Administrative Assistant

ManTech; United States; Remote; USD 42,000 - 69,000; Full time

Benefits offered by this job

Health Insurance

Paid Time Off

Retirement and Savings

Wellness programs

Job summary

ManTech is seeking an Administrative Assistant to join our onsite team in Patuxent River, MD. This role supports executives and program teams, handling correspondence, calendars, travel, and records management.

The position requires a High School Diploma or equivalent and at least 1 year of clerical experience, with U.S. citizenship and the ability to obtain an Interim Secret clearance. The working environment is onsite with full-time hours and competitive benefits.

Qualifications

• High School Diploma or equivalent education.
• 1+ year of clerical or administrative experience.

Responsibilities

• Draft, edit, and proofread routine correspondence, memos, emails, and documents.
• Manage calendars, schedule appointments, coordinate meetings, and arrange travel.
• Maintain filing systems (paper and electronic) for secure retrieval of records.
• Support development and tracking of organizational cost estimates and budgets.
• Prepare briefing charts, slide decks, and reports for leadership meetings.

Education

High School Diploma or equivalent education

Job description

General information

Requisition # R71341

Locations: USA-MD-California

Posting Date: 10/13/2026

Security Clearance Required: Interim Secret

Remote Type: Onsite

Time Type: Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

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.

The projected compensation range for this position is $41,700.00-$68,600.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH 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 [e-mail] and provide your name and contact information.