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Senior Linux Systems Administrator

SAIC

Princeton, NJ

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JOB DETAILS
SALARY
$120,001–$160,000 Per Year
SKILLS
Authentication, Best Practices, CentOS, Chef (Configuration Management), Computer Science, Computer Security, Configuration Management, Customer Relations, Database Administration, Database Clustering, Documentation, Establish Priorities, Federal Government, File Manager Software, GNU Free Documentation License (GFDL), Information Technology & Information Systems, Information Technology Software, Licensing, Linux Administration, Linux Operating System, Multitasking, MySQL, NFS (Network File System), Operating Systems, Oracle, Problem Solving Skills, Puppet (Configuration Management), Purchasing/Procurement, Red Hat Linux Operating System, SSH (Secure Shell), Schedule Development, Smartcards, Software Engineering, Software Installation, Software Patches, System Integration (SI), Systems Administration/Management, Systems Engineering, Systems Maintenance, Systems Scalability, Technical Support, Technical Writing, United States Citizen, VPN (Virtual Private Network), Work From Home
LOCATION
Princeton, NJ
POSTED
Today
Job ID: T2600057

Location: Princeton, NJ, US

Date Posted: 2026-03-05

Category: Information Technology

Subcategory: Sys Administrator

Schedule: Full-Time

Shift: Day Job

Travel: No

Minimum Clearance Required: None

Clearance Level Must Be Able to Obtain: Public Trust

Potential for Remote Work: ORA_ON_SITE

Description
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SAIC is recruiting for a Senior Linux Systems Administrator to join our program as a general technologist to support our NOAA GFDL program in Princeton, NJ serving the NOAA GFDL lab in a highly scientific user and mission driven facility. This individual would support both projects (60%) and user (40%) actives in a high interrupt tiered support environment requiring rapid response to the most complex customer systems inquiries. On a daily basis this individual may divide their time between (1) managing junior Admins to support lower level issues; (2) identifying, evaluating and prioritizing customer problems to ensure that inquiries are resolved appropriately; (3) conducting project work on several complex system projects simultaneously; and (4) managing and actively reporting on project status.

The ideal candidate must be an independent self-starter, be adept at supporting both Linux in a heterogeneous environment, and have excellent customer-facing communication and consultation skills (with managers and/or scientists).

The duties will include, but not be limited to:
  • Providing Mid-Tier to Top-Tier Systems Administration for clients and servers in a heterogeneous environment.
  • Systems Administration - Maintain IT Security posture according to organization requirements, Manage rigorous patching schedule for all systems, Manage existing Patching deployment tools, maintain and enhance current tools, replace the current backup system with a new one.
  • Installing SW packages, compiling where necessary, Maintenance inventory of all assets and applications.
  • Managing smart card authentication infrastructure.
  • Supporting Project (60%) and User (40%) actives in a high interrupt environment.
  • Writing/updating/enhancing system documentation concerning problem resolutions and HPC assets).
  • Writing technical justifications for the procurement of hardware & software.


Qualifications
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Qualifications:
  • B.S. in Computer Science, Information Technology, Software Engineering, or related field and nine (9) years of experience, masters and seven (7) years of experience.
  • Demonstrated proficiency in Linux administration best practices.
  • Demonstrated knowledge of Red Hat Enterprise Linux (RHEL) or derivatives (e.g., AlmaLinux OS, CentOS, Oracle Linux, Rocky Linux) is a plus.
  • Understanding of licensing structures for Red Hat products is a plus.
  • Documented experience with scripting (e.g., shell, bash, tcsh, perl, python, ruby).
  • Documented experience with managing, deploying, or migrating centralized backup system(s) (e.g., Amanda, Bacula, Backup Exec, NetBackup, ReaR).
  • Documented knowledge of configuration management tools (e.g., ansible, chef, puppet, or saltstack).
  • Experience with configuration and support of access methods (e.g., VPN, SSH tunneling).
  • Experience managing and maintaining database clusters, preferably Percona XtraDB/MySQL cluster.
  • Experience managing software scalable network file systems and centralized storage appliances.
  • Experience supporting enterprise logon with smart card authentication on Linux (e.g., BeyondTrust, Centrify, SSSD).
  • U.S. Citizenship with the ability to obtain and maintain a Public Trust Clearance.


Target salary range: $120,001 - $160,000. 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 .

About the Company

S

SAIC

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions. We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.
COMPANY SIZE
10,000 employees or more
INDUSTRY
Computer/IT Services
FOUNDED
2013
WEBSITE
https://jobs.saic.com/

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