Senior Systems Administrator

L3Harris•Yorba Linda, CA

32d

About The Position

During its 120-year history, L3Harris has transformed communications and information technology. L3Harris is a proven leader in tactical communications, geospatial systems and services, air traffic management, environmental solutions, avionics and electronic warfare, and space and intelligence. From ocean to orbit and everywhere in between, we provide mission-critical solutions to connect, inform and protect the world. On the L3Harris team, your job is to secure the world. We don't work here just for the advanced technology and equipment: we work here because we know what - and who - we're protecting! From families to the intelligence community, and from our climate to our men and women in uniform - we're making the world a safer place! Perform system administration and helpdesk type tasks under the supervision of a manager. The work includes installation, upgrades, repair and maintenance of servers, desktops, laptops, disconnected Local Area Networks (LANs) and networked resources attached to a Wide Area Network (WAN). Support for network backup systems, configuration support for user applications, troubleshooting and/or debugging network-related problems, inventory management and maintenance of the network's authorization infrastructure.

Requirements

Bachelor’s Degree and a minimum of 6 years of prior related experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
6-8 years of expert experience with operating systems such as Windows Server 2019/2022/2025, Windows 10/11, Red Hat Enterprise Linux 8/9
Advanced understanding and implementation of DISA System Technical Implementation Guides (STIGs)
6 -8 years of experience with GPO management and implementation
Knowledgable experience with RHEL LDAP/AD authentication protocols and methodoligies
Secret Clearance is required day 1
Minimum DoD8140 Work Role 451-Intermediate certification (Cloud+, GICSP, GSEC, Security+, SSCP)
Ability to work well with technical and non-technical staff is required.

Nice To Haves

Advanced knowledge of Veritas/Arctera Backup Exec or other backup technologies and methodologies
Experience with TrueNAS storage technologies
Experience with RedHat Satellite
Experience with Ansible Tower
Experience with SharePoint Administration/Development
Web Application Management (Apache/Java)
Very good written and verbal communication skills required.

Responsibilities

Perform system administration and helpdesk type tasks under the supervision of a manager.
Supporting servers, desktop and laptop PCs
Installation, upgrades, repair and maintenance of disconnected Local Area Networks (LANs) and networked resources attached to a Wide Area Network (WAN)
Support for network backup systems (Veeam/Backup Exec)
Configuration support for user applications
IT asset management
Rotational after-hours
Patch Management (SCCM/MECM)