excel for document creation and data management. • Excellent communication skills and a customer-focused approach. • Ability to multitask and prioritize in a fast-paced environment. • Demonstrated ability to handle sensitive and confidential information responsibly. • Familiarity with document scanning and data entry processes. • Experience in receptionist duties and general administrative office tasks. 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) .