We are looking for a detail-oriented Administrative Assistant to join our team in Antioch, California. This is a Contract position that requires working onsite. In this role, you will support daily administrative operations, ensuring the office runs smoothly and efficiently. Responsibilities:• Enter data accurately into Excel and Smartsheet, maintaining up-to-date records.• Coordinate outgoing mail and email correspondence, ensuring timely communication.• Manage office supply inventory and ensure the kitchen is stocked with snacks and essentials.• Review timesheets submitted by the superintendent, tracking attendance and identifying any missing information.• Handle inbound and outbound calls professionally, providing excellent customer service.• Schedule appointments and maintain organized calendars.• Prepare documents and presentations using Microsoft Word, Excel, PowerPoint, and Outlook.• Assist with any additional administrative tasks as needed to support the team. If you are interested in this Administrative Assistant role, submit your resume today!

• Proficiency in Microsoft Office Suite, including Excel, Word, PowerPoint, and Outlook. • Strong data entry skills with attention to detail and accuracy. • Excellent verbal and written communication skills for handling calls and correspondence. • Ability to manage time effectively and prioritize multiple tasks. • Experience in scheduling and calendar management. • Customer service mindset with the ability to handle inquiries professionally. • Familiarity with Smartsheet or similar platforms is a plus. • Previous administrative experience in a detail-oriented environment preferred.

<h3 class="rh-display-3--rich-text">TalentMatch®</h3> 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. <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. 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. © 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>.

Antioch, CA
onsite
Contract / Temporary to Hire
23.00 - 24.00 USD / Hourly
We are looking for a detail-oriented Administrative Assistant to join our team in Antioch, California. This is a Contract position that requires working onsite. In this role, you will support daily administrative operations, ensuring the office runs smoothly and efficiently. Responsibilities:• Enter data accurately into Excel and Smartsheet, maintaining up-to-date records.• Coordinate outgoing mail and email correspondence, ensuring timely communication.• Manage office supply inventory and ensure the kitchen is stocked with snacks and essentials.• Review timesheets submitted by the superintendent, tracking attendance and identifying any missing information.• Handle inbound and outbound calls professionally, providing excellent customer service.• Schedule appointments and maintain organized calendars.• Prepare documents and presentations using Microsoft Word, Excel, PowerPoint, and Outlook.• Assist with any additional administrative tasks as needed to support the team. If you are interested in this Administrative Assistant role, submit your resume today!
2025-12-10T17:08:33Z