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System Administrator
System Administrator-March 2024
San Antonio
Mar 28, 2026
About System Administrator

  Secure our Nation, Ignite your Future

  ManTech is a leading provider of technology solutions and services to U.S. defense, intelligence, and federal civilian agencies. With over 53 years of experience, we specialize in delivering comprehensive cyber, data collection and analytics, enterprise IT, systems engineering, and software application development solutions that support national and homeland security.

  Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

  ManTech is seeking a motivated, career and customer-oriented Information System Administrator's to join our team in Ft. Meade, MD on a newly awarded mission IT program. Provide unparalleled support to our customer and begin an exciting and rewarding career within ManTech.

  Responsibilities include, but are not limited to:

  Maintain data files and control procedures for a system of networked computers or for a single group of microcomputers linked to a host workstation, or mainframe.

  Maintain system security and data integrity Assign passwords and monitor use of resources, back up files as required and work with management to define requests for information.

  Requires in-depth knowledge and experience Uses best practices and knowledge of internal or external business issues to improve products or services Solves complex problems; takes a new perspective using existing solutions.

  Works independently, receives minimal guidance Acts as a resource for colleagues with less experience.

  Basic Qualifications/Capabilities:

  TS/SCI with poly

  Systems administration experience.

  Bachelor’s degree in a technical discipline from an accredited college or university. 4 additional years of experience may be substituted for a degree

  Preferred Qualifications:

  Linux

  Cloud

  AWS

  Python

  Networking protocols

  Security Clearance Requirements:

  TS/SCI with PolyPhysical Requirements:

  Must be able to remain in a stationary position for extended periods of time.

  Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

  Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.

  The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

  For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

  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 http://www.mantech.com/careers/Pages/careers.aspx as a result of your disability. To request an accommodation please click [email protected] and provide your name and contact information.

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