Administrative Assistant

MANTECH seeks a motivated, career and customer-oriented Administrative Assistant to join our team working in Patuxent River, MD. This is an onsite position.

Responsibilities include but are not limited to:

• Draft, edit, and proofread routine correspondence, memos, emails, and organizational documents.

• Manage calendars, schedule appointments, coordinate meetings, and arrange travel or logistics as required.

• Establish, organize, and maintain both paper and electronic filing systems to ensure secure and easy retrieval of records.

• Assist in developing, documenting, and tracking organizational requirements and workflow processes.

• Support the administration and tracking of customer agreements, Statements of Work (SOWs), Memorandums of Agreement (MOAs), and inter-agency agreements.

• Help gather data and maintain records for organizational cost estimates, budgets, and financial tracking documents.

• Monitor progress, contract milestones, and task deliverables to ensure key organizational deadlines are met.

• Work independently on assigned administrative projects, conducting basic research and gathering supporting data.

• Prepare, design, and assemble briefing charts, slide decks, reports, and visual presentation materials for leadership and client meetings.

• Summarize research findings into concise notes or draft summaries for manager review.

Minimum Qualifications:

• High School Diploma or equivalent education

• 1+ year of clerical or administrative experience

Clearance Requirements:

• U.S. citizenship required and a current or active Secret clearance or ability to obtain an Interim Secret prior to starting.

Physical Requirements:

• The person in this position must be able to remain in a stationary position 50% of the time.

• 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.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at  and provide your name and contact information.