RHEL Administrator III

Patriot, LLC is seeking an accomplished Red Hat Enterprise Linux Administrator to provide expertise in managing and optimizing assets for our federal client's critical operations. As a Red Hat Enterprise Linux Admin, you will be responsible for managing and maintaining the RHEL infrastructure. Your role will involve overseeing system administration, configuration, troubleshooting, and ensuring the stability, security, and performance of the RHEL environment.

• 7+ years of experience working as a system admin on Linux or Red Hat systems is required; related experience is acceptable.
• Candidates must reside within a commutable distance for daily onsite work and on-call requirements.
• 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.

• Administer, support, and optimize RHEL-based server infrastructure (RHEL 7.x/8.x/9.x), including installation, configuration, upgrades, and patch management.
• Perform daily system administration tasks such as user management, permissions, file systems, and network configuration.
• 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.
• Develop, maintain, and update documentation for system configurations, processes, and troubleshooting procedures.
• Conduct vulnerability assessments and remediation using tools such as Tenable, HP Web Inspect, 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 KEVs (Known Exploitable Vulnerabilities) to ensure compliance and security.
• Automate routine tasks and system management using Ansible Automation Platform (AAP), scripting languages (Bash, Python, etc.), and other tools to improve operational efficiency.
• Collaborate with cross-functional teams (network, storage, application, and security) to support integrated solutions and resolve complex issues.
• Provide technical guidance and support for system integration, migrations, and upgrades.

Patriot, LLC is committed to a drug‑free workplace. As such, the Company conducts pre‑employment, reasonable cause, random and contract‑mandated testing in accordance with federal and state law.

Patriot, LLC is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.

Patriot LLC (Patriot), located in Columbia, Maryland is an established, privately held government and commercial services Contractor with dedicated employees who bring relevant, responsive and adaptive solutions to our customers.

In 2014, Patriot’s CEO Anthony Russo was recognized as a Circle of Excellence Smart CEO Finalist and was profiled in the November/December issue of SmartCEO magazine. The Circle of Excellence Awards program recognizes CEOs who have succeeded in taking an aspect of their businesses to a level most companies rarely achieve.

In 2013, we received the Baltimore Business Journal’s award for being the largest veteran owned business based in the Baltimore area. In 2012, we received the 2012 Best in Columbia for our work in the areas of Computer Integrated Systems Design.

In 2011, we received the Best…