Linux Systems Administrator (RHEL)

Posted One Month Ago
Be an Early Applicant
Chantilly, VA, USA
In-Office
135K-216K Annually
Senior level
Aerospace • Information Technology • Security • Cybersecurity • Defense
Do the can't be done.
The Role
Manage and administer RHEL production systems in a classified operational support network. Responsibilities include system maintenance, monitoring, patching, hardening, performance tuning, storage allocation, security compliance, automation with Ansible, and patch management through Red Hat Satellite. The role supports high availability and scalability across cloud, on-premises, and lab environments, collaborates with engineering teams, and mentors junior and mid-level administrators.
Summary Generated by Built In
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 participate in 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. EEOEEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.

Skills Required

  • Minimum Top Secret security clearance with ability to obtain TS/SCI and maintain the clearance
  • Associate degree and 10+ years of related experience, bachelor’s degree and 8+ years, or master’s degree and 6+ years; four years of relevant experience may substitute for a bachelor’s degree
  • Meet DoD 8140 foundational requirements for a System Administrator at intermediate proficiency or above
  • Expertise administering, tuning, and troubleshooting RHEL 8.x and later
  • Proficiency with Red Hat Satellite Server and Ansible for configuration management, automation, and orchestration
  • Experience managing Linux-based cloud, on-premises, and lab environments
  • Experience validating RHEL system health, status, operations, and maintenance in an enterprise environment
  • Experience with secure system sustainment, monitoring, backup, recovery, and update testing for RHEL systems
  • Technical expertise with Linux/RHEL configurations, Git, operating system upgrades, and application updates
  • Experience designing and implementing Linux/RHEL deployment and continuous integration solutions
  • Knowledge of Red Hat Identity Management or equivalent identity management applications
  • Demonstrated experience mentoring junior- to mid-level Systems Administrators
  • Experience with Atlassian Data Center products, including Jira Service Management, Jira Software, and Confluence
  • Experience or knowledge of Sentris or similar attribute-based security classification services
  • Knowledge of deploying host instances in Red Hat OpenStack Platform or equivalent cloud-based applications

Peraton Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Peraton and has not been reviewed or approved by Peraton.

  • Healthcare Strength — Healthcare offerings are described as broad, including medical, dental, vision, mental health support, and specialty programs like virtual physical therapy and surgical/cancer care navigation. Medical coverage is also characterized as a standout part of the overall package in terms of perceived quality.
  • Retirement Support — Retirement support includes a 401(k) with employer matching and is repeatedly positioned as a strong component of total rewards. The 401(k) benefit is frequently singled out as one of the most valued parts of the package.
  • Leave & Time Off Breadth — Time-off benefits are positioned as robust, including PTO, holidays, paid sick days, and floating holidays, with some roles offering notably generous accrual. Leave breadth is reinforced by related programs such as short/long-term disability and bereavement leave.

Peraton Insights

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The Company
HQ: Reston, VA
18,000 Employees
Year Founded: 2017

What We Do

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.

Why Work With Us

We are fearlessly solving the world’s most complex challenges to keep people safe and secure. You can be a part of protecting and promoting that freedom around the world.

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