Linux Systems Administrator; RHEL

Position: Linux Systems Administrator (RHEL)
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  to learn how we’re keeping people around the world safe and secure.

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…