Linux System Administrator (Senior-Level)

Link Solutions, Inc.•Adelphi, MD

14h•$64,000 - $108,000•Onsite

About The Position

Link Solutions is seeking a Senior-Level Linux System Administrator to join their team at Adelphi, MD. This role is responsible for the installation, configuration, maintenance, and security of Linux-based systems in compliance with DoD and ARL IT policies at the Army Research Laboratory. The position offers opportunities for career advancement and professional growth while supporting critical missions and operations contributing to national security.

Requirements

Must be a U.S. Citizen.
Must be able to obtain and maintain an active Secret Clearance.
BA/BS in computer sciences or information technology with five (5+) years of experience or an AA with seven (7+) years of relevant experience working in an IT or Service Desk environment.
IAT Level II Certification equivalent or higher per DoD 8570/DoD 8140 (CompTIA Security+ CE, CCNA Security, GICSP, GSEC, SSCP, etc.).
Red Hat Certified System Administrator (RHCSA) Certification.
Ability to work with customers to develop new value-added programs and data solutions with existing structures and new requirements.

Nice To Haves

Information Technology Infrastructure Library (ITIL) v4 certification
Experience with incident management within the ServiceNow Information Technology Service Management (ITSM) platform.
Proficiency with Microsoft Office products.
Experience creating and modifying documentation for technical processes and procedures.
Experience working in a Department of Defense (DoD) environment.
A problem solver and troubleshooter who thrives in resolving complex problems.
Strong self-starter requiring minimal supervision.
Excellent communication skills (written and oral) and interpersonal skills.
Excellent organizational skills, attention to detail, and ability to prioritize and manage multiple tasks.

Responsibilities

Install, configure, and manage RHEL systems and Red Hat Enterprise Virtualization environments.
Administer KVM virtualization, Puppet automation, and kernel-level tuning.
Implement system patching, STIG compliance, and release/version control.
Monitor performance, handle incident response, and ensure uptime and data integrity.
Automate tasks using shell scripting, Ansible, or equivalent configuration management tools.
Maintain backup and recovery solutions and ensure disaster recovery readiness.
Conduct system audits and enforce DoD security requirements.
Maintain accurate and comprehensive configuration documentation.