Senior Systems Administrator

Job Title: Senior Systems Administrator Job Number: 34871 Job Location: Yorba Linda, CA Job Schedule: 4/10 or 9/80 Clearance: Must Have an Active Secret Clearance to Be Considered Job Description: 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. Essential Functions: 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) Ability to work well with technical and non-technical staff is required. Qualifications: 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. Active Secret Clearance is required. 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 methodologies Minimum DoD8140 Work Role 451-Intermediate certification (Cloud+, GICSP, GSEC, Security+, SSCP) Preferred Additional Skills: 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. In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater D.C, Denver, or NYC areas is Min $102,000.00 - $189,000.00 Max. The salary range for this role in Colorado state, Hawaii, Illinois, Maryland, Minnesota, New York state, Cleveland Ohio, and Vermont is $88,500.00 Min - $164,500.00 Max. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.