Linux Systems Administrator

4 days ago


Dahlgren, Virginia, United States RTL Networks Full time
Job Title: Linux (Red Hat) Systems Administrator

At RTL Networks, we are seeking a highly skilled Linux Systems Administrator to join our team. As a key member of our IT department, you will be responsible for the administration and maintenance of our Linux-based systems, ensuring they are running smoothly and efficiently.

Key Responsibilities:
  • Administer and maintain Red Hat Enterprise Linux systems, including installation, configuration, and troubleshooting.
  • Provide technical support for data gathering, analysis, and reporting for the Cybersecurity Compliance Assessment (CSCA) Tool.
  • Support the development and implementation of automation and data consolidation tools, such as Dahlgren Information Repository for Cybersecurity (DIRCS).
  • Automate installation methods and system imaging using tools like Kickstart and Ansible.
  • Implement and manage public key infrastructure (PKI) and digital certificates.
  • Ensure compliance with DISA STIGs and work within Configuration-Managed Environments.
  • Analyze, design, and implement modifications to system software to improve performance.
  • Plan and implement new hardware acquisitions and collaborate with vendors.
  • Support application installation, license management, and backup/recovery of system configurations and user data files.
  • Manage users and groups, including use of a centralized directory for authentication.
  • Produce and deliver reports on system utilization.
Requirements:
  • Minimum three to six years of experience in system administration of Linux-based servers and workstations.
  • Red Hat Enterprise Linux system administration experience, including RHEL 7/8/9.
  • Knowledge of security guidelines and policies (DISA STIGs) and tools (Evaluate-STIG, STIG-Manager).
  • Experience with Tenable suite of products (Security Center, Nessus Scanner, Nessus Agent) is a plus.
  • Must meet DoD 8570 Information Assurance Workforce (IAWF) criteria or Information Assurance Technical (IAT) Level II certification at time of hire.
  • Knowledge of corporate services, including DNS, SMTP, Splunk, and centralized patching solutions.
Physical Demands:
  • Must be able to lift up to 15 pounds.
  • Must be able to stand and walk for prolonged amounts of time.
  • Must be able to twist, bend, and squat periodically.
Security Clearance Requirements:
  • Must currently hold a security clearance at the Top-Secret level.
  • US Citizenship is a requirement for clearance at this location.


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