Administrative Assistant - Senior - Military veterans preferred

ManTech (


  full-time   employee

United States

Secure our Nation, Ignite your Future

Become an integral part of a diverse team in the Mission, Cyber and Intelligence Solutions (MCIS) Group.  Currently, ManTech is seeking a motivated, mission oriented Sr. Administrative Assistant, in the Chantilly, VA area, with strong Customer relationships.  At ManTech, you will help protect our national security while working on innovative projects that offer opportunities for advancement.

The IOS Division provides mission solutions to a wide range of Defense and Intelligence Community customers. This division consists of a team of technical leaders that deliver advanced technical solutions to government organizations.  Our customers have high standards, are technically adept, and use our products daily to support their mission of protecting national security. Our contributions to our customer’s success is driving our growth.

The successful candidate will provide on-site administrative support and coordination to a complex contract, project or task(s) for a Deputy Director. 

Duties include, but are not limited to:

  • Oversees the administrative and clerical functions of assigned contracts, projects, or tasks.
    Maintains office records and files.
  • May collect time sheets and other personnel records or paperwork for corporate and government processing.
  • Managing calendars, answering telephones, reviewing documents (including professional documents, memorandums, awards, OPRs, etc), making travel preparations (experience with eTrip is desired), maintaining office staff phone contact lists, managing vehicle and parking pass log book.
  • Performs other duties as assigned, such as Human Resources, Facilities, and Security functions.

Required Skills:

  • Ability to handle stress and work well under pressure. Ability to use MS Office. Analytical and Critical Thinking Skills. Interpersonal and People Skills. Listening Skills. Multi-Tasking Ability. Oral and Written Communication Skills. Organizational Skills. Team-Building Skills and Typing Skills (50+ wpm)

Position Requirements:

  • Position Requirements:
    • High School Diploma and 8+ years of experience, or Bachelor’s Degree and 2+ years of experience.
    • Thorough understanding of administrative processes. Must be very responsive to tasking and able to work well independently and in groups.
    • Previous NRO experience is highly desired.

Security Clearance Requirement:

  • Active/current TS/SCI with Polygraph is required.

Physical Requirements:

Must be able to be in a stationary position more than 50% of the time

Must be able to communicate, converse, and exchange information with peers and senior personnel

Constantly operates a computer and other office productivity machinery, such as a computer


ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access as a result of your disability. To request an accommodation please click and provide your name and contact information.