Principal Linux Systems Administrator / Sr. Principal Linux Systems Administrator (AHT)

Northrop Grumman•Redondo Beach, CA

11d•$103,600 - $193,900•Onsite

About The Position

Northrop Grumman Defense Systems seeks a Linux Systems Administrator to join our diverse team, working on the Forward Area Air Defense (FAAD) portfolio of programs in Redondo Beach, CA. The selected candidate will perform system administration duties for an Army Air Defense System that includes defense against manned aircraft; rockets, artillery, and mortars; unmanned aerial systems (UAS); and cruise missile defense. This requisition may be filled at the Principal or Senior Principal Systems Administrator level.

Requirements

Strong understanding of Linux system administration (Red Hat or similar enterprise distributions) in lab, development, or production environments
Experience installing, configuring, and troubleshooting Linux operating systems, software, servers, and associated lab hardware, including managing user accounts, groups, and file system permissions
Experience troubleshooting operating systems, networks, and hardware issues across servers and workstations
Experience performing OS level package management, building and maintaining custom RPMs, handling kernel/driver interactions, and conducting performance tuning in Linux environments
Familiarity with scripting (e.g., shell scripting) for system configuration, automation, and maintenance tasks
Demonstrated ability to work collaboratively with engineers and technical leads on schedule driven programs
Hold or able to obtain DoD Secret clearance

Nice To Haves

Familiarity with virtualization platforms (e.g., VMware) and applying security patches and updates to virtualized environments
Experience supporting backup and restore solutions
Experience with vulnerability scanning and security compliance, applying OS/security patches, managing patch repositories, and maintaining antivirus tools
Experience supporting build and deployment environments, including maintaining build scripts and installation media for development environments
Current DoD Secret clearance

Responsibilities

Administer, monitor, and maintain Linux-based systems in lab and development environments, including configuration, patching, and troubleshooting
Load, customize, and harden Linux development workstations and servers to meet program security and performance requirements
Troubleshoot and repair hardware problems, including diagnosing faulty components and coordinating repair or replacement
Respond rapidly to high priority incidents, diagnose root causes across OS, network, and hardware layers, and restore service for critical lab environments
Collaborate closely with software developers and other engineering teams to support build environments, development workflows, and OS-related issues
Document system configurations, procedures, and changes, and contribute to maintaining accurate lab infrastructure inventories