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Senior Administrative Assistant

Job in Chantilly, Fairfax County, Virginia, 20151, USA
Listing for: MANTECH
Full Time position
Listed on 2026-06-04
Job specializations:
  • Administrative/Clerical
    Office Administrator/ Coordinator, Virtual Assistant/ Remote Admin
Job Description & How to Apply Below

MANTECH seeks a motivated, career, and customer-oriented Senior Administrative Assistant to join our team in Chantilly, VA area. The successful candidate will provide on-site administrative support to senior leaders.

Responsibilities include but are not limited to:

  • Provide administrative support to Senior Leaders (to include: managing calendars, answering telephones, reviewing documents, making travel, responding to correspondence, and maintaining office staff phone contact lists)
  • Oversee the administrative and clerical functions in support of the assigned team, contracts, projects, or tasks
  • Schedule meetings and reserve conference rooms
  • Attend and facilitate meetings, and capture meeting minutes (as directed)
  • Perform other duties as assigned, such as Human Resources, Records Management, Facilities (to include escorting), and Security functions
  • Provide coverage (as needed) across functional Administrative Team
  • Domestic travel up to 25%

Minimum Qualifications:

  • High School Diploma and 8+ years of experience, or Bachelor’s Degree and 2+ years of experience
  • Demonstrated proficiency in Microsoft Office tools (to include: Outlook, MSWord, Excel, PowerPoint, etc.)
  • Possess excellent organization and time-management skills
  • Possess strong Typing Skills (50+ wpm)
  • Ability to work independently on tasks (with minimal guidance)
  • Have exceptional oral and written communication, organizational skills, and team-building skills
  • Experience working in fast-paced environments and working under quick timelines assisting multiple clients.

Preferred Qualifications:

  • Demonstrate expert-level analytical and Critical Thinking Skills
  • Have strong interpersonal, people, and listening skills
  • Be responsive to tasking and able to work well independently and in groups
  • Previous NRO experience is highly desired
  • Experience with customer program eTrip

Clearance Requirement:

  • Active/current TS/SCI with Polygraph is required

Physical Requirements
:

  • Must be able to remain in a stationary position 50%
  • Needs to occasionally move about inside the office to access file cabinets, office machinery, etc
  • Frequently communicates with co-workers, management, and customers, which may involve delivering presentations
Position Requirements
10+ Years work experience
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