Linux Systems Administrator, Senior

Booz Allen Hamilton•Tampa, FL

2d•$61,900 - $141,000

About The Position

Booz Allen is seeking a senior Linux systems administrator to operate and maintain clients’ Linux-based systems supporting the DoW. The role performs enterprise operations and maintenance across multi-enclave environments, including lifecycle sustainment of RHEL systems and operational support for Ubuntu and emerging containerized platforms. The administrator resolves incidents and Tier 2 support tickets, validates newly provisioned systems, manages host compliance and vulnerability remediation, and helps maintain operational readiness across enclaves. The position also includes account and identity-service administration, routine system hygiene, patching windows, and participation in audit activities.

Requirements

12 or more years of experience in a professional work environment.
Experience administering enterprise RHEL and Ubuntu systems.
Experience supporting multi-enclave or multi-tenant environments.
Knowledge of vulnerability remediation frameworks, errata processes, and patch orchestration.
Ability to troubleshoot complex issues across operating system, network, storage, and platform layers.
TS/SCI clearance.
High school diploma or GED.
DoD 8570 IAT Level II Certification.
DoW 8140 Work Role Code 451 Intermediate Certification.

Nice To Haves

Red Hat Certified System Administrator (RHCSA) Certification.
LPIC-2 Certification.

Responsibilities

Perform enterprise fleet operations and maintenance across multi-enclave environments, including lifecycle sustainment for RHEL systems.
Troubleshoot and resolve operating system, configuration, service, and platform-level incidents.
Conduct post-provisioning validation and onboard newly deployed systems.
Manage host compliance through errata application, STIG and CIS alignment practices, and quarterly patch cycles.
Perform vulnerability patching, remediation, and compliance verification across RHEL and Ubuntu systems.
Validate directory integration and ensure Linux hosts are correctly bound to identity services.
Manage user and service accounts, including onboarding, permissions, and lifecycle controls.
Support onboarding of Ubuntu and emerging containerized platforms.
Provide operational support for Ubuntu and RHEL systems, including patching, troubleshooting, and lifecycle sustainment.
Perform routine hygiene tasks, including log retention management, host health checks, and backup or restore verification.
Maintain routine service and patching support across enclaves to ensure consistent operational readiness.
Resolve Tier 2 support tickets related to Linux platforms.
Participate in Linux patching windows and audit activities related to enclave synchronization.