Systems Administrator Senior

Leidos; California; On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos is seeking a System Administrator Senior for the SMIT program at Camp Pendleton, CA. The role coordinates operational support across LAN/BAN/WAN, influencing tactical and strategic directions for emerging technologies to support Navy shore networks.

Responsibilities include evaluating new technologies, mentoring teams, and ensuring efficient resource use while aligning with DoD cyber and network standards in a large-scale defense IT environment.

Qualifications

• Bachelor’s Degree in Computer Science, MIS, Business or related field and 10 years of relevant experience.
• US Citizen with an active DoD Top-Secret/SCI security clearance.
• Specialized experience in the performance and configuration of networks as well as the integration and test of complex large-scale computer integrated networks.
• Must possess a Security+ certification Must possess an Operating System (OS)/Application Certification.

Responsibilities

• Research, analyze, and recommend new operational support technologies, tools, and techniques.
• Coach others on the application of new operational support technologies.
• Review distributed computing and network designs to select appropriate operational support strategies and ensure efficient use of resources.
• Conduct system support design and performance evaluation reviews.
• Identify, develop, and update operational support standards and procedures.
• Participate with corporate strategic planning teams.
• Keep abreast of emerging operational support technologies and industry trends.
• Recommend price/performance improvement opportunities.

Skills

Security+ certification

Top-Secret/SCI clearance

Education

Bachelor’s Degree in Computer Science, MIS, Business or related field

Tools

OS/Application Certification

Network design & testing

Job description

Leidos is looking to hire a System Administrator Senior in Camp Pendleton, CA to join our SMIT program. The qualified candidate will coordinate the operational support and implementation activities for Local Area Network (LAN), Base Area Network (BAN), and Wide Area Network (WAN) service offerings encompassing heterogeneous platforms. The Systems Administrator Senior will also assist the government in determining tactical and strategic direction of the organization as it relates to emerging operational support technologies. SMIT is the largest IT services program for the Navy. Under the Service Management, Integration, and Transport portion of NGEN-R, the Leidos team will deliver the core backbone of the Navy-Marine Corps Intranet, including cybersecurity services, network operations, service desk, and data transport. Ultimately, Leidos will support the Navy in unifying its shore-based networks and data management to improve capability and service.

Primary Responsibilities

• Research, analyze, and recommend new operational support technologies, tools, and techniques.
• Coach others on the application of new operational support technologies.
• Review distributed computing and network designs to select appropriate operational support strategies and ensure efficient use of resources.
• Conduct system support design and performance evaluation reviews.
• Identify, develop, and update operational support standards and procedures.
• Participate with corporate strategic planning teams.
• Keep abreast of emerging operational support technologies and industry trends.
• Recommend price/performance improvement opportunities.

Basic Qualifications

• Bachelor’s Degree in Computer Science, MIS, Business or related field and 10 years of relevant experience.
• Additional experience may be substituted in lieu of degree.
• US Citizen with an active DoD Top-Secret/SCI security clearance.
• Specialized experience in the performance and configuration of networks as well as the integration and test of complex large-scale computer integrated networks.
• Must possess a Security+ certification Must possess an Operating System (OS)/Application Certification.

Pay Range

Pay Range: Pay Range $92,300.00 - $166,850.00

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Employment Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.