MANTECH is looking for Senior Administrative Assistant in Chantilly, VA. This local job opportunity with ID 3664957669 is live since 2026-05-06 02:03:43.

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