Senior Systems Administrator

Leidos hiring for Senior Systems Administrator jobs in El Cajon, CA, US

Description

Leidos is seeking a Senior System Administrator to support various classified environments as an operational lead. The successful candidate will be responsible for training individuals and maintaining, securing, and supporting complex classified information systems, as well as ensuring compliance with security protocols and regulations.

Primary Responsibilities:

This role includes a combination of duties to protect information, and maintain security controls, for an entire system, site, or program to reduce risk.

• Train, mentor, delegate, and lead work schedules for system administrators supporting enterprise-Wide Area Networks (WANs).
• Ensure program’s maintain favorable standings with government regulations and maintain compliance artifacts such as vulnerability scans, STIGs, SCAP scans, network diagrams, and documentation.
• Lead the WAN patch management solution and delegate taskings to remediate system deficiencies.
• Work independently to accomplish time-sensitive projects such as infrastructure buildouts, complex software installations, customer and sub-contractor coordination, and end-user outreach.
• Establish, troubleshoot, and maintain network communications with varying sites and partners for both networking and encryptor devices.
• Other duties as assigned.

Basic Qualifications:

• Must be a U.S. Citizen with a current Active Top Secret security clearance to be considered along with sustained ability to be cleared to Special Access Programs.
• Must have a DoD 8570 IAT level II or higher certification such as CompTIA Security+.
• Extensive experience operating in a Windows-based domain environment to include workstations, Active Directory, DNS, Exchange, and SharePoint.
• Extensive experience operating, troubleshooting, and maintaining RedHat-based operating systems.
• Extensive experience troubleshooting, patching, and maintaining operating systems and third-party environments.
• Experience implementing large projects such as new infrastructure, tech refreshes, and/or complex software installations.
• Experience configuring Cryptographic Encryptors (TACLANES).
• Experience implementing and managing container-based solutions utilizing Docker or Podman.
• Experience maintaining host-based security with Trellix ePolicy Orchestrator.
• Knowledge of change management procedures, roles, and responsibilities.
• Experience with the Risk Management Framework (RMF) and maintaining compliance artifacts such as SCAP scans, STIGs, and Nessus Vulnerability reports.
• Bachelor’s degree with 8-12 years of experience or relevant industry-standard certifications and experience.

Preferred Qualifications:

• RedHat Certified System Administrator (RHCSA) certification.
• Cisco Certified Network Administrator (CCNA) certification.
• Prior team lead and/or managerial experience.

While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.