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Senior Linux Systems Engineer Jobs in Irvine, CA

Lereta

Linux Systems Engineer

Pomona, CA · On-site

$95K - $127K/yr

LERETA is seeking a Linux Systems Engineer to support and enhance our enterprise infrastructure environments. The role is responsible for the design, implementation, and ongoing support of Linux ...

Relativity Space

Sr Linux Administrator

Long Beach, CA · On-site

Partner closely with senior systems engineers (Linux, Windows, Infrastructure) to operationalize designs and ensure seamless handoff between system architecture and system administration * Mentor ...

Bowhead

Red Hat Certified Engineer (RHCE)

Corona, CA · On-site

$200K - $240K/yr

Overview Bowhead seeks a Red Hat Certified Engineer (RHCE) to join our team on the Corona ... The Senior Linux & OpenShift Systems Administrator reports to the Program Manager or IT Lead. Other ...

Bowhead

Red Hat Certified Engineer (RHCE)

Corona, CA · On-site

$200K - $240K/yr

Overview Bowhead seeks a Red Hat Certified Engineer (RHCE) to join our team on the Corona ... The Senior Linux & OpenShift Systems Administrator reports to the Program Manager or IT Lead. Other ...

Bowhead

Red Hat Certified Engineer (RHCE)

Corona, CA · On-site

$200K - $240K/yr

... senior-level administration, engineering, and operational support for Linux-based enterprise systems and container platforms supporting mission-critical government and DoD programs and serve as a ...

Relativity Space

Sr Linux Administrator

Long Beach, CA · On-site

$103K - $155K/yr

Partner closely with senior systems engineers (Linux, Windows, Infrastructure) to operationalize designs and ensure seamless handoff between system architecture and system administration * Mentor ...

Relativity Space

Sr Linux Administrator

Long Beach, CA · On-site

$103K - $155K/yr

Partner closely with senior systems engineers (Linux, Windows, Infrastructure) to operationalize designs and ensure seamless handoff between system architecture and system administration * Mentor ...

Relativity Space

Sr Linux Administrator

Long Beach, CA · On-site

$103K - $155K/yr

Partner closely with senior systems engineers (Linux, Windows, Infrastructure) to operationalize designs and ensure seamless handoff between system architecture and system administration * Mentor ...

SolGenie

Linux Cloud System Engineer

Irvine, CA · On-site

This role requires a proactive engineer who can manage, monitor, and troubleshoot infrastructure systems in a production environment. Responsibilities: * Perform Linux system administration including ...

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All JobsLinux Systems Engineer JobsSenior Linux Systems Engineer JobsSenior Linux Systems Engineer Jobs in Irvine, CA

Senior Linux Systems Engineer information

See Irvine, CA salary details

$107.9K

$137.3K

$170.1K

How much do senior linux systems engineer jobs pay per year?

As of Aug 20, 2026, the average yearly pay for senior linux systems engineer in Irvine, CA is $137,315.00, according to ZipRecruiter salary data. Most workers in this role earn between $126,700.00 and $148,100.00 per year, depending on experience, location, and employer.

What does a senior Linux systems engineer do?

A Senior Linux Systems Engineer is responsible for designing, implementing, and maintaining complex Linux-based systems and servers within an organization. Their duties often include configuring system architecture, ensuring system security and reliability, automating processes with scripting, and troubleshooting advanced issues. They may also mentor junior engineers, manage large-scale deployments, and contribute to planning the IT infrastructure. This role requires deep expertise in Linux operating systems, networking, and system optimization.

How does a senior Linux systems engineer typically collaborate with development and security teams?

A Senior Linux Systems Engineer often works closely with development teams to ensure that infrastructure is tailored to the needs of applications, facilitating smooth deployments and resolving compatibility issues. Collaboration with security teams is also essential, as they help implement and maintain system hardening, intrusion detection, and compliance with security policies. Regular meetings, ticketing systems, and cross-functional project planning are common ways these teams work together to ensure system reliability, security, and performance.

What are the key skills and qualifications needed to thrive as a senior Linux systems engineer, and why are they important?

To thrive as a Senior Linux Systems Engineer, you need expert-level knowledge of Linux/Unix systems administration, scripting languages (such as Bash or Python), and a degree in computer science or a related field. Familiarity with configuration management tools (like Ansible or Puppet), cloud platforms (AWS, Azure), and relevant certifications (e.g., RHCE, LFCS) are highly valued. Strong problem-solving abilities, effective communication, and the ability to mentor junior engineers distinguish top performers in this role. These skills and qualities are vital for ensuring system reliability, optimizing performance, and driving team success in complex IT environments.

What is the difference between Senior Linux Systems Engineer vs Linux Systems Administrator?

AspectSenior Linux Systems EngineerLinux Systems Administrator
CertificationsLinux Professional Institute Certification (LPIC), RHCELPIC, RHCE often preferred
Work EnvironmentDesigning, implementing, and optimizing Linux infrastructureMaintaining, monitoring, and supporting Linux systems
ResponsibilitiesAdvanced system architecture, scripting, troubleshooting complex issuesRoutine system setup, updates, user management
Industry UsageTech companies, data centers, cloud providersEnterprises, hosting providers, IT departments

The main difference is that Senior Linux Systems Engineers focus on designing and optimizing Linux infrastructure, while Linux Systems Administrators handle daily maintenance and support tasks. The engineer role involves more strategic planning and complex problem-solving, whereas the administrator role emphasizes operational support and system stability.

What cities near Irvine, CA are hiring for Senior Linux Systems Engineer jobs?

Cities near Irvine, CA with the most Senior Linux Systems Engineer job openings:

Senior Linux Systems Engineer jobs near you
Infographic showing various Senior Linux Systems Engineer job openings in Irvine, CA as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 11% Part Time, 4% Contract, and 1% Nights. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $137,315 per year, or $66 per hour.

Senior Linux Systems Engineer, Connected Warfare

Anduril Industries

Costa Mesa, CA

Full-time

Re-posted 24 days ago

Anduril rating

9.1

Company rating: 9.1 out of 10

Anduril

Based on 17 frontline employees who took The Breakroom Quiz

7.4

Company rating compared to similar companies: 7.4 out of 10

Manufacturers average

Based on 75,712 frontline employees who took The Breakroom Quiz

Job description

ABOUT THE JOB

Anduril is seeking a Senior Linux Systems Engineer to directly support our most sensitive programs. Within the Connected Warfare department, you will be a part of the Edge Compute and Communications (ECC) team, where we're building and maintaining critical tactical infrastructure for our UAS products. You will have the opportunity to work with and learn from some of the world's best engineers and cybersecurity professionals as you help to implement cutting edge systems. You will work directly with customers and systems deployed across the globe in support of national security missions all while gaining invaluable experience navigating complex cybersecurity regulation frameworks. If this starts to excite you, we invite you to keep reading further!

WHAT YOU'LL DO
  • Serve as subject matter expert for for the server and systems ecosystem.
  • Build technology infrastructure at all classification levels including SAP/SCI .
  • Design, install, operate, maintain, and troubleshoot IT systems consisting of various of operating systems with a focus on Linux.
  • Architect and execute on server/storage infrastructure related to program specific needs.
  • Support engineering and deployment efforts for multiple classified programs.
  • Work in close coordination with the ISSM and ISSO in monitoring the information system(s) implementing configuration management across authorization boundaries.
  • Define, document and follow standards and best practices for systems design, testing, and implementation.
  • Drive scripting and automation to develop solutions to common problems.
  • Provision cloud based resources in both Infrastructure as as Service and Platform as a Service environments.
REQUIRED QUALIFICATIONS
  • 7+ years of experience in IT infrastructure engineering.
  • Desire to cross train into other engineering disciplines (eg network, data links).
  • Ability to operate independently in a fluid environment.
  • Advanced scripting skills with both Bash and Powershell to automated and solve recurring tasks
  • Strong working knowledge of clustered server infrastructure.
  • Deep understanding of Active Directory and multi-site architecture.
  • Previous experience deploying IT systems in an air gapped environments, as well as in tactical / austere environments.
  • Professional experience with RHEL Image Builder.
  • Able to obtain and maintain a U.S. Top Secret security clearance or higher, if not already at this level.
  • Ability to lift 25 pounds.
  • Willingness to travel up to 15% of the time, and excitement to work in our headquarters in Costa Mesa, CA, the majority of the time! 
PREFERRED QUALIFICATIONS
  • High Performance Compute (HPC) with CPU and GPU based clusters
  • Understanding of Datacenter storage and networking fabric
  • Currently possesses and is able to maintain at least an active U.S. Secret security clearance.

Working at Anduril

About Anduril, in their own words

From Anduril

As the world enters an era of strategic competition, Anduril delivers cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the warfighter in months, not years.

What Anduril employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Anduril Industries logo

About Anduril Industries

Sourced by ZipRecruiter

Anduril Industries is a trailblazer in the technology industry based in Costa Mesa, CA, US. Founded in 2017 by Palmer Luckey, the creator of Oculus VR, the company focuses on developing innovative technology to equip and empower those in the defense sector. Its primary products include cutting-edge autonomous systems and AI software that assist in combating threats to national and global security. The mission of Anduril Industries is to integrate technology and defense by building transformative, scalable solutions that ensure a safer world.

Industry

Guided missile and space vehicle manufacturing

Company size

501 - 1,000 Employees

Headquarters location

Costa Mesa, CA, US

Year founded

2017

Social media

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