Administrative Assistant

MANTECH seeks a motivated, career and customer-oriented Administrative Assistant to join our team working in Lexington Park, MD. This is a full-time onsite position.

In this vital role, you will ensure the security and efficiency of our facility by managing access systems, coordinating facility services, and providing administrative support. You will serve as a key point of contact for employees and visitors, fostering a safe and professional environment.

Responsibilities include but are not limited to:

• Enforcing access control policies and managing issuance of visitor badges and credentials
• Maintaining access control records, logs, and coordinating with security on access-related incidents
• Coordinating visitor check-ins and escorting procedures as needed
• Scheduling and coordinating facility maintenance and repairs
• Serving as liaison between staff and facilities management for service requests
• Monitoring office supply inventory and coordinating vendor services
• Supporting meeting and event setup, including logistics and materials
• Managing calendars, meetings, correspondence, and travel logistics
• Maintaining organized physical and electronic records
• Assisting with procurement and inventory of office supplies and equipment
• Preparing reports, presentations, and internal documentation as needed
• Answering and directing calls and emails in a professional manner

Minimum Qualifications:

• 0+ years of experience in an administrative role
• Associate's degree in any discipline
• In lieu of an associate's degree, a high school diploma and 3+ years of experience in an administrative role may be considered
• Strong organizational and time-management skills, with proven ability to manage competing priorities

Preferred Qualifications:

• Previous experience supporting security or facilities operations for a Defense contractor
• Familiarity with visitor management systems or facility scheduling platforms

Clearance Requirements:

• Must be a U.S. Citizen and have the ability to obtain and maintain an active United States Government Secret security clearance.

Physical Requirements:

• Remain in a stationary position 50% of the time.
• Constant operation of office equipment including computer, printer, and copy machine
• Ability to move or lift light office supplies and equipment
• Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.