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Administrative Assistant

Mimecast
Department:Administrative
Type:REMOTE
Region:USA
Location:Pennsylvania, United States
Experience:Entry level
Estimated Salary:$25,000 - $40,000
Skills:
MICROSOFT OFFICEOUTLOOKTEAMSSHAREPOINTGOOGLE WORKSPACE
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Job Description

Posted on: September 21, 2025

Administrative Assistant I (Part-Time, Remote)Mimecast

At Mimecast, we’re on a mission to help organizations around the world keep their data safe, employees productive, and businesses resilient in the face of ever-evolving cyber threats. None of that happens without great people behind the scenes—and that’s where you come in. We’re looking for a detail-oriented, proactive, and resourceful Administrative Assistant I to join our team on a part-time, fully remote basis.

This is an exciting opportunity for someone who thrives in a fast-paced environment and wants to contribute to a global cybersecurity company while enjoying flexibility in their work schedule.

What You’ll Do

As an Administrative Assistant I at Mimecast, you’ll provide vital support to ensure the smooth day-to-day functioning of our teams. Your responsibilities will include:

  • Managing and organizing calendars, scheduling meetings, and coordinating virtual events across time zones.
  • Handling routine correspondence, including drafting emails, preparing documents, and proofreading communications.
  • Assisting with travel arrangements, expense reports, and invoice processing.
  • Supporting project coordination by tracking tasks, updating documentation, and ensuring deadlines are met.
  • Maintaining digital filing systems, shared drives, and internal records for easy access and accuracy.
  • Acting as a point of contact for internal stakeholders, vendors, and clients when needed.
  • Performing general administrative tasks such as data entry, preparing reports, and supporting ad-hoc requests.

What We’re Looking For

We’re looking for someone who is organized, reliable, and ready to take initiative. The right candidate will have:

  • Experience: 1–2 years in an administrative or office support role (internships or part-time roles count).
  • Technical Skills: Comfortable with Microsoft Office Suite, Outlook, Teams, and cloud-based tools like SharePoint or Google Workspace.
  • Communication Skills: Strong written and verbal communication, with a knack for clarity and professionalism.
  • Organization: Proven ability to prioritize tasks, manage time efficiently, and adapt to changing priorities.
  • Collaboration: A team player who can build relationships remotely and work effectively with colleagues across different departments.
  • Discretion: High level of professionalism and confidentiality when handling sensitive information.

Why Join Mimecast?

At Mimecast, we believe our people are our greatest asset. Joining us as a part-time Administrative Assistant means:

  • Flexibility: Work remotely from anywhere with a schedule that fits your life.
  • Impact: Play an essential role in supporting teams that keep businesses around the world safe from cyberattacks.
  • Growth: Gain exposure to a global cybersecurity organization and build skills that will help you grow your career.
  • Culture: Be part of an inclusive, collaborative, and innovative environment where your ideas are valued.

Additional Details

  • Location: Remote (U.S. based)
  • Type: Part-time, non-exempt
  • Hours: Approximately 20 hours per week, flexible schedule
  • Reports to: Administrative Manager

If you’re ready to bring your organizational skills, attention to detail, and positive energy to a team that’s making a difference, we’d love to hear from you.

Apply today and start your journey with Mimecast!

Originally posted on LinkedIn

Apply now

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