Systems Administrator (RHEL)

Key Responsibilities

• Administer, support, and optimize RHEL-based server infrastructure, including RHEL 7.x, 8.x, and 9.x.
• Perform installation, configuration, upgrades, and patch management.
• Provide technical guidance and support for system integration, migrations, and upgrades.
• Monitor, analyze, and tune system performance.
• Identify and resolve bottlenecks to ensure reliability and efficiency.
• Execute backup, restore, and disaster recovery operations to safeguard data and maintain high availability.
• Assess, recommend, and implement hardware and software solutions to meet evolving business and technical requirements.
• Conduct vulnerability assessments and remediation using tools such as Tenable, HP WebInspect, and other industry-standard platforms.
• Investigate security incidents, assess risks, and design mitigation strategies.
• Implement proactive and reactive security measures.
• Manage and apply DISA STIGs and mitigate Known Exploitable Vulnerabilities to ensure compliance and security.
• Automate routine tasks and system management using Ansible Automation Platform, scripting languages such as Bash and Python, and other tools to improve operational efficiency.
• Develop, maintain, and update documentation for system configurations, processes, and troubleshooting procedures.
• Collaborate with cross-functional teams, including network, storage, application, and security teams, to support integrated solutions and resolve complex issues.

Qualifications

• 7+ years of experience working as a system administrator on Linux or Red Hat systems is required.
• Active DoD Secret clearance is required.
• Must be able to report onsite to Annapolis Junction, Maryland.
• U.S. Citizenship is required due to contract requirements.
• Candidates with dual citizenship cannot be considered.
• This contract supports systems that require 24x7x365 uptime.
• Candidates must be willing and able to meet recall requirements, including participation in a rotational on-call schedule.