Administrative Assistant III

Administrative Assistant - 5+ years experience

Administrative Team

This is a 3-month, full-time (40 hours/week), on-site contract role located in New York City, NY.

This role provides high-level administrative support to senior leadership and department teams, ensuring seamless daily operations and contributing to organizational efficiency. The position requires independent judgment, proactive problem-solving, and the ability to handle a wide range of administrative tasks.

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

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  Passion for operational excellence with a strong foundation in calendar and travel management

  
  
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  Proficient in Microsoft Office Suite (Outlook, Word, Excel, PowerPoint) with strong organizational and communication skills

  
  
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  Familiar with internal administrative policies and guidelines

  
  
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  Skilled in collaborating with cross-functional teams, clients, and executives

  
  
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  Able to work independently and manage multiple priorities simultaneously

  
  
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  Flexible and adaptable to shifting timelines and evolving needs

  
  
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  Strong written and verbal communication with exceptional attention to detail

  
  
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  Demonstrates sound judgment and discretion, especially when handling confidential information

  
  

In this role, you will provide administrative support to senior managers and assist broader department functions. You'll partner with internal departments and external contacts to ensure effective scheduling, communication, and operational logistics. This includes:

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  Managing complex calendars, scheduling and rescheduling meetings

  
  
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  Coordinating travel arrangements and preparing supporting travel documentation

  
  
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  Preparing reports, correspondence, presentations, and meeting materials

  
  
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  Managing expense reports and follow-ups on reimbursements

  
  
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  Organizing confidential or sensitive information and maintaining accurate records

  
  
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  Acting as a first point of contact for inquiries, resolving or escalating issues as appropriate

  
  
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  Providing occasional training or direction to other administrative staff
  
  You will also help improve workflows, support team productivity, and contribute to a professional and organized workplace experience.

  
  

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  Bachelor's degree or equivalent practical experience preferred

  
  
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  Strong background in administrative operations, communication, or business support

  
  
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  Previous experience supporting senior leadership is a plus

  
  

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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