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Administrative Assistant

Mathys-Potestio, LLC
dental insurance, 401(k)
United States, California, Los Angeles
Oct 09, 2025

Administrative Assistant - 5+ years experience

This is a 6 month (full-time) on-site contract role located in Los Angeles, CA.

Summary

This role provides high-level administrative support to senior managers and the broader team, ensuring smooth operations and effective communication across the organization. The Administrative Assistant III acts as a key point of contact for internal and external stakeholders while managing multiple priorities and complex tasks independently.

Our Ideal Candidate




  • 5+ years of experience as an administrative assistant or in a similar administrative support role



  • Passion for supporting teams and enhancing organizational efficiency with a strong foundation in executive-level administrative skills



  • Proficient in Microsoft Office (Outlook, Word, Excel, PowerPoint) and other relevant software, with strong organizational and multitasking abilities



  • Familiar with calendar management, travel planning, expense reporting, and meeting coordination



  • Skilled in collaborating with senior managers, cross-functional teams, and external contacts



  • Able to work independently and manage multiple projects simultaneously



  • Flexible and adaptable to changing priorities, timelines, and stakeholders



  • Strong written and verbal communication with exceptional attention to detail



  • Demonstrates initiative, sound judgment, and professionalism in all interactions




Job Description

In this role, you will provide comprehensive administrative support to senior managers and the broader team. You'll partner with internal teams and external contacts to coordinate meetings, manage schedules, plan complex travel, and ensure timely follow-up on key tasks. This includes:




  • Scheduling, rescheduling, and prioritizing meetings using discretion and judgment



  • Coordinating logistics for internal and external meetings, including rooms, equipment, and visitor management



  • Preparing correspondence, reports, presentations, and other documentation



  • Managing incoming/outgoing communications, including email, phone calls, and mail



  • Organizing and maintaining confidential information, records, and databases



  • Processing expense reports and handling procurement of supplies or equipment



  • Supporting special projects and continuous process improvements



  • Acting as the first point of contact for the team, responding to inquiries, and building relationships to facilitate smooth operations




You will also maintain internal tools, resources, and records to support the team's overall efficiency and success.

Education and Experience




  • Bachelor's degree in business, communications, or a related field, or equivalent practical experience



  • Background in office administration, executive support, or operations



  • Preferred: experience supporting senior leaders in fast-paced environments




Additional Requirements




  • This opportunity is located in Los Angeles, CA and requires on-site work



  • The pay for this W-2 position ranges from $40 - $41.38 per hour.



  • This position may be eligible for PTO, health and dental insurance, and/or 401(k) benefits upon meeting certain length of service and hours requirements




Mathys+Potestio values applicants of all backgrounds and experiences. We do not discriminate based on race, color, national or ethnic origin, ancestry, age, religion or religious creed, disability or handicap, sex or gender, gender identity and/or expression, sexual orientation, military or veteran status, genetic information, or any other characteristic protected under applicable federal, state, or local law.

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