Linux System Administrator IntermediateLevel

Job Description

Link Solutions is seeking an Intermediate Linux System Administrator (Intermediate-Level) to join our team at Clarksburg, WV.

• U.S. Citizen with an active DoW Secret Clearance
• IAT Level II Certification equivalent or higher per DoD 8570/8140
• Non-remote (relocation incentive available)

The Linux System Administrator will provide essential IT support services at the Clarksburg Local Network Enterprise Center (LNEC) in support of the Biometric Operations Department (BOD). This role is responsible for operating, maintaining, troubleshooting, and securing Linux-based systems and infrastructure in accordance with established Service Level Agreements (SLAs), ensuring reliable support for Army Information Technology Portfolio (AITP) systems and mission-critical operations.

This is an excellent opportunity for an IT professional to support enterprise-class Linux environments within a secure Department of Defense setting. Working alongside experienced engineers, system administrators, and cybersecurity professionals, the Linux System Administrator will help maintain system availability, resolve technical issues, implement security requirements, and support infrastructure modernization initiatives. This dynamic role is ideal for a self-starter who is comfortable working in a fast-paced environment, adapting to evolving mission requirements, and independently driving tasks to completion while supporting critical operational needs.

• Monitor system performance, availability, and security, proactively identifying and resolving issues to maintain operational readiness.
• Install, configure, patch, and upgrade Linux operating systems, applications, and supporting services in accordance with security and compliance requirements.
• Perform system hardening in accordance with DoD Security Technical Implementation Guides (STIGs) and other cybersecurity mandates.
• Manage user accounts, permissions, authentication services, and access controls across enterprise Linux environments.
• Configure and maintain enterprise services such as DNS, DHCP, NTP, LDAP, SSH, web services, and file-sharing solutions.
• Troubleshoot and resolve complex system, application, network, and performance-related issues across multiple environments.
• Support vulnerability remediation efforts by analyzing security scan results and implementing corrective actions.
• Develop and maintain automation solutions using Bash, Ansible, or other scripting and configuration management tools.
• Perform system backups, disaster recovery activities, and continuity-of-operations support to ensure mission resilience.
• Support virtualization and cloud-based infrastructure technologies, including VMware, Red Hat Virtualization, or similar platforms.
• Collaborate with cybersecurity, networking, and engineering teams to implement system enhancements and resolve operational issues.
• Maintain compliance with DoD, Army, and organizational policies, procedures, and security requirements.
• Support infrastructure modernization initiatives by evaluating, testing, and implementing new technologies and system improvements.
• Participate in incident response, root-cause analysis, and after-action reporting for system disruptions and security events.
• Provide technical guidance and mentorship to junior administrators and support personnel when needed.

Please note that this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities required of the employee.

Qualifications

• U.S. Citizen with an active DoW Secret Clearance.
• DoD 8570/8140 IAT Level II certification (Security+ CE, SSCP, GSEC, or equivalent).
• Minimum of three (3) years of relevant IT experience with direct hands-on administration of Red Hat Enterprise Linux (RHEL) and/or derivative distributions (Rocky Linux, Alma Linux, CentOS).
• Demonstrated experience writing, maintaining, and troubleshooting Bash scripts for systems administration and automation.
• Experience installing, configuring, patching, and maintaining Linux operating systems and enterprise services.
• Experience troubleshooting Linux operating systems, applications, and system performance…