Systems Administrator Senior

Digitailor; Oceanside (CA); On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos is seeking a Senior System Administrator to join the SMIT program at Camp Pendleton, CA. The role focuses on coordinating operational support for LAN/BAN/WAN across heterogeneous platforms, with involvement in strategic direction and technology adoption for Navy IT services.

Qualifications include a Bachelor's degree, 10 years' experience, US citizenship with active DoD Top-Secret/SCI clearance, and Security+ plus OS/Application certifications. Pay range disclosed: $92,300 to $166,850.

Qualifications

• Bachelor’s Degree in Computer Science, MIS, Business or related field.
• US Citizen with an active DoD Top-Secret/SCI clearance.
• Specialized experience in the performance and configuration of networks and large-scale computer networks.
• Security+ certification.
• Operating System/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

Network administration

Security+ certification

DoD clearance

Education

Bachelor's Degree in Computer Science/MIS/Business

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 include but are not limited to:

• 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.

NGEN If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting: October 29, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range

Pay Range $92,300.00 - $166,850.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.