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Cyber Defense Administrator (Polygraph)

ManTech | Herndon VA 22096 USA | Full Time | Posted: 07/03/2020

Job Descriptiontop

Secure our Nation, Ignite your Future


  • Operate and maintain Sponsor cyber defense systems
  • Resolve problems/issues with cyber defense infrastructure (tier 1 & 2 level)
  • Perform and validate patching and system backups of systems within span of control
  • Monitor system performance and modify configurations accordingly to optimize performance
  • Manage access to cyber defense infrastructure
  • Provide on-call support during non-standard business hours, as required 
  • Maintain system baselines and configuration management items, including security event monitoring “policies” consistent with COTR and Sponsor management
  • Prepare status reports and attend review boards, as required



  • A bachelor’s degree in computer engineering, computer science, or similar related IT discipline and/or equivalent knowledge
  • Minimum of five years of experience in network engineering, system engineering, or system administration (emphasis on implementation)
  • Prior operations and maintenance support of Windows-based systems and/or Linux-based systems
  • Good organizational and interpersonal communications skills
  • Strong analytical and problem-solving skills
  • Willing and able to lift up to 35 lbs.
  • Willing and able to drive a Government-owned vehicle.


  • Familiarity with network security applications, protocols, and associated hardware
  • Experience with Active Directory, MDT, HyperV, VMWare, Nagios, and/or NetApp

Security Clearance Requirements: Active TS/SCI w/ Polygraph


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.

Job Detailstop

Location Herndon, VA, 22096, United States
Categories Professional
Sec Clearances Top Secret/SCI with Full-scope Polygraph

Location Maptop

Contact Informationtop

Contact Name -
How to apply Employer provided a link where your application will be accepted. Click on the link below and follow instructions.
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Job Code R03194