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Network Systems Administrator

Job in El Segundo, Los Angeles County, California, 90245, USA
Listing for: MANTECH
Full Time position
Listed on 2026-08-31
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator, Information Security & Data Protection, IT Support
Salary/Wage Range or Industry Benchmark: 90000 - 120000 USD Yearly USD 90000.00 120000.00 YEAR
Job Description & How to Apply Below

MANTECH

MANTECH seeks a motivated, career and customer-oriented Network Systems Administrator II to join our team in El Segundo, CA
.

The primary function is working with Special Access Program (SAPs) and other classified networks supporting SMC Directorates and/or AFSPC Operational Units. The position will provide "day-to-day" support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Responsibilities include but are not limited to:

  • Install, maintain, audit and support a secure MS Windows network environment and limited web/data application service.
  • Maintain internet applications and protocols IP, TCP, HTTP, HTTPS, FTP, & SSL.
  • Maintain file servers, Firewalls, network access, Security Monitoring Systems and system documentation as required.
  • Interface with local customers and provide IT related support to quickly resolve problems.
  • Analyze and troubleshoot system anomalies to ensure optimum equipment performance.
  • Manage data backup library to include storage of tapes, disks and other magnetic media at the customer’s location and off-site storage facilities as required.
Minimum Qualifications:
  • Bachelor's degree, an additional 4 years of experience might be substituted for a degree.
  • 3 years total related experience.
  • 2 years of relevant SCI or SAP experience.
  • Must meet position and certification requirements outlined in DoD Directive 8570.01-M for Information Assurance Technician Level 2 within 6 months of the date of hire.
  • Requires travel within the organizational Area of Responsibility (AOR) (note - could be extensive and will include both air and ground transportation).
Preferred Qualifications:
  • 1 year of SAP-related experience highly desired.
  • Working knowledge of JAFAN 6/0, DCID/JAFAN 6/3, DCID/JAFAN 6/9, and Joint DODIIS/Cryptologic SCI Information Systems Security Standards, Common Criteria, and System Security Policy as they relate to C&A for Legacy systems.
  • Working knowledge and current relevant experience with PL1 & PL2 systems;
    Experience with PL3 & PL4 cross domain solutions is a plus.
  • Ability to work in a dynamic environment and effectively interact with numerous DOD, military/civilian personnel and industry partners.
Clearance Requirements:
  • Current Top-Secret Clearance with SCI Eligibility.
  • Eligibility for access to Special Access Program Information.
  • Willingness to submit to a Counterintelligence polygraph.
Physical Requirements:
  • Must be able to remain in a stationary position 50%.
  • 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.
  • Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.
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