63 linux system administrator jobs at 31 companies in Johnstown, CO
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Principal Linux System Administrator
Aurora, Colorado, United States
$149k-$184k/yr OnsiteFull Time
8+ YOE8+ years administering Linux (RHEL) with Top Secret clearance, experience in system hardening (STIG/SCAP), virtualization, patch management, networking, troubleshooting, and automation/scripting.
Red Hat Enterprise Linux (RHEL), RHEL 8, RHEL 9, RHEL 10, VMware, VMware vSphere, Podman, Docker, Red Hat OpenShift, Kubernetes, minikube, Image registries, PyPI, Ansible, Bash, Python, Git, GitLab, CI/CD, DISA SCAP Compliance Checker, DISA STIG, Dell servers, SAN
2d
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System Administrator for Linux
Aurora, Colorado, United States
$125k-$140k/yr OnsiteFull Time
3+ YOEBachelor's degree in computer science or related field, or 10 years equivalent experience; 5 years as an OS administrator, including 3 years in Linux and operations support. US citizenship, clearance eligibility, and Security+ within 6 months required.
Linux, Windows, AWS, Bash, Perl, Python, Ansible, Puppet, SELinux, EC2
1mo
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Linux Administrator II
Westminster, Colorado, United States
$33-$39/hr OnsiteFull Time
2+ YOEBachelor's degree in a technical discipline with 2+ years Linux systems administration; networking fundamentals (TCP/IP, DNS, DHCP, VLANs), cybersecurity best practices, troubleshooting, operational readiness, and strong cross-team communication.
Linux, TCP/IP, DNS, DHCP, VLANs, firewalls
2w
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Sr Linux Administrator
Centennial or Louisville
$136k-$187k/yr OnsiteFull Time
8+ YOEBachelor's or equivalent, typically 8+ years related experience, 3+ years cloud experience (AWS/Azure), advanced systems administration, security, scripting/automation, and leadership/mentoring skills.
AWS, Azure, Docker, Kubernetes, Jenkins, Ansible, Puppet, Chef
6d
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System Administrator
Aurora or Texas
$130k-$165k/yr OnsiteFull Time
Active TS/SCI clearance with CI polygraph, hands-on Windows and Linux administration, infrastructure troubleshooting, networking, virtualization, automation, security, and onsite Colorado work.
Windows, Linux, Windows 11, Windows Server 2022, Red Hat Enterprise Linux 8/9, Microsoft 365, Active Directory, Group Policy, DNS, DHCP, Exchange, WSUS, Kickstart, Bash, PowerShell, Git, Ansible, Terraform, Packer, GitLab, CI/CD, Nexus, Podman, Kubernetes, RKE2, K3s, Trident, Cisco Catalyst, Cisco Nexus, Palo Alto, Cisco VoIP, NetApp, Synology, Pure Storage, Veeam, Grafana, Prometheus, SolarWinds, Elastic Stack, Splunk, Nessus, Trellix, SCAP, CMMC
1mo
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Sr Principal Linux Systems Administrator - Secret
Boulder, Colorado, United States
$129k-$194k/yr OnsiteFull Time
6+ YOEMust hold U.S. Secret clearance, meet 8140 IAT Level II (e.g., Security+) requirements, have extensive Linux server administration in a classified environment, cross-platform OS awareness, and meet degree/experience combination listed.
Red Hat Satellite, Ansible, HBSS, PRTG, Splunk, PowerShell, VMware, NFS, Microsoft Windows, Microsoft Active Directory, Cisco, Windows, Solaris, OSX, UNIX
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Sr Principal Linux Systems Administrator - Secret
Boulder, Colorado, United States
$129k-$194k/yr OnsiteFull Time
6+ YOESecret clearance required; IAT Level II (8140) certification (e.g., Security+) required; 6+ years IT experience (Masters) or equivalent; Linux server administration in classified environments; cross-platform OS awareness; Red Hat Satellite and Ansible experience preferred.
Linux, Red Hat Satellite, Ansible, HBSS, PRTG, Splunk, PowerShell, VMware, NFS, Microsoft Active Directory, Windows, Solaris, OSX, UNIX, Cisco
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Slingshot Hardware System Administrator
Chippewa Falls or Fort Collins or Spring or Bloomington
$106k-$243k/yr HybridFull Time
4+ YOEBachelor's or master's degree in Computer Science, Information Systems, or equivalent; 4–6 years as a system or network administrator and lab technician; Linux, networking, scripting, and hardware lab experience.
Linux, LSF, Slurm, Shell, Bash, Python
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Slingshot Hardware System Administrator
Chippewa Falls or Fort Collins or Spring or Bloomington
$106k-$243k/yr HybridFull Time
4+ YOEBachelor's or Master's degree in Computer Science, Information Systems, or equivalent; 4–6 years as a system or network administrator and lab technician; Linux, networking, scripting, and hardware lab experience.
Linux, LSF, Slurm, Shell, Bash, Python
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Slingshot Hardware System Administrator
Chippewa Falls or Fort Collins or Spring or Bloomington
$106k-$243k/yr HybridFull Time
4+ YOEBachelor’s or master’s degree in computer science, information systems, or equivalent; 4–6 years as a systems or network administrator or lab technician; Linux, networking, filesystems, scripting, and hardware lab experience.
Linux, LSF, Slurm, Shell, Bash, Python
2mo
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Cloud and Infrastructure Systems Administrator - Linux admin
Denver, Colorado, United States
$83k-$174k/yr OnsiteFull Time
7+ YOETS/SCI with Polygraph required; DoD 8570 IAT Level II (Security+ or CISSP) required or must obtain; Bachelor’s degree in CS/IT; ~7 years Linux system administration and network troubleshooting; cloud (AWS), DevOps, Puppet/IPA/Kubernetes/Ansible experience preferred.
Linux, Nutanix, AWS, IPA, Puppet, Kubernetes, Ansible
2w
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System Administrator- Must have TS/SCI Poly clearance
Aurora, Colorado, United States
$69k-$131k/yr OnsiteFull Time
2+ YOEActive transferable TS/SCI with CI poly, DoD 8570 IAT Level 2 cert, bachelor\u0002s and ~2 years experience, Linux RedHat and Microsoft Windows experience, virtualization/cloud (Citrix, VMware, AWS), 24x7 operations support.
Linux RedHat, Microsoft Windows, Citrix, VMware, Amazon Web Services (AWS), Cloudera, Oracle, Dell/EMC, Isilon/PowerScale, NetApp
2mo
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System Administrator/Cloud Engineer - Aurora, CO or Meridian, CO
Aurora or Meridian
$90k-$237k/yr OnsiteFull Time
3+ YOETop Secret/SCI eligibility required; Kubernetes (K3s) experience; Linux admin; AWS Snowball Edge/Outpost; 3+ years system admin; DevSecOps pipelines; network protocols.
Kubernetes, AWS Snowball Edge, AWS Outpost, Linux, Bash, Python, Git, Ansible, Ingress controllers, Proxy server administration, NPE Certificate Management
2mo
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Cloud and Infrastructure Systems Administrator - Linux admin
Denver, Colorado, United States
$83k-$174k/yr OnsiteFull Time
7+ YOEDoD 8570 IAT Level II (Security+ or CISSP) or willingness to obtain; BS in CS/IT; 7+ years Linux server/desktop administration and network troubleshooting; DevOps knowledge; willingness to learn.
Linux, AWS, Puppet, IPA, Kubernetes, Ansible, Scripting
2mo
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Systems Sr Administrator (IT)
Denver, Colorado, United States
$78k-$119k/yr OnsiteFull Time
Senior UNIX/Linux systems administration in multi-location environments; production support; automation and open source tooling; strong ITIL practices.
Linux, OpenShift, Oracle, DB2, Puppet Enterprise, Confluence
1mo
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Systems Administrator-Cleared
Denver or Folsom
$120k-$165k/yr OnsiteFull Time
3+ YOEActive TS/SCI required, 3+ years systems administration experience; manage Microsoft 365/Azure, Intune, Okta, AD, Windows/Linux servers, virtualization, Fortinet networking, and scripting (PowerShell/Bash/Python).
Microsoft 365, Microsoft Azure, Microsoft Intune, Okta, Microsoft Entra ID, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint, Microsoft Defender, Windows Server, Linux, Ubuntu, RHEL, CentOS, VMware vSphere, Hyper-V, Fortinet, FortiGate, FortiSwitch, FortiClient, Active Directory, PowerShell, Bash, Python, ServiceNow, Jira Service Management
5d
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Sr. Systems Administrator
Denver, Colorado, United States
$136k-$166k/yr OnsiteFull Time
10+ YOERequires 10 years of systems administration experience or equivalent education, TS/SCI with active CI polygraph, systems and network expertise, operating systems knowledge, ITSM experience, and leadership abilities.
Windows, macOS, Linux, ITSM, Active Directory, ServiceNow, Remedy, Jira Service Management, CompTIA Server+, Microsoft Certified Systems Administrator, Red Hat Certified System Administrator
2w
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Unix Administrator
Denver, Colorado, United States
OnsiteFull Time
Manage, configure, tune, and secure large-scale Redhat/Oracle Linux systems; perform installations, patching, disaster recovery, and collaborate with security teams.
Redhat, Oracle Linux, RHEL, VMware, KVM, Microsoft Azure, Redhat Satellite, Shell
16h
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Systems Administrator I
Boulder, Colorado, United States
$75k/yr HybridFull Time
Requires a bachelor's degree or equivalent experience, Windows systems knowledge, networking fundamentals, ticketing-system experience, communication skills, U.S. work authorization, and ability to obtain Public Trust clearance.
Windows, Sunflower, Service Desk Plus, LAN, WLAN, TCP/IP, DNS, DHCP, Microsoft Office, UNIX, Linux, macOS, Druva, BigFix, TeamViewer, Jamf Pro, Apple Business Manager, FISMA, NIST 800-53, Risk Management Framework (RMF)
1d
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Research Computing Storage Administrator
Boulder, Colorado, United States
$71k-$78k/yr HybridFull Time
2+ YOEBachelor's degree in science, engineering, or related field, or equivalent experience, plus 2 years administering storage systems in Linux or Unix environments and experience with ZFS or parallel file systems.
Linux, Unix, NFS, SMB, Red Hat Enterprise Linux, ZFS, GPFS, Lustre, BeeGFS, Globus, GridFTP, TCP/IP, InfiniBand, Puppet, Ansible, git, AWS, Azure, GCP, iRODS, corosync, pacemaker
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