DenverRecruiter Since 2001
the smart solution for Denver jobs

Senior Linux Systems Administrator

Company: RTL Networks, Inc.
Location: Denver
Posted on: September 18, 2023

Job Description:

Job title: Senior Linux Systems Administrator

Location: Dahlgren, VA

Status: Full-time / On-site

About Us: RTL Networks, Inc. is a rapidly growing company primarily focused on providing information technology (IT) support services and personnel to various commercial and government customers for extended-term contracts. By providing a wide array of professional services and products, we help our customers leverage technology and operate confidently in their technology environments to ensure resource predictability, security, and reliability to meet business objectives.

Job Purpose or Summary:

RTL Networks has an exciting opportunity for a Senior Linux Systems Administrator. We seek qualified professionals to support our team's Research, Development, Test, and Evaluation Program at the Naval Surface Warfare Center, Dahlgren Division (NSWCDD), in Dahlgren, VA. The Senior Linux Administrator is responsible for system administration and customer support of servers and workstations in a Research, Development, and Testing and Evaluation (RDT&E) environment.


Essential responsibilities of the Senior Linux Administrator include, but are not limited to:

  • Utilize Red Hat Enterprise Linux system administration experience to provide technical problem solving and in-depth consulting relative to system operations
  • Provide expertise and support for data gathering, analysis, and reporting for the Cybersecurity Compliance Assessment (CSCA) Tool monthly
  • Provide support Dahlgren Information Repository for CyberSecurity (DIRCS) development and other automation/data consolidation to provide value added cyber compliance reporting from existing toolset in use and display those on a per asset/package/department basis and would be capable of providing views useful to both management and more detailed reporting for technical POCs.
  • Automate installation methods and system imaging (e.g. Kickstart/Ansible)
  • Use cryptographic experience to set up public key infrastructure (PKI) to create, manage, distribute, use, store, and revoke digital certificates and manage public-key encryption
  • DISA STIG implementation and work within Configuration-Managed Environments
  • Analyze, design, and implement modifications to system software to improve and enhance system performance by correcting errors
  • Plan new hardware acquisitions, interact with vendors, educate customers, and collaborate with other projects within the organization
  • Work closely with engineers to help them use workstations and servers to solve their computationally intensive problems
  • Support application installation, license management, software tracking / distribution and backup/recovery of system configurations and user data files
  • Understand and use essential tools for handling files, directories, command-line environments, and documentation
  • Operate running systems, including booting into different run levels, identifying processes, starting and stopping virtual machines, and controlling services
  • Configure local storage using partitions and logical volumes
  • Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems
  • Deploy, configure, and maintain systems, including software installation, update, and core services
  • Manage users and groups, including use of a centralized directory for authentication
  • Produce and deliver reports on system utilization
  • Use shell scripting to automate system maintenance tasks
  • Configuring system logging, including remote logging
  • Configure a system to provide networking services, including HTTP/HTTPS, DNS, SMTP, SSH and NTP


    • Minimum three - six years' experience in system administration of Linux-based servers and Linux-based workstations
    • Ideal Linux Admin will have Department of Defense experience with security guidelines and policies. (DISA STIGS) is a plus
    • Seeking specific experience with the following operating systems and services is required: Red Hat Enterprise Linux (RHEL 7.x)
    • Must meet DoD 8570 Information Assurance Workforce (IAWF) criteria or Information Assurance Technical (IAT) Level II certification at time of hire (i.e., Security+).

      Desired Skills:

      • Have knowledge of corporate services including: DNS, SMTP, RHEV, Splunk, Apache
      • Demonstrated experience managing the installation and maintenance of IT infrastructure
      • Hardware experience with Dell systems is a plus
      • Experience working in an environment with rapidly changing job priorities
      • Remedy ITSM Ticket Management experience
      • Linux+ or Red Hat Certification preferred

        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 Secret level. US Citizenship is a requirement for Secret clearance at this location.


          • Applicant selected for this position must have and be able to maintain an Active Security Clearance.
          • U.S. Citizenship required.
          • Applicants must have a valid driver's license for this position and will be subject to verification
          • Chosen applicants must pass pre-employment drug screening, credit review, and a criminal background check.

            We are an Equal Opportunity Employer, Females/Minority/Veterans/Disabled/Sexual Orientation/Gender Identity/Religion/National Origin



Keywords: RTL Networks, Inc., Denver , Senior Linux Systems Administrator, IT / Software / Systems , Denver, Colorado

Click here to apply!

Didn't find what you're looking for? Search again!

I'm looking for
in category

Log In or Create An Account

Get the latest Colorado jobs by following @recnetCO on Twitter!

Denver RSS job feeds