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Sr Linux System Engineer Jobs (NOW HIRING)

Diverse Lynx

Linux System Engineer

Addison, IL

$60 - $70/hr

Plano, TX/Hybrid Linux System Engineer Experience Required - 10+ Yrs Responsibilities: * Install, configure, and maintain Linux servers (RHEL, CentOS, Ubuntu, SUSE). * Perform system monitoring ...

FANTOM CORPORATION

Linux System Engineer

Chantilly, VA · On-site

We are seeking a Linux Systems Engineer to support a mission-critical enterprise Identity and Access Management (IAM) platform, ensuring the reliability, security, and performance of enterprise ...

aqua IT

Linux System Engineer

Chantilly, VA

Aqua IT is seeking an experienced Linux Systems Engineer to provide support to a mission critical enterprise identity and access management system. Success in this role will require developing an ...

SolGenie

Linux Cloud System Engineer

Irvine, CA · On-site

Linux Cloud System Engineer Location: Santa Clara CA (Onsite) Duration: Long Term We are seeking a Linux Cloud System Engineer with strong expertise in Linux system administration and cloud ...

Leidos

Senior Linux System Administrator

Alexandria, VA

$107K - $195K/yr

The Senior Linux System Administrator will work within a team engineers, developers and system administrators, adding new capabilities to our enclaves, as well as ensuring the existing systems are ...

Leidos

Senior Linux System Administrator

Washington, DC

$107K - $195K/yr

The Senior Linux System Administrator will work within a team engineers, developers and system administrators, adding new capabilities to our enclaves, as well as ensuring the existing systems are ...

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All JobsSr Linux System Engineer Jobs

Sr Linux System Engineer information

See salary details

$100.5K

$127.9K

$158.5K

How much do sr linux system engineer jobs pay per year?

As of Jun 12, 2026, the average yearly pay for sr linux system engineer in the United States is $127,927.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,000.00 and $138,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Sr Linux System Engineer, and why are they important?

To thrive as a Sr Linux System Engineer, you need advanced knowledge of Linux operating systems, system architecture, scripting (e.g., Bash, Python), and typically a relevant degree or certifications like RHCE. Familiarity with configuration management tools (such as Ansible or Puppet), cloud platforms, and monitoring systems is crucial. Strong troubleshooting, communication, and project management skills help you collaborate effectively and resolve complex issues. These skills are vital to ensure system stability, security, and efficient operation in enterprise environments.

What are some common challenges faced by Sr Linux System Engineers in large-scale enterprise environments?

Sr Linux System Engineers working in large-scale enterprise environments often face challenges such as managing complex system integrations, ensuring high availability and disaster recovery, and automating tasks for efficiency. Balancing security requirements with system performance, troubleshooting issues across distributed systems, and keeping up with rapid changes in technology are also common. Effective collaboration with development, network, and security teams is essential to successfully support and optimize the infrastructure.

What does a Sr Linux System Engineer do?

A Sr Linux System Engineer is responsible for designing, implementing, maintaining, and troubleshooting Linux-based systems within an organization. They manage server infrastructure, ensure system security and stability, and optimize performance. Additionally, they automate processes using scripting, support application deployments, and collaborate with other IT teams to meet business needs. Their expertise is often crucial for high-availability environments and critical system operations.

What is the difference between Sr Linux System Engineer vs Linux System Administrator?

AspectSr Linux System EngineerLinux System Administrator
CertificationsLinux Professional Institute (LPIC), RHCELPIC, RHCE
Work EnvironmentDesign, architecture, troubleshooting complex systemsMaintain, monitor, and support existing systems
ResponsibilitiesSystem design, performance tuning, scriptingSystem setup, user management, routine maintenance
Industry UsageIT, cloud services, enterprise environmentsData centers, corporate IT teams

While both roles require Linux certifications like LPIC or RHCE, Sr Linux System Engineers focus on designing and optimizing systems, whereas Linux System Administrators handle daily maintenance and support tasks. The engineer role involves more strategic planning, while the administrator role emphasizes operational stability.

More about Sr Linux System Engineer jobs
What cities are hiring for Sr Linux System Engineer jobs? Cities with the most Sr Linux System Engineer job openings:
What job categories do people searching Sr Linux System Engineer jobs look for? The top searched job categories for Sr Linux System Engineer jobs are:
Sr Linux System Engineer jobs near you
Infographic showing various Sr Linux System Engineer job openings in the United States as of June 2026, with employment types broken down into 33% Full Time, and 67% Part Time. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $127,927 per year, or $61.5 per hour.
Senior Linux System Administrator

Senior Linux System Administrator

Integration Innovation, Inc.

Huntsville, AL • On-site

Full-time

Medical, Retirement, PTO

Posted 8 days ago

Job description

Overview
i3 is looking for an experienced Senior Linux System Administrator to join our team. In this role, you'll be the go-to person for keeping our mission-critical Linux systems secure, stable, and running smoothly. We work in a dynamic environment supporting multiple organizations, so we need someone who communicates well, adapts quickly, and knows how to operate effectively.
You'll be working closely with our engineering and security teams to troubleshoot complex issues across both Linux and Windows platforms. Because of the nature of the mission, you might occasionally need to jump in during off-hours to provide support, but your primary focus will be day-to-day administration, security, and infrastructure stability.
Responsibilities
  • System Administration & Security: Build and maintain our Linux configurations, locking them down according to DISA STIGs and JSIG requirements. You'll also manage user accounts, permissions, and daily monitoring to make sure our hardware and key processes are highly available.
  • Vulnerability Management: A big part of this job is keeping us secure. You'll run regular ACAS scans, handle system patching, and remediate vulnerabilities.
  • DevOps & Infrastructure: You will own and administer our GitLab environment. This includes managing users, configuring repositories, and supporting CI/CD pipelines, as well as handling containerization and Kubernetes.
  • Operations: You'll take care of routine backups to ensure all our system data is recoverable, and you'll write and maintain the documentation for how our systems are installed and secured.

Qualifications
  • Associate's or Bachelor's degree in Computer Science, IT, or a related field (or equivalent hands-on work experience).
  • 10+ years of Linux systems administrator experience, specifically working inside classified environments.
  • Active Top Secret clearance (including SAP Eligibility).
  • U.S. Citizenship is required.
  • Technical Skills:
    • Deep experience working in a mixed OS environment (Red Hat Enterprise Linux and Windows Server).
    • Strong scripting skills-you should be comfortable writing in Bash, Python, or PowerShell.
    • Real-world experience with GitLab, CI/CD configurations, Kubernetes, and containerization.
    • You need to be heavily familiar with DoD security practices, ACAS, and applying STIGs.
  • Certifications: You must meet industry baseline requirements, which means you need at least a CompTIA Security+ and a Red Hat certification (RHCSA or higher). Network+ and containerization certs are bonus.
  • Security Practices: You need to know the ins and outs of OPSEC and PHYSEC measures and how to conduct yourself professionally in a classified environment.

Preferred:
  • A Red Hat Certified Engineer (RHCE) certification.
  • A Cisco certification (CCNA or above).
  • Hands-on experience with virtualization, specifically VMware (and related certifications).
  • Experience using log centralizing tech like Splunk or the ELK Stack.

Knowledge/Skills
  • Knowledge of office administration and procedures.
  • Exceptional judgment capabilities and relationship management skills.
  • Excellent communication, teamwork, and client service skills; ability to clearly communicate in discussions and written documents, and to deliver feedback clearly and tactfully.
  • Interact with a diverse array of customers and staff in a professional and courteous manner.
  • Work independently with accountability for accurate and complete results.
  • Be extremely organized and exceptionally detail oriented.
  • Work well both independently and in a team environment.
  • Be energized by a fast-paced work environment.
  • Must be able to communicate with others effectively.
  • Analyze information and respond appropriately.
  • Manage time wisely and prioritize tasks.
  • Provide superior customer service.
  • Multi-task in a pleasant manner.
  • Work well under pressure.

PHYSICAL DEMANDS
  • The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.
  • While performing the duties of this job, the employee is regularly required to talk or hear. The employee frequently is required to stand; walk; handle or feel; and reach with hands and arms.
  • The employee is occasionally required to sit; climb or balance; and stoop, kneel, crouch or crawl. The employee must be able to lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.
  • Specific vision abilities required by this job include close vision, distance vision, peripheral vision, depth perception and ability to adjust focus.
  • Regular i3 hours are 8:00 a.m. - 5:00 p.m. Monday-Friday, however, additional hours may be required on occasion. Regular and punctual attendance is required.

About i3
i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic services, electronic warfare and electromagnetic effects analysis, UAS system integration and flight operations, full lifecycle C5ISR engineering services, cybersecurity and IT/IA innovative solutions and virtual training, simulation & serious game development and implementation. We have established a broad offering of products and capabilities collectively providing decades of experience supporting the full complement of DoD military services, Missile Defense Agency, National Aeronautics and Space Administration, and a variety of other Government organizations and private industry customers.
Perks of being a team member owner include:
  • Long-term financial security
  • Higher job satisfaction
  • Greater job security
  • Personal and professional growth
  • Great company culture

Other outstanding benefits:
  • Excellent insurance coverage
  • 401(k) match
  • Generous PTO
  • Health and wellness incentives
  • Tuition and certification reimbursement
  • Countless opportunities to give back to the community through i3 Cares

We work hard. We compete hard. We play hard. Apply now to join us!

Apply