Network System Administrator

Mantech International Corporation
Los Angeles, CA, United States
2 days ago
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Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Experienced
Experience required
2 years minimum
Working hours
Regular working hours

Tech stack

Microsoft Windows Access Network Business Analytics Applications Cyber Security File Server Firmware Monitoring of Systems Local Area Networks Network Security SAP (Applications) Transmission Control Protocol (TCP) Wide Area Networks
+6 more
Backup and Restore Transport Layer Security File Transfer Protocol (FTP) Enterprise Software Applications Computer Network Technologies Information Technology

Job description

  • Install, configure, audit, and support secure MS Windows operating environments, local file servers, network access controls, and limited web/data application services.
  • Maintain core network protocols and services (IP, TCP, HTTP, HTTPS, FTP, and SSL), firewalls, and Security Monitoring Systems while preserving complete systems documentation.
  • Analyze, troubleshoot, and resolve hardware and software anomalies quickly to optimize equipment performance and satisfy local customer mission requirements.
  • Perform scheduled maintenance routines, hardware upgrades, firmware updates, configuration changes, and routine system backups across on-site and off-site storage libraries.
  • Prepare classified IT systems for operational fielding and assist with integrated operational test events.
  • Interface with customers, IT staff, and program managers during requirements and planning sessions to provide dependable technical guidance.
  • Provide peer leadership, mentoring, and quality assurance reviews for junior team members to maintain continuous operational readiness.

Requirements

  • Bachelor’s degree in a related technical area; an additional 4 years of related experience might be substituted for a degree.
  • 6+ years of total related experience

  • 4+ years of relevant SCI or SAP computing environments (minimum 2 years of direct SAP experience).
  • Active DoD Directive 8570.01-M Information Assurance Technician (IAT) Level II certification (e.g., Security+ CE, CCNA, CySA+, or CND) or ability to obtain within 6 months of hire, and applicable Windows operating system professional certifications aligned with customer and mission requirements.
  • Proven technical competency managing core networking protocols, enterprise system backups, and secure network infrastructure., * Working knowledge of Windows Server environments, enterprise messaging services, and integrated Local Area Network/Wide Area Network (LAN/WAN) architectures.
  • Direct familiarity with JAFAN 6/0, DCID/JAFAN 6/3, DCID/JAFAN 6/9, and DODIIS/Cryptologic SCI standards, with experience handling PL1 through PL4 cross-domain solutions.
  • Strong working background in DoD security manuals, ICD policies, and legacy system Certification and Accreditation (C&A) lifecycles.

Clearance Requirements:

  • An active Top Secret clearance with SCI eligibility is required to start.
  • Applicants must be eligible for access to Special Access Programs (SAPs).
  • Must have a willingness to submit to a Counterintelligence polygraph examination.

Physical Requirements:

  • Must be able to remain in a stationary position 50% of the time in closed-area offices.
  • Must be able to lift up to 50 pounds.
  • Need to occasionally move about inside and outside the office to access files, cabinets, or safes, and to install or remove computer-related equipment.
  • Position requires local and regional travel within the organizational Area of Responsibility (AOR) via air and ground transportation.

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