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Senior Linux System Administrator Jobs (NOW HIRING)

MANTECH

Senior Linux System Administrator

Laurel, MD · On-site

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure ...

ManTech

Senior Linux System Administrator

Laurel, MD · On-site

$128K - $214K/yr

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure ...

ManTech

Senior Linux System Administrator

Laurel, MD

$128K - $214K/yr

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure ...

ManTech

Senior Linux System Administrator

Laurel, MD · On-site

$128K - $214K/yr

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure ...

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How much do senior linux system administrator jobs pay per year?

As of Jun 6, 2026, the average yearly pay for senior linux system administrator in the United States is $127,228.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,000.00 and $150,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the Senior Linux System Administrator position, and why are they important?

To thrive as a Senior Linux System Administrator, you need deep expertise in Linux/UNIX system administration, scripting, networking, and troubleshooting, typically backed by several years of industry experience and a relevant degree or certifications like RHCE or CompTIA Linux+. Proficiency with tools such as Ansible, Puppet, Docker, and monitoring platforms, as well as experience with cloud environments, is highly valued. Strong problem-solving abilities, communication skills, and the capacity to mentor junior team members are crucial soft skills. These abilities are essential for ensuring reliable system uptime, seamless team collaboration, and effective response to complex IT challenges.

What is a Senior Linux System Administrator job?

A Senior Linux System Administrator is responsible for managing, configuring, and maintaining Linux-based systems and servers. They handle system performance tuning, security hardening, troubleshooting, and automation through scripting and configuration management tools. Additionally, they oversee backups, software updates, and infrastructure reliability. This role often involves mentoring junior administrators and collaborating with development and IT teams to support business operations.

What are typical daily responsibilities for a Senior Linux System Administrator?

Senior Linux System Administrators are responsible for managing, maintaining, and optimizing Linux-based servers and infrastructure. Their daily tasks often include monitoring system performance, managing user permissions, applying security patches, automating processes through scripting, and troubleshooting technical issues. They regularly collaborate with developer, security, and operations teams to support new deployments and ensure system reliability. Additionally, they may mentor junior administrators and contribute to designing infrastructure improvements, making this a dynamic and influential role within IT operations.

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Senior Linux System Administrator jobs near you
Infographic showing various Senior Linux System Administrator job openings in the United States as of May 2026, with employment types broken down into 1% As Needed, 51% Full Time, 38% Part Time, 7% Contract, and 3% Nights. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution, with an average salary of $127,228 per year, or $61.2 per hour.
Senior Linux System Administrator

Senior Linux System Administrator

Edgewater Federal Solutions, Inc.

Albuquerque, NM • On-site

Full-time

Posted 3 days ago

Job description

Overview
Edgewater Federal Solutions is seeking a Senior Linux System Administrator to support a major national laboratory.
Responsibilities
  • Monitor, maintain, and repair physical and virtual server systems.
  • Resolve technical issues affecting hardware, operating systems, or applications.
  • Apply operating system or application patches, install or replace hardware, and implement configuration changes to improve or restore system performance.
  • Perform system capacity analysis and planning.
  • Assist users in accessing and using business systems.
  • Develop instructions and procedures for system maintenance, create scripts to automate monitoring and repair tasks, and conduct quality assurance checks.
  • Collaborate with customers, subject matter experts, and architects to analyze, evaluate, and optimize systems.
  • Contribute to process development and system improvement efforts

Qualifications
  • Bachelor's degree in relevant discipline and a minimum of 4 years of directly related experience that demonstrates the knowledge, skills, and ability to perform the duties.
  • Related experience may be substituted for relevant education and vice versa.
  • Ability to obtain & maintain a U.S. Dept. of Energy Clearance
  • U.S. Citizenship is required.

Required Skills:
  • Proficient with major distributions (e.g., Red Hat, CentOS, Ubuntu).
  • Managing users, groups, permissions, and file systems.
  • Shell Scripting-Writing and debugging Bash or other shell scripts for automation.
  • Package Management-Using tools like yum, apt, rpm, dpkg for installing and updating software.
  • Networking-Configuring network interfaces, firewalls (iptables, firewalld), DNS, routing, and troubleshooting connectivity issues.
  • System Monitoring and Performance Tuning-Using tools like top, htop, vmstat, iostat, sar, and monitoring solutions (Nagios, Prometheus).
  • Storage Management-Managing disks, partitions, LVM, RAID, NFS, and mounting file systems.
  • Security-Implementing SELinux/AppArmor, SSH hardening, user authentication, and basic vulnerability assessment.
  • Backup and Recovery-Familiarity with backup tools and disaster recovery planning.
  • Configuration Management-Experience with tools like Ansible, Puppet, or Chef for automated deployments.
  • Virtualization and Containers-Working knowledge of KVM, VMware, Docker, and Kubernetes basics.
  • Log Management-Using syslog, journald, and log analysis tools.
  • Troubleshooting-Diagnosing and resolving system and application issues efficiently.
  • Analytical thinking to diagnose complex issues.
  • Clear documentation and ability to explain technical concepts to non-technical stakeholders.
  • Working effectively within cross-functional teams.
  • Prioritizing tasks and managing multiple responsibilities.
  • Willingness to learn new technologies and adapt to changing environments.

About Us:
Edgewater Federal Solutions is a privately held government contracting firm located in Frederick, MD. The company was founded in 2002 with the vision of being highly recognized and admired for supporting customer missions through employee empowerment, exceptional services and timely delivery. Edgewater Federal Solutions is ISO 9001, 20000-1, 270001 certified, appraised at CMMI Level 3 Maturity for Development and Services, and has been named in the Top Workplaces in the Greater Washington Area Small Companies for 2018 through 2025.
It has been and continues to be the policy of Edgewater Federal Solutions to provide equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, marital status, veteran status, and/or other statuses protected by applicable law. #LI-VA1

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