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Linux System Administrator

Responsibilities

Description:As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted and highly differentiated national security solutions and technologies that keep people safe and secure. Peraton serves as a valued partner to essential government agencies across the intelligence, space, cyber, defense, civilian, health, and state and local markets. Peraton is seeking a Linux System Administrator to join our team of qualified, diverse individuals.

What you will do:• Provision, manage, and support Red Hat Enterprise Linux (RHEL) and Ubuntu servers across several internet-connected and internet-disconnected networks.• Develop, utilize, and maintain Ansible Playbooks to secure, patch, and configure Linux servers.• Manage Kubernetes clusters as well as the workloads deployed on the clusters.• Manage and configure connected services such as network adapters, storage, and firewalls.• Deploy, configure, and support monitoring capabilities to detect anomalous conditions or service disruptions.• Investigate service disruptions and provide root cause analysis reports and implement additional steps to prevent subsequent issues.• Support deployments of new hardware and software applications and appliances.

 

Schedule:• Core hours are 0930-1430 Monday-Friday to ensure overlap with the team, attendance is expected outside of this window as needed to support meetings, deployments, and team activities.• The system administration team is expected to have on-site coverage 0600-1800 Monday-Friday and schedules will be coordinated with other members of the team to ensure this coverage.

Qualifications

Required Qualifications:• Minimum 5 years with BS/BA; 3 years with MS/MA; 0 years with PhD. A degree from an ABET or NCAE accredited institution in one of the following fields is highly desired- Information Technology, Computer Science, Software Engineering, Information Systems, Data Science, or Cybersecurity.• Clearance Requirement: Active Secret.• Certification Requirements: Active IAT Level II (Security+) and one or more of the following - SecurityX / CASP+, CCNP Security, CCSP, FITSP-O, or GFACT.• Strong oral and written communications skills.

 

Required Technical Qualifications:• Expertise with Configuration as Code (CaC) tooling (Ansible preferred).• Expertise managing Red Hat Enterprise Linux (RHEL) and Ubuntu systems on disconnected environments.• Knowledge of computer networking concepts and protocols, and network security methodologies.• Knowledge of risk management processes.• Knowledge of national and international laws, regulations, policies and ethics as they relate to cybersecurity.• Knowledge of cybersecurity principles.

 

Preferred Technical Qualifications:• Experience with Infrastructure as Code (IaC) tooling, Terraform preferred.• Experience administering Kubernetes clusters and services.• Experience managing secure computing environments to adhere with DISA STIGs and NIST 800-53 controls.• Experience monitoring system uptime and performance with tools such as Splunk, Grafana, and SolarWinds.• Experience providing detailed technical after-action reports with root cause analysis after outage or security incidents.• Familiarity with host-level networking such as instance firewalls.• Familiarity with storage provider management such as Network File Systems (NFS).• Familiarity with source code management tooling such as GitHub or GitLab.

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$104,000 - $166,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.

Average salary estimate

$135000 / YEARLY (est.)
min
max
$104000K
$166000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

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Our mission is to protect and promote freedom around the world by Securing our future, Connecting our world, Safeguarding our enterprise, Protecting our borders, Enabling commerce, Enhancing human knowledge, and Protecting our citizens.

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Full-time, onsite
DATE POSTED
October 10, 2025
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