Red Hat Enterprise Linux Administrator

Arena Technical Resources
Annapolis Junction, MD, United States
12 days ago
Apply on www.atr.com
Prepare application

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
7 years minimum
Working hours
Shift work
Job source

Tech stack

Bash Shell Bioinformatics System Configuration Linux Python (Programming Language) Red Hat Enterprise Linux Ansible Software Systems Systems Integration HP WebInspect Scripting Sysadmin
+4 more
System Availability SC Clearance Patch Management Vulnerability Analysis

Job description

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.

Job-Specific Essential Duties and Responsibilities:

  • 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 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 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.

Job-Specific Minimum Requirements:

  • Active Secret clearance.
  • Must be able to report onsite to Annapolis Junction, MD.
  • Due to contract requirements, only US Citizens can be considered.

Requirements

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.

Apply for this position

This job is hosted externally. Click below to view the full posting and apply.

Apply on www.atr.com
Prepare application

Good distractions

Talks and stories from around this role — technically off-topic, practically not.

2:39 min

Experiencing core Linux capabilities for DevOps administration

Michael Cade · LIVE

2:29 min

Bypassing sysadmin restrictions across major cloud providers

Fabiano Amorim Fabiano Amorim · World Congress 2026 Europe

1:42 min

Automating Skupper deployments using Ansible

Alex Soto Alex Soto · World Congress 2024

52 sec

Running persistent Linux environments directly on Windows

Ben Breard Ben Breard · World Congress 2025

1:44 min

Career transition into cloud native and data management

Michael Cade · LIVE

1:05 min

Adapting workplace policies to support distributed technical teams

Tejas Chopra Tejas Chopra · LIVE

Videos

See all

Related articles

See all