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# Systems Administration Sr - E3

- **Company:** Lockheed Martin
- **Location:** San Diego, CA, United States
- **Experience:** Expert
- **Salary:** $95,900.0 - $178,100.0
- **Contract:** Permanent contract
- **Skills:** Active Directory, Software Documentation, Cyber Security, Linux, System Center Configuration Manager, Windows Servers, Network Administration, Red Hat Enterprise Linux, Information Technology, Nessus, Splunk
- **Published:** October 26, 2026
- **Apply:** https://www.beyondsandiego.com/job.asp?id=3467816992&tx=HT7266TYT&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

Solid background/experience with Red Hat

Enterprise

 * Microsoft Windows Server Setup, Configuration,

and Administration

 * Experience providing lab support including:

Network/System Administration

 * Experience with server and desktop

management of Linux and Windows

environments

 * Familiar with package deployment, imaging,

and patching

Desired Skills

Compliance with DoD Risk Management

Framework (RMF) Policies (or NIST 800-53)

 * Experience providing support in classified

environments

-DoD 8570 IAT Level II or higher certification:

CCNA Security, CSA+, GICSP, GSEC, Security CE, or SSCP is required.

 * Familiar with Active Directory and SCCM
 * Experience with Aegis and other BMD

systems/platforms

 * Experience interacting with both internal and

external customers/end-users

 * Must be able to work independently with

minimal supervision

## Description

Lockheed Martin is looking for highly motivated, experienced individuals to perform network/system administration and support on a variety of complex platforms supporting BMD and other DoD related activities. System Administration activities include (but are not limited to):

 * Setup and configuration of new computing assets, to include STIG compliant hardening
 * Configuration, fine tuning, and maintenance of security tools such as Nessus, ACAS, Splunk, etc.
 * Setting up/configuring new users
 * Installation and configuration of new software on computing assets
 * Performing preventive maintenance on hardware
 * Assisting the Cybersecurity team in maintaining the compliance of computing assets, Maintains smooth operation of multi-user computer systems, including coordination with network administrators. Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system performance, installing system wide software and allocate mass storage space. Interacts with users and evaluates vendor products. Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery. Develops and monitors policies and standards for allocation related to the use of computing resources.