69 linux systems administrator jobs at 37 companies in Bailey, CO
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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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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
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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
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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
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Infrastructure/Systems Administrator
Sterling or Austin or Denver
$105k-$231k/yr OnsiteFull Time
10+ YOEActive TS/SCI with polygraph, bachelor’s degree or equivalent, 10+ years related experience, extensive Linux experience, systems administration, patching, troubleshooting, documentation, and collaboration skills.
Linux, Puppet, Satellite, IPA, Nagios, Net App
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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
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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
4d
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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
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Systems Administrator
Greenwood Village, Colorado, United States
$80k-$95k/yr HybridFull Time
3+ YOE3+ years systems admin/support experience with server, network, and cloud operations; experience with Windows AD, GPO, PowerShell, Intune/MDM, API tooling, disaster recovery, documentation, and stakeholder communication. Relevant certifications preferred.
Windows AD, GPO, PowerShell, API, MDM, Microsoft Intune, Linux
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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
3w
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IT Systems Administrator Senior - IT
Greenwood Village, Colorado, United States
$105k-$115k/yr OnsiteFull Time
5+ YOE5+ years administering enterprise Windows and Linux server environments, virtualization (VMware vSphere/Hyper-V), Active Directory, DNS/DHCP, backups/DR, networking fundamentals, and security best practices.
VMware vSphere, Hyper-V, Windows Server, Linux, Active Directory, DNS, DHCP, Group Policy
1d
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Principal Systems Administrator
Westminster, Colorado, United States
$118k-$201k/yr OnsiteFull Time
6+ YOEBachelor's degree and 6 years of related experience, or high school diploma and 10 years. Requires Windows, VMware, Active Directory, DNS, DHCP, TCP/IP, PowerShell, hardware, security, and DoD 8570 expertise.
Microsoft Windows, VMware, VMware vSphere ESXi, VMware vCenter, VMware vRealize Operations Manager, Microsoft Active Directory, PowerShell, Linux, AutoCAD, SolidWorks, ANSYS HFSS, DNS, DHCP, TCP/IP
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Staff Linux System Administrator, TS/SCI / Onsite: CO
Littleton, Colorado, United States
$105k-$184k/yr OnsiteFull Time
5+ YOEActive TS/SCI with CI poly, U.S. citizenship, DoD 8572 (e.g., Security+), 5+ years RHEL administration, scripting/automation (Ansible, Python, Bash, PowerShell), DISA STIGs and security hardening experience.
Red Hat Enterprise Linux, Ansible, Python, Bash, PowerShell, DISA STIGs, Nessus, Trellix, Splunk, ACAS, SCAP, NetApp
2w
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System Administrator 3 - Linux / Cloud
Centennial, Colorado, United States
$100k-$166k/yr OnsiteFull Time
4+ YOEBachelor in STEM and 4+ years Linux administration experience; cloud (AWS/Azure), monitoring, patching, backups, scripting (Bash/Python) and troubleshooting; strong communication and operational discipline; must be U.S. Person per ITAR.
AWS, Azure, Bash, Python, Ansible, Terraform, Docker, Kubernetes
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ITS Sr Systems Administrator (Lakewood, CO, US)
Lakewood, Colorado, United States
$98k-$123k/yr OnsiteFull Time
5+ YOE5+ years in system administration; hybrid cloud experience; Azure and VMware/Nutanix expertise; strong networking and storage knowledge; IaC and automation skills.
Microsoft Windows Server, VMware, Nutanix, Cohesity, NetApp, Cisco, Dell, Microsoft Azure, Terraform, Bicep, Kubernetes, Azure Arc, Azure Monitor, Azure SQL, Azure Storage, Azure VMs, DNS, PowerShell, Python, Bash, Linux
3mo
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IT Systems Administrator Manufacturing and Corporate Systems
Commerce City, Colorado, United States
$29-$44/hr OnsiteFull Time
3+ YOE3–5 years administering IT systems (preferably in manufacturing). Strong Microsoft stack knowledge (Windows 10/11, Windows Server, Active Directory, Microsoft 365/Entra ID, Azure, PowerShell), networking, virtualization, CAD support (SolidWorks/Catia/NX/MATLAB), and user support; willingness for occasional evenings/weekends and up to 10% travel.
Windows 10, Windows 11, Windows Server (2012R2–2022), Active Directory, Microsoft 365, Entra ID, Azure, PowerShell, SolidWorks, Catia, NX, MATLAB, VMware, AWS, Python, Bash, C#, JavaScript, SQL, KQL, Linux, MacOS, ERP, Manufacturing Execution Systems
2mo
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IT Systems Delivery Administrator
Centennial, Colorado, United States
$80k-$90k/yr OnsiteFull Time
5+ YOEBachelor's in Information Systems or related field; or 5+ years of experience; DOD 8570 (Security+); TS/SCI clearance; US citizenship.
Microsoft Windows operating systems, Microsoft Active Directory, Linux operating systems, Microsoft Office, Computer networking
1w
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JEI - IT Systems Administrator Level I
Lakewood, Colorado, United States
$65k-$75k/yr OnsiteFull Time
3+ YOE3+ years administering Windows endpoints with Intune/Autopilot, Active Directory/Entra ID administration, PowerShell/Microsoft Graph scripting, enterprise patching and endpoint security, and experience with incident/change management.
Microsoft Intune, Windows Autopilot, Configuration Manager (SCCM), Active Directory, Microsoft Entra ID, SAML, OIDC, PowerShell, Microsoft Graph, VMware vSphere, Veeam, Git, Microsoft 365, Microsoft Defender, Exchange Online, SharePoint, OneDrive, Microsoft Teams, Windows Server, Linux
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