Senior Linux Systems Administrator

Leidos•Dayton, OH

6d•Onsite

About The Position

The Senior Linux Systems Administrator provides Linux systems administration expertise for a customer operating the DoW’s largest supercomputing centers. The role supports reliable access to critical computing resources used by DoW scientists and directly supports the warfighter. Work is performed at the customer’s site on Wright-Patterson Air Force Base in Dayton, Ohio, and an active Top Secret clearance or interim Top Secret eligibility is required before starting. The position serves as Deputy Team Lead for the local System Administration Functional team and supports a multi-platform UNIX environment. Duties include Red Hat Linux administration, performance tuning, client security administration, systems software support, technology assessments, system enhancements and maintenance, software installation and upgrades, acceptance testing, and monitoring mission-critical systems. The administrator also helps ensure compliance with established standards, policies, configuration guidelines, and service-level agreements.

Requirements

Hold an active, in-scope Top Secret clearance or be able to obtain Interim Top Secret eligibility before starting; U.S. citizenship is required.
Hold a bachelor’s degree and have at least 8 years of equivalent experience, or hold a master’s degree and have 6 years of experience.
Hold a current DoD 8570 IAT II certification before starting: Linux+, CCNA-Security, CND, CySA+, GICSP, GSEC, Security+ CE, or SSCP.
Communicate effectively orally and in writing with users and office staff.
Demonstrate Linux expertise managing bare-metal and virtualized systems.
Have hands-on experience patching, managing, and responding to DoW STIGs, including POA&M remediations.
Have experience supporting and working with ISSOs and ISSMs.
Be proficient in Ansible or have equivalent configuration-management experience.

Nice To Haves

Proficiency in Linux storage subsystems.
Experience managing Red Hat Satellite systems.
Experience managing containerized services within Kubernetes.
Ability to write, diagnose, and optimize scripts in Bash, Python, or Perl.
Familiarity managing virtual systems within VMware.
Windows Server and workstation experience.

Responsibilities

Serve as Deputy Team Lead over the local System Administration Functional team.
Provide Red Hat Linux systems administration, performance tuning, client security administration, systems software support, and technology assessments in a multi-platform UNIX environment.
Perform system enhancements, configuration, maintenance, installation, interface work, and coordination.
Install and upgrade UNIX operating systems and layered software packages.
Monitor and tune systems to achieve optimum performance in accordance with established policies, procedures, and service-level agreements.
Perform acceptance testing of modules, subsystems, and complete systems.
Install and configure software.
Monitor log files, performance issues, and production environments for mission-critical systems.
Set priorities and organize work to meet deadlines.
Ensure compliance with established standards, policies, and configuration guidelines.