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Sr. Administrative Assistant

Robert Half
Milpitas, CA Other
POSTED ON 1/28/2026 CLOSED ON 2/27/2026

What are the responsibilities and job description for the Sr. Administrative Assistant position at Robert Half?

We are looking for an experienced Senior Administrative Assistant to join our team in Milpitas, California. This is a Contract position within the construction industry, requiring a proactive and detail-oriented individual to provide high-level administrative support to multiple leaders. The ideal candidate will excel in coordinating office operations, managing budgets, and ensuring seamless workflows while contributing to a positive and efficient work environment.Responsibilities:• Provide high-level administrative support to multiple leaders, including managing complex calendars and coordinating meetings and schedules.• Prepare presentations, draft communications, and support stakeholder coordination while navigating dynamic and fast-paced situations.• Oversee daily office operations, including space planning, office moves, and maintaining a professional and welcoming work environment.• Manage office budgets, track expenses, and handle procurement processes in coordination with vendors and facilities partners.• Develop, maintain, and improve office management systems, workflows, and tools to enhance efficiency and scalability.• Partner with People and Communications teams to support office events, employee engagement initiatives, and travel coordination.• Serve as a primary on-site resource, providing hands-on administrative and operational support, with occasional travel to other locations as needed.• Support expense reporting, document management, research, and project follow-up to ensure smooth and effective operations.

Salary : $40 - $44

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