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Administrative Assistant II#26-05650 Jurupa Valley, CA Onsite Contract - W2 Starts 8/31/2026 Ends 2/28/2027 Job Description Administrative Assistant

Location:

Jurupa Valley, CA (Onsite)

Schedule:

Full-Time, 40 hours per week

Duration:

6 month contract

Pay Rate:

$25.00

Hours:

Monday through Friday, 8:00 AM - 5:00 PM Position Summary We are seeking a highly organized and proactive Administrative Assistant to support daily site operations and administrative functions. This role is ideal for an individual who thrives in a fast-paced environment, enjoys managing multiple priorities, and takes initiative to improve processes and maintain efficient office workflows. The successful candidate will serve as a key administrative resource, coordinating site activities, supporting vendor management, maintaining documentation, and ensuring smooth day-to-day operations. Key Responsibilities Serve as a professional point of contact for internal teams, vendors, and external partners. Build and maintain positive working relationships across all levels of the organization. Coordinate and manage schedules, meetings, conference calls, and interviews. Support site procurement activities, including vendor coordination, supply orders, facility services, utility accounts, and other operational needs. Assist with vendor onboarding and setup in internal business systems. Prepare, organize, convert, and route documentation through approval workflows. Maintain accurate records and support document control processes. Track monthly expenses and assist with cost reporting activities. Identify opportunities to improve administrative processes and office efficiency. Manage multiple projects and priorities while meeting deadlines. Perform additional administrative and site support duties as assigned. Required Qualifications Minimum of 2 years of experience in an administrative, office coordination, or site support role. Experience in manufacturing, industrial, logistics, recycling, construction, or similar operational environments preferred. Strong organizational and time-management skills with the ability to prioritize competing demands. Proficiency in Microsoft Office Suite, including Outlook, Excel, Word, and PowerPoint. Excellent verbal and written communication skills. Ability to work independently with minimal supervision and exercise sound judgment. Experience maintaining records, documentation, and approval workflows. Strong attention to detail and commitment to accuracy. Preferred Qualifications Experience with vendor onboarding, purchase requisitions, purchase orders, or ERP systems (SAP experience is a plus). Knowledge of document control and records management practices. Experience preparing reports, tracking budgets, and monitoring expenses. Ability to coordinate multiple projects simultaneously in a deadline-driven environment. Associate degree in Business Administration or a related field preferred.