[Hiring] Linux Systems Administrator @Peraton

Role Description

The Linux Systems Administrator maintains smooth operation of multi-user computer systems, including coordination with network engineers. Responsibilities include:

• Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency.
• Performs systems security administration functions, including creating user profiles and accounts.
• Sets up administrator accounts, maintains system documentation, tunes system performance, installs system-wide software, and allocates mass storage space.
• Interacts with users and evaluates vendor products, making recommendations to purchase hardware and software.
• Coordinates installation and provides backup recovery.
• Develops and monitors policies and standards for allocation related to the use of computing resources.
• Installs, configures, and maintains infrastructure components in a virtualized Linux Environment.
• Fully manages the installation, configuration, and troubleshooting of all aspects of Linux servers.
• Administers, troubleshoots, and resolves failures and critical alerts on Linux servers.
• Provides support during off hours for system maintenance and system outages.
• Utilizes Ansible, RedHat Satellite, and other Linux tools to support the environment.
• Installs third-party software.
• Demonstrates experience administering Linux systems in cloud environments, including hands-on work with Microsoft Azure and executing or supporting cloud migration projects.
• Installs, configures, and maintains DISA STIG Compliant infrastructure components in a virtualized Linux Environment.
• Implements DISA STIG configuration settings following change management best practices.
• Has Fapolicyd configuration experience.
• Maintains system files (groups, hosts, email aliases).
• Understands system access control and security aspects of critical systems.
• Demonstrates adherence to security best practices and Technology Services access control and security policies in day-to-day work.
• Monitors and coordinates with customers on monthly patching.
• Demonstrates adherence to change control precepts and practices.
• Writes technical operating system documentation.
• Ensures excellent Customer Service throughout the Enterprise Systems Operations group.
• Understands SELinux and user role mapping.
• Integrates RHEL servers to AD directly.
• Has knowledge and understanding of containers and configuration using AAP.
• Understands how BIND works and maintains it.
• Familiar with Satellite, content views, adding repos, updating manifests.
• Experienced with bash scripting / AWK / SED / YAML.
• Utilizes Splunk / Tivoli / and log files to troubleshoot problems.
• Understands and implements industry standards and best practices.
• Participates or leads small team efforts within Technology Services.
• Analyzes and translates business requirements into a solution design for new installations or upgrades to existing platforms.
• Manages and provides operational support of data availability and retention systems such as server and SAN based backups and enterprise level backup solutions.

Qualifications

• Bachelor's degree and 8 years of experience or Master's degree and 6 years of experience or PhD with 3 years of experience.
• Active CompTIA Security+ certification is required.
• Active Secret Clearance is required.
• US citizenship is required.
• Ability to understand the overall processes and procedures of the organization and make recommendations in the continual improvement of those processes and procedures.
• Knowledge and experience to write Unix scripts.
• Ability to participate in patch lifecycle.

Requirements

• A Red Hat Certified Systems Administrator (RHCSA) certification is desired.
• Microsoft Azure Fundamentals certification (AZ-900) or equivalent foundational knowledge of Azure cloud services.
• Microsoft Azure Administrator (AZ-104), Azure Solutions Architect (AZ-305), or DevOps Engineer (AZ-400) certification.

Benefits

• Salary range: $104,000 - $166,000, determined by various factors including scope and responsibilities, experience, education, knowledge, skills, competencies, geographic location, and business considerations.
• Employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.