Senior System Administrator

Job ID: 2618093
Location: San Diego, CA, US
Date Posted: 2026-10-19
Category: Information Technology
Subcategory: Sys Administrator
Schedule: Full-Time
Shift: Day Job
Travel: Yes - 25% of the time
Minimum Clearance Required: Top_Secret
Clearance Level Must Be Able to Obtain: TS/SCI
Potential for Remote Work: ORA_ON_SITE
Description
SAIC is seeking a Senior Systems Administrator to support the Naval Information Warfare Center, Pacific (NIWC PAC) Naval Messaging CB ISEA. The work will be conducted ONSITE at the Naval Information Warfare Center, Pacific (NIWC PAC) San Diego, CA, Old Town Center. The SAIC Team provides a full range of engineering, technical support, management, and logistics services in support of the Messaging programs. Support of these systems includes technical support for installations, providing systems and software engineering, software development and infrastructure as code, integration and testing of hardware and software functions, and testing of new baselines and/or new capability of messaging systems.
There will be up to 25% of travel involved
JOB DUTIES:

• Support the analysis and engineering, system architecture, system analysis and design, interface and data architectures, validation and verification, systems integration, system & op. performance analysis, requirements, and network engineering of the implemented networks.
• Candidate will provide systems administration expertise in the development, research of components, functionality, and schedules to provide recommendations to the customer.
• Coordinates, directs and performs complex software installations and upgrades to operating systems and layered software packages.
• Provides training to the fleet on operation and administration of the Naval Messaging systems.
• Schedules installations and upgrades and maintains them in accordance with established IT policies and procedures
• Ensures workstation/server data integrity by evaluating, implementing, and managing appropriate software and hardware solutions of varying complexities.
• Perform testing of applications and messaging systems.
• Maintains technical expertise in all areas of network and computer hardware and software interconnection.
• Evaluates and reports on new technologies to enhance capabilities of the POR system.
• Maintain and document lab systems, provide support for testing, and provide status of progress to the customer.
• Candidates will have experience and familiarity with virtualization (VMWare) and MS environments and possess strong problem-solving skills and the ability to learn new technologies quickly.

Qualifications
REQUIREMENTS:
Education and Experience

• Bachelors and five (5) years or more experience; Masters and three (3) years or more experience; PhD and 0 years related experience
• Candidate should have strong computer and networking skills and demonstrate a working knowledge of current applicable military and commercial standards and specifications.
• Aptitude to program in an administrative language, as well as prepare, test, and deploy scripts aimed at improving efficiencies or correcting problems.
• Detailed understanding and knowledge of Network Security Components and Protocols for firewalls deployed at Operating System and Enterprise Level;
• Knowledge of, and hands on experience implementing IT and Cyber Security best practices
• Understanding of Security Technical Implementation Guide (STIG) to lockdown network equipment
• Candidate must have working knowledge of Microsoft Office (i.e. Visio, Project, Excel, Outlook, Power Point, and Word).
• Excellent Communications Skills are imperative.
• Naval Messaging application administration and operational experience desired.

Clearance:

• Must have an Active Top Secret Clearance to Start
• Must be able to obtain a TS/SCI clearance after start

Certifications:

• Current CompTIA Security+ at a minimum.
• Professional level vendor certifications such as Microsoft or Linux+

Target salary range: $80,001 - $120,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.
SAIC is a premier technology integrator providing full life cycle services and solutions in the technical, engineering, intelligence, and enterprise information technology markets. SAIC is Redefining Ingenuity through its deep customer and domain knowledge to enable the delivery of systems engineering and integration offerings for large, complex projects. SAIC's approximately 15,000 employees are driven by integrity and mission focus to serve customers in the U.S. federal government. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $4.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see .