Red Hat Linux Systems Administrator

Red Hat Linux Systems Administrator
Washington DC (Onsite)
Summary
We are seeking an experienced Red Hat Linux Systems Administrator to support a mission-critical federal environment for the United States Secret Service (USSS). This position will provide hands-on Linux systems administration, automation, patching, configuration management, and DevOps support across on-premises and cloud-based environments.
The successful candidate will have strong experience with Red Hat Enterprise Linux (RHEL), Red Hat Satellite, Ansible, scripting, system patching, and Infrastructure as Code (IaC). The role will also support automation initiatives, security configuration and STIG implementation, identity and access management, and integration between infrastructure management and customer support systems.
This position requires strong technical troubleshooting and communication skills and the ability to translate operational requirements into documented technical solutions and automated processes.
Work Location: 100% onsite in Washington, DC.
Duties and Responsibilities

• Assist with specific projects, supplementing capabilities, and performing system planning, analysis, and management as needed on the installed operational platforms managed by ESS.
• Provision IP addresses and configure DNS host files.
• Provide expertise in network design and planning.
• Actively engage in United States Secret Service (USSS) status meetings to provide updates and gather requirements.
• Register for and allocate subscriptions from Red Hat Satellite services.
• Maintain Red Hat Satellite at current vendor-supported release levels.
• Ensure Red Hat Enterprise Linux servers are updated to current vendor-supported release levels.
• Support the patching of Linux systems through scripting (Ansible) or manual execution (yum).
• Perform OS installation and configure environmental variables for Linux systems.
• Convert pseudo-code specifications into tested and functioning Ansible Playbooks to automate various DEVOPS processes.
• Develop, debug, and deploy automated implementations of STIG settings using Ansible Playbooks.
• Set and distribute authentication and authorization rights within Identity Manager for targeted hosts, groups, and users.
• Work with automated and semi-automated software distribution, OS maintenance, and Infrastructure as Code (IaC) on hosted servers and containers, both on-premises and in the cloud, using Red Hat Satellite, Capsule, and Microsoft Azure products.
• Patch Linux systems using yum CLI, scripting, Ansible Playbooks (YAML), and Satellite toolsets.
• Connect key information from customer trouble ticketing tools with environment management tools such as Ansible AAP, PostgreSQL database, or Red Hat Satellite.
• Capture key features and deliverables from verbal instructions to develop written specifications.
• Convert specifications into pseudo code, which is then translated into programming languages such as Ansible Playbooks and Python, as well as toolset instructions (e.g., SQL).
• Utilize version control tools such as Git and GitHub from USSS-approved sources.
• Other duties as assigned.

Minimum Qualifications
(To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.)

• 4+ years of Red Hat Linux System administration experience.
• Current certification as a Red Hat Certified Systems Administrator (RHCSA).

Knowledge, Skills and Abilities

• Excellent oral and written communication skills.

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Marathon TS is committed to the development of a creative, diverse and inclusive work environment. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Marathon TS will be based on merit, qualifications, and abilities. Marathon TS does not discriminate against any person because of race, color, creed, religion, sex, national origin, disability, age or any other characteristic protected by law (referred to as "protected status").