ManTech seeks a motivated, career and customer-oriented **Administrative Assistant** to join our team in **Crane, IN.** This position is onsite. This position will provide administrative and organization support for a NSWC Crane Department, to include assistance performing Administrative Security related duties. **Responsibilities include but are not limited to:** + Perform administrative functions such as drafting correspondence, scheduling appointments, organizing, and maintaining paper & electronic files, records scanning and management, and providing information to callers + Support of Security related Facility Management items, to include inventory of safes & content, and security container combination changes + Handling of Personally Identifiable Information (PII) in the course of daily duties **Minimum Qualifications:** + High School diploma or GED + 3+ years of professional experience relevant to DoD Administrative support, space access control, and office tasking + Proficiency working with computers and data entry software applications **Preferred Qualifications:** + Associates degree or above + Experience related administrative experience at NAVSEA or Navy DoD environment operating; NAVSEA Corporate Applications, Defense Travel System (DTS), Defense Information System for Security (DISS), Base Access Security Information Control System (Basics II), Share Point, Government developed databases, and maintaining/coordinating calendars and schedules + Experience working support personnel to ensure admin, IT, and security infrastructure maintenance is provided + Experience tracking and managing AV/IT resources and conference room scheduling. **Clearance Requirements:** + U.S. Citizenship and an active or current TS/SCI security clearance **Physical Requirements:** + Must be able to remain in a stationary position 50% of the time + The person in this position frequently communicates with co-workers, management and customers. + Must be able to exchange accurate information in these situations. + Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer **Move about freely in an office / laboratory setting** 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. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.