Linux System Administrator (Intermediate-Level)

Vets Hired•Clarksburg, WV

38d•Onsite

About The Position

The Linux System Administrator (Intermediate-Level) is responsible for operating, maintaining, troubleshooting, securing, and supporting enterprise Linux-based systems and infrastructure. The role focuses on system availability, performance, cybersecurity compliance, vulnerability remediation, automation, backups, disaster recovery, virtualization, and infrastructure modernization within a secure enterprise environment.

Requirements

U.S. Citizen with an active DoD Secret Clearance.
DoD 8570/8140 IAT Level II certification, such as Security+ CE, SSCP, GSEC, or equivalent.
Minimum 3 years of relevant IT experience with hands-on Red Hat Enterprise Linux (RHEL) or derivative distributions.
Experience writing, maintaining, and troubleshooting Bash scripts.
Experience installing, configuring, patching, and maintaining Linux operating systems and enterprise services.
Experience troubleshooting Linux operating systems, applications, and performance issues.
Knowledge of Linux user accounts, permissions, file systems, processes, and system logging.
Ability to work independently and adapt to changing requirements.
Strong technical writing and documentation skills.
Experience creating and maintaining technical procedures and system diagrams.
Strong analytical, problem-solving, and communication skills.

Responsibilities

Monitor system performance, availability, and security.
Identify and resolve system issues to maintain operational readiness.
Install, configure, patch, and upgrade Linux operating systems, applications, and services.
Harden Linux systems according to DoD STIGs and cybersecurity requirements.
Manage user accounts, permissions, authentication, and access controls.
Configure and maintain DNS, DHCP, NTP, LDAP, SSH, web services, and file-sharing services.
Troubleshoot complex system, application, network, and performance issues.
Analyze security scan results and perform vulnerability remediation.
Develop automation solutions using Bash, Ansible, and configuration-management tools.
Perform system backups, disaster recovery, and continuity-of-operations activities.
Support virtualization and cloud infrastructure, including VMware and Red Hat Virtualization.
Collaborate with cybersecurity, networking, and engineering teams.
Maintain compliance with DoD, Army, and organizational security requirements.
Support infrastructure modernization, technology testing, and system improvements.
Participate in incident response, root-cause analysis, and after-action reporting.
Provide technical guidance and mentorship to junior administrators and support personnel.