Colorado Technology Jobs

Colorado Jobs

Job Information

Geologics Sr RHEL Linux Systems Admin | Integration | Secret Clearance in Aurora, Colorado

Sr RHEL Linux Systems Admin | Integration | Secret Clearance






Sr RHEL Linux Systems Admin | Integration | Secret Clearance

Location: Aurora, CO 80011Duration: 1 year

To qualify for this position...

  • You must be a US Citizen

  • You must have an Active or Interim Secret Clearance

You are a Sr. Linux Administrator who is an expert with RedHat, especially RHEL 5/6/7. You also know RedHat Satellite.

You know how to install and upgrade Linux systems using rpm and yum.

You are able to configure, troubleshoot, and resolve networking issues, along with some Cisco systems experience.

You're also able to work with Active Directory using Centrify.

You are an expert with virtualization, in particular, VMWare Horizon and Sphere, Linux VDIs, and you can create and troubleshoot virtual machines.

You are security conscious, and have some experience with STIGs.

You'll do best in this position with most of the following in your background (and on your resume)...


  • Must be a US Citizen

  • Must have an Active/Current/Interim DoD Secret Clearance

  • Linux System Administration in an Enterprise and a development environment; strong background in Red Hat Enterprise Linux (RHEL 5/6/7)

  • Highly proficient with Installing, troubleshooting and upgrading Linux Server

  • Knowledge of patch management tools such as RPM and YUM package management, Red Hat Satellite

  • Deploying Linux OS using Kickstart

  • Active Directory Management:

  • Managing and troubleshooting GPO’s, DNS, and DHCP as it pertains to the Linux OS.

  • Adding machines into Active Directory using the Centrify Management tool

  • Setting up service accounts, user accounts and permission them using Centrify Groups.

  • Strong knowledge of VMware Horizon 7.x

  • Deploying Linux VDIs

  • Troubleshooting virtual machines using vCenter to include Networking, OS and host issues.

  • Extensive knowledge VMware vSphere 6.x Infrastructure

  • How to create a VM

  • How to troubleshoot virtual machines using vCenter to include Networking, OS and host issues.

  • Create, maintain and update software deployment and configuration guides, tune system performance, troubleshooting, installing system wide software and allocate mass storage space

  • Basic Network Administration knowledge utilizing CISCO

  • HP hardware: Install, troubleshoot physical hardware in support of the enterprise environment (i.e. server, workstations and thin clients)

  • Application support and troubleshooting to include COTS/GOTS/FOSS Software installations.

  • Excellent knowledge of computer security concepts to include DOD STIG deployment and troubleshooting as well as system monitoring and logging.

  • Ability to write technical documents to include Engineering documents, Installation and configuration documents as needed.

  • Experience with creating and troubleshooting scripts using various languages to include Powershell, Bash, Ruby, Python, etc.

  • Experience with Automation Tools; CHEF, Puppet

  • Willing and able to travel approximately 20% to additional local off-site locations for installations and maintenance work on short notice as needed

  • Must be able to lift up to 35 pounds in support of hardware installations.


  • Experience with the Centrify Management suite

  • Patch Management using Windows WSUS version 3 or later to include importing patches and metadata, Syncing patches to provide a consistent environment.

  • Application support and troubleshooting to include, but not limited to, Symantec End Point Protection (Anti-Virus) and database support for Microsoft SQL Database management and Microsoft Office Suite of Products

  • Experience with desktop workstation collaboration products and protocols

  • Systems integration experience

  • Understanding of Storage Area Network concepts (SAN) and Network Attached Storage (NAS).

  • Experience with IBM, Cisco UCS and HP hardware (i.e. server, workstations and thin clients)

  • SQL Server

You're the expert who can do this well!

Click "Apply" now.

Kelsey Scantland


Aurora , CO

Minimum Experience (yrs):


Required Education:

Not Specified