Linux Systems Administrator (RHEL)

Peraton; Chantilly (VA); On-site; USD 135,000 - 216,000; Full time

Benefits offered by this job

PTO 25 days

Enhanced benefits

Bonus plan eligible

Job summary

Peraton is seeking a Senior RHEL System Administrator to manage and secure Red Hat Enterprise Linux (RHEL) systems within a dedicated production network. This hands-on role emphasizes automation, repeatable processes, and reliable infrastructure across on-prem, cloud, and lab environments.

You will operate in an Agile setting on a mission-critical program, collaborating with stakeholders to deliver scalable solutions.

Qualifications

• Requires Top-Secret clearance with ability to obtain TS/SCI
• Bachelor's degree with 8+ years experience or equivalent
• Proficiency with RHEL 8.x+ and system administration
• Experience with Red Hat Satellite Server and Ansible
• Knowledge of Linux-based cloud, on-prem, and lab environments
• Experience mentoring junior/mid system administrators
• Strong security compliance and patch management practices

Responsibilities

• Perform maintenance, support, and enhancements to RHEL production systems
• Analyze architecture to improve reliability, availability, monitoring, and automation
• Automate tasks using Ansible playbooks
• Manage RHEL patching via Red Hat Satellite and Ansible
• Operate to ensure high availability, performance, and scalability
• Mentor junior system administrators
• Maintain a weekly schedule within core hours with after-hours work as needed
• Configure, manage, and harden RHEL OS and storage allocations

Skills

RHEL expert

Ansible

Red Hat Satellite

Automation

Security compliance

LS Linux systems

Mentoring juniors

CI/CD tooling

Education

Bachelor's degree in related field

Associates degree with 10+ years experience

Master's degree in related field

Tools

Git

OpenStack

Job description

Responsibilities

Peraton is hiring a Senior RHEL System Administrator to manage and administer Red Hat Enterprise Linux (RHEL) systems and infrastructure within a dedicated production network. This is a hands-on role focused on developing and deploying repeatable processes, automation tools, and infrastructure to enhance system reliability, security, and scalability. As part of our classified Operational Support Network team, you will operate in an Agile environment, supporting a mission-critical program while collaborating with various stakeholders. Your expertise will directly contribute to delivering innovative solutions, optimizing system performance, and ensuring operational success.

Responsibilities:

• Perform ongoing maintenance, support, and enhancements to RHEL production systems, ensuring compliance with security authorizations


• Analyze existing RHEL system architecture and work with cross-functional teams to improve reliability, availability, monitoring, and automation


• Partner with engineering teams to enhance RHEL platform stability and simplify architectural complexity


• Automate RHEL system administration tasks using Ansible playbooks to improve efficiency and reduce manual intervention


• Manage RHEL patch management and security updates through Red Hat Satellite and Ansible


• Oversee and optimize RHEL systems, ensuring high availability, performance, and scalability


• Conduct daily RHEL system monitoring and perform monthly patching as part of the Operations & Maintenance (O&M) team


• Mentor mid-level and junior system administrators, providing guidance and support while effectively managing RHEL-related tasks with minimal supervision


• Maintain a weekly schedule within core business hours (9:00 AM - 2:00 PM, Monday through Friday) while ensuring RHEL workload completion beyond this timeframe


• Manage Red Hat Enterprise Linux (RHEL) operating systems, including configuration management, performance tuning, software installations, system hardening, security compliance, and storage allocation

Qualifications

Required Qualifications:

• This position requires the candidate to possess a minimum of Top-Secret clearance with the ability to obtain TS/SCI. The candidate must maintain the clearance.


• Associates degree and 10+ years of experience in a related field; or bachelor’s degree and 8+ years of experience in a related field; or a master’s degree and 6+ years of experience in a related field. Four (4) years of relevant experience will be considered in lieu of a bachelor’s degree


• Meet DoD 8140 foundational requirements for a System Administrator at an intermediate proficiency level or above


• Expertise in RHEL 8.X and later versions, including system administration, performance tuning, and troubleshooting


• Proficiency with RHEL Satellite Server and Ansible, leveraging these tools for configuration management, automation, and system orchestration


• Advanced technical knowledge to collaborate with support and engineering teams in managing Linux-based cloud, on-premises, and lab environments, ensuring optimal system performance and reliability, particularly within RHEL-based infrastructures


• Experience validating health, status, operations, and maintenance of Red Hat Enterprise Linux (RHEL) systems within an enterprise environment, ensuring system stability, security, and performance


• Extensive experience in secure system sustainment, monitoring, backup, recovery, and testing updates for Red Hat Enterprise Linux (RHEL) systems in an enterprise environment, ensuring system integrity and availability


• Extensive technical expertise in Linux/RHEL configurations, Git, OS upgrades, and implementation of application updates/upgrades


• Strong, firsthand technical expertise in various Linux and RHEL configurations, deployment, and continuous integration technologies, with a proven ability to design and implement robust solutions that evolve alongside new development and meet the needs of end users.


• Knowledge of Red Hat Identity Management, or other equivalent identify management applications


• Demonstrated experience mentoring junior - mid-level Systems Administrators

Desired Qualifications:

• Experience with Atlassian Data Center products (I.e. Jira Service Management, Jira Software, and Confluence)


• Experience or knowledge of Sentris, or other similar attribute-based security classification services, deployments in an enterprise environment.


• Knowledge of deploying host instances in Red Hat OpenStack Platform, or equivalent cloud-based application

Benefits:

Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participatein an attractive bonus plan

#Metroplex

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

$135,000 - $216,000. 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.