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Linux Systems Administration Jobs in California (NOW HIRING)

This hands-on role requires deep expertise in Linux systems administration, security, and automation to support our mission-critical cybersecurity applications. Key Responsibilities * Install ...

Sr Systems Administrator

Long Beach, CA

$90K - $122K/yr

Take ownership of Linux systems administration-deploying, configuring, automating, and maintaining production systems across on-prem and cloud environments (Azure/GCP) * Provide advanced support for ...

Sr Linux Administrator

Long Beach, CA · On-site

$103K - $155K/yr

Take ownership of Linux systems administration-deploying, configuring, automating, and maintaining production systems across on-prem and cloud environments (Azure/GCP) * Provide advanced support for ...

Take ownership of Linux systems administration--deploying, configuring, automating, and maintaining production systems across on-prem and cloud environments (Azure/GCP) * Provide advanced support for ...

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Linux Systems Administration information

What is Linux systems administration?

Linux Systems Administration involves managing, configuring, and maintaining computer systems and servers that run on the Linux operating system. Administrators handle tasks such as installing software, managing user accounts, ensuring system security, monitoring performance, and troubleshooting issues. They are also responsible for performing regular updates and backups, as well as setting up network services and ensuring the stability and reliability of the systems. This role is essential in organizations that rely on Linux servers for their IT infrastructure.

What are the key skills and qualifications needed to thrive as a Linux systems administrator?

To thrive as a Linux Systems Administrator, you need a deep understanding of Linux operating systems, scripting, networking, and troubleshooting, often backed by a degree in computer science or related certifications like CompTIA Linux+ or Red Hat Certified System Administrator (RHCSA). Familiarity with tools such as Bash, Ansible, Docker, and monitoring systems is typically required. Problem-solving skills, attention to detail, and effective communication are crucial soft skills in this role. These skills ensure stable, secure, and efficient system operations, which are critical for supporting business infrastructure and minimizing downtime.

What are some common challenges faced by Linux systems administrators, and how can they be addressed on the job?

Linux Systems Administrators often encounter challenges such as troubleshooting complex system issues, managing security updates, and ensuring high system uptime. Staying proactive by regularly monitoring system performance, automating routine tasks with scripts, and keeping up-to-date with the latest security patches can help address these challenges. Collaboration with development and network teams is also crucial to quickly resolve cross-functional issues and maintain a secure, stable environment. Continuous learning and participation in open-source communities are valuable for staying ahead of emerging technologies and best practices.

What is the difference between Linux Systems Administration vs Network Administrator?

AspectLinux Systems AdministrationNetwork Administrator
CertificationsLinux+, LPIC, RHCSACompTIA Network+, Cisco CCNA
Work EnvironmentServers, data centers, cloud platformsNetworking hardware, routers, switches
ResponsibilitiesManaging Linux servers, scripting, securityConfiguring networks, troubleshooting connectivity
Industry UsageIT, hosting, cloud servicesTelecommunications, enterprise networks

Linux Systems Administrators focus on managing Linux servers, security, and scripting, often working in data centers and cloud environments. Network Administrators primarily handle network infrastructure, hardware, and connectivity issues. While both roles require technical certifications and involve IT infrastructure, Linux Systems Administration emphasizes server management, whereas Network Administration centers on network connectivity and hardware.

Are Linux systems administrators in high demand?

Linux systems administrators are in high demand due to the widespread use of Linux in servers, cloud infrastructure, and cybersecurity. Skills in scripting, networking, and certifications like RHCE or CompTIA Linux+ can enhance job prospects in this field.

How much do Linux systems administrators make?

Linux systems administrators typically earn between $70,000 and $120,000 annually, depending on experience, certifications, and location. Entry-level positions may start lower, while experienced professionals with advanced skills or certifications like RHCE or LPIC can earn higher salaries. Salary also varies based on the complexity of the environment and the size of the organization.

Is Linux systems administration a good career?

Linux systems administration is a stable and in-demand career, as many organizations rely on Linux servers for their infrastructure. It requires knowledge of command-line tools, scripting, and certifications like CompTIA Linux+ or LPIC, and offers opportunities for specialization and advancement in IT environments.

What does a Linux Systems Administrator do?

A Linux Systems Administrator manages and maintains Linux-based servers and infrastructure, ensuring system stability, security, and performance. They install, configure, update, and troubleshoot operating systems and related software, often using tools like shell scripting and monitoring utilities. Certifications such as LPIC or RHCSA can enhance their expertise, and they typically work in data centers or IT environments with a focus on uptime and security.
Infographic showing various Linux Systems Administration job openings in California as of August 2026, with employment types broken down into 80% Full Time, 14% Part Time, 5% Contract, and 1% Nights. Highlights an 86% Physical, 2% Hybrid, and 12% Remote job distribution.

Principal Linux Systems Administration - TS/SCI

Northrop Grumman Corporation

Redondo Beach, CA

Full-time

Medical, Life, Retirement, PTO

Posted 11 days ago


Northrop Grumman rating

8.3

Company rating: 8.3 out of 10

Based on 368 frontline employees who took The Breakroom Quiz

66th of 545 rated manufacturers


Job description

RELOCATION ASSISTANCE: No relocation assistance availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the TimeDescriptionAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

At the heart of Defining Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and secure technological solutions to enable strategic objectives. We're looking for innovators who can help us keep building on our wide portfolio of secure, affordable, integrated, and multi-domain systems and technologies that fuel those missions. By joining in our shared mission, we will support yours by expanding your personal network and developing skills, whether you are new to the field or an industry thought leader. At Northrop Grumman, you will have the resources, support, and team to do some of the best work of your career.

The Northrop Grumman CIDO Classified Solutions team is seeking a Principal Computer Systems Analyst - Linux Systems Administrator to support information system lifecycle activities. The selected candidate will be required to work on-site, full-time at our Redondo Beach, CA location.

The responsibilities of this role include, but are not limited to, the following:

  • Perform as a Principal Computer Systems Analyst - Linux in support of classified government contracts.

  • Exhibits good communication skills, an energetic approach, and patience with customers.

  • Establishes and maintains high levels of customer satisfaction according to defined objectives while adhering to established policies.

  • Report task statuses as required for all recurring and non-recurring efforts in written and oral format.

  • Able to support multiple networks, ensuring necessary Linux administration tasks are completed; coordinating with others as necessary, working under minimal direction.

  • Maintain operations of multi-user computer systems working with system engineers, PC desktop technicians, networking engineers, project managers, end users, and IT/Cyber management.

  • Assist with review of internal customer requirements, making recommendations for hardware, software, system component purchases.

  • Maintain and provide reliability of systems through installation, upgrading/patching, monitoring, problem resolution, and configuration management.

  • Provide and maintain backup and recovery services; manage file systems and disk space; manage virus protection on a routine basis.

  • Test new releases of products to ensure compatibility and minimize user impact.

  • Develop and maintain technical documentation of system processes and procedures.

  • Adhere to strict Information Systems security guidelines in all cases, supporting Computer Security with inputs to documentation, as required.

  • Maintain security audit and logging information on all classified networked and standalone computers as directed by the Information Systems Security Manager (ISSM).

  • Work across disciplines to isolate issues between software, firmware, and hardware, between software and operating systems, between networks and applications, and between one-time events and recurrent systematic problems.

  • Support environments by means of ticketing requirements systems (ServiceNow, JIRA, etc.)

  • Raises issues that require senior level attention or involvement.

  • Lifts and moves equipment up to 50 pounds.

  • Work after hours, and weekends, as needed.

Note: Due to the classified nature of the work being performed, this position does not offer any virtual or telecommute working options. Applicants are encouraged to apply, only if they are willing to work on-site.

Basic Qualifications:

  • Master's degree with 2 years of relevant IT experience; OR a Bachelor's degree with 4 Years of relevant IT experience; OR an Associates with 6 years of relevant IT experience; OR a High School Diploma/GED (or equivalent) with 7 years of relevant IT experience is required
  • Linux Server Administration experience in a classified environmentis needed
  • Candidates must meet the U.S.Government 8140 requirements (8570 equivalent) for a Linux Systems Administrator - IAT level IIcertification at a minimum (examples: Security+ CE, CND, CCNA Security)
  • Candidates must have a current U.S. Government Top Secret level security clearance to include SCI access level eligibility (at a minimum) in order to be considered
  • Must have the ability to obtain, and maintain, a CI-Polygraph as a condition of continued employment

Preferred Qualifications:

  • The ideal candidate will have 6 years of classified Linux Systems Administration to include a Bachelor's degree in Information Technology and both a Security+ and a RHCSA certification
  • Experience with bare medal Linux builds
  • Current TS/SCI with a CI-Polygraphpreferred
  • Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF, STIG, JAFAN, or JSIG information system environments
  • Current Virtualization experience and containerization (Docker, Kubernetes, etc.)
  • Knowledge of networking, including subnets, routing, VLANs and VTCs
  • VMWare experience with current version
  • Knowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk)
  • Scripting experience
  • Operating System Cross-platform awareness (i.e. two or more: Windows, Linux, Solaris, OSX, UNIX, etc.)
  • Experience with the creation and deployment of system images in an enterprise environment
  • Experience with Assessment & Authorization process

We offer flexible work arrangements, phenomenal learning opportunities, exposure to a wide variety of projects and customers, and a very friendly team environment. At Northrop Grumman, we are on the cutting edge of innovation. Our diverse portfolio of programs means there are endless paths to cultivate your career. We also offer exceptional benefits/healthcare, a 9/80 work schedule, and a great 401k matching program. Come join us!

Primary Level Salary Range: $103,600.00 - $155,400.00The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business.The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

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About Northrop Grumman

Sourced by ZipRecruiter

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work - and we have an insatiable drive to do what others think is impossible.

Industry

Space research administration

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US

Year founded

1939