HiringCafe
Join our community

53 linux systems administrator jobs at 31 companies in Boulder, CO

1mo
Save
Mark Applied
Hide
Sr Principal Linux Systems Administrator - Secret
Boulder, Colorado, United States
$129k-$194k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Linux Administrator II
Westminster, Colorado, United States
$33-$39/hr OnsiteFull Time
CesiumAstro
CesiumAstro: Develops phased array communication systems for satellites and aircraft.
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
Job PostingView all
14h
Save
Mark Applied
Hide
Principal Linux System Administrator
Aurora, Colorado, United States
$149k-$184k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
8+ YOE8+ years administering Linux systems (RHEL preferred), system hardening (STIG/SCAP), virtualization, networking, troubleshooting, and ability to obtain Secret clearance.
RHEL, RHEL 8, RHEL 9, RHEL 10, Red Hat Openshift, Kubernetes, VMware, VMware vSphere, Podman, Docker, Docker registry, Image registries, Pypi, Ansible, Bash, Python, Git, GitLab, CI/CD, minikube, DISA SCAP Compliance Checker, DISA STIG implementation
Job PostingView all
3w
Save
Mark Applied
Hide
Infrastructure/Systems Administrator
Sterling or Austin or Denver
$105k-$231k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Systems Administrator-Cleared
Denver or Folsom
$120k-$165k/yr OnsiteFull Time
Voyager Technologies
Voyager TechnologiesNYSE: VOYG: Provides advanced defense and commercial space technology solutions.
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
Job PostingView all
2mo
Save
Mark Applied
Hide
Systems Sr Administrator (IT)
Denver, Colorado, United States
$78k-$119k/yr OnsiteFull Time
DaVita
DaVitaNYSE: DVA: Provides kidney dialysis and integrated chronic disease management services.
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
Job PostingView all
1w
Save
Mark Applied
Hide
Systems Administrator - IT
Greenwood Village, Colorado, United States
$80k-$90k/yr OnsiteFull Time
York Space Systems
York Space SystemsNYSE: YSS: Designs and manufactures modular spacecraft platforms and mission solutions.
Maintain and support servers, networks, and systems; troubleshoot hardware/software; perform updates and asset lifecycle tasks. Associate degree or equivalent experience; CompTIA A+ acceptable; Windows/Linux and network fundamentals knowledge required.
Windows, Linux, TCP/IP, DNS, DHCP
Job PostingView all
1mo
Save
Mark Applied
Hide
Systems Administrator
Greenwood Village, Colorado, United States
$80k-$95k/yr HybridFull Time
GrowGeneration
GrowGenerationNASDAQ: GRWG: Retailer of hydroponic and organic gardening supplies and equipment.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Senior IT Systems Administrator
Broomfield, Colorado, United States
$110k-$175k/yr OnsiteFull Time
Katalyst Space Technologies
Katalyst Space Technologies: Develops robotic spacecraft for in-orbit satellite servicing and maneuvering.
6+ YOE6+ years administering corporate IT systems; strong Microsoft 365/Entra ID, endpoint and SaaS administration; networking fundamentals; Windows/Linux endpoint lifecycle management; scripting (PowerShell, Python, Bash); GitLab and IaC experience.
Microsoft 365, Entra ID (Azure AD), Microsoft Intune, Jamf, Kandji, PowerShell, Python, Bash, GitLab, Infrastructure as Code (IaC), Windows, Linux, TCP/IP, DNS, DHCP, VPN
Job PostingView all
3w
Save
Mark Applied
Hide
Staff Linux System Administrator, TS/SCI / Onsite: CO
Littleton, Colorado, United States
$105k-$184k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
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
Job PostingView all
3d
Save
Mark Applied
Hide
Systems Administrator II
Parker, Colorado, United States
$104k-$122k/yr OnsiteFull Time
Parker Water & Sanitation District
Parker Water & Sanitation District: Provides water and wastewater services to the community.
5+ YOEBachelor's in CS/IT or equivalent, 5+ years supporting enterprise servers/workstations, strong AD/Microsoft 365 and virtualization skills, valid driver's license.
Windows Professional, Windows Server, Linux, Active Directory, Microsoft 365, Intel, HP, Veeam, Nutanix, VMware, Exagrid, Microsoft Intune, Azure AD, Microsoft Exchange, SMTP, VoIP, TCP/IP, VLAN, VPN
Job PostingView all
5d
Save
Mark Applied
Hide
System Administrator 3 - Linux / Cloud
Centennial, Colorado, United States
$100k-$166k/yr OnsiteFull Time
United Launch Alliance
United Launch Alliance: Aerospace providing space launch services for satellites.
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
Job PostingView all
2mo
Save
Mark Applied
Hide
ITS Sr Systems Administrator (Lakewood, CO, US)
Lakewood, Colorado, United States
$98k-$123k/yr OnsiteFull Time
Terumo Blood and Cell Technologies
Terumo Blood and Cell TechnologiesTokyo Stock Exchange: 4543: Manufactures medical devices for blood and cell therapy processing.
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
Job PostingView all
2mo
Save
Mark Applied
Hide
IT Systems Administrator Manufacturing and Corporate Systems
Commerce City, Colorado, United States
$29-$44/hr OnsiteFull Time
Re:Build Manufacturing
Re:Build Manufacturing: Provides advanced engineering and US-based contract manufacturing services.
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
Job PostingView all
1mo
Save
Mark Applied
Hide
IT Systems Delivery Administrator
Centennial, Colorado, United States
$80k-$90k/yr OnsiteFull Time
Rincon Research Corporation
Rincon Research Corporation: Designs high-performance digital signal processing solutions for defense missions
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
Job PostingView all
1d
Save
Mark Applied
Hide
JEI - IT Systems Administrator Level I
Lakewood, Colorado, United States
$65k-$75k/yr OnsiteFull Time
Jacobs Entertainment
Jacobs Entertainment: Owns and operates casinos, hotels, and entertainment facilities.
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
Job PostingView all
2w
Save
Mark Applied
Hide
Systems Administrator (TS/SCI Clearance Required with agreement to obtain CI Poly)
Alexandria or Chantilly or Englewood or Gaithersburg or Tucson or Saint Louis
OnsiteFull Time
North Point Technology
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance with agreement to obtain CI Poly, Linux/Windows administration, virtualization (VMware/KVM), automation (Ansible, PowerShell, Bash, Python), cloud (AWS GovCloud/Azure Government), STIG/RMF compliance, DoD 8570 IAT II/III, bachelor's degree preferred.
Red Hat Enterprise Linux, CentOS, Windows Server, VMware, KVM, Ansible, Bash, PowerShell, Python, AWS GovCloud, Azure Government, ACAS, Git, Jenkins, Docker, DNS, DHCP, Active Directory, PKI
Job PostingView all
1mo
Save
Mark Applied
Hide
Sr Systems Security Engineer / Sr. Core Applications Administrator
Lone Tree or Englewood
$143k-$197k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
8+ YOERequires active Top Secret/SCI clearance, bachelor\u0002s degree (or equivalent experience), 8+ years IT/security experience, RHEL/Linux application administration, GitLab/GitHub and JFrog Artifactory administration, DISA STIG/ATO experience, and scripting (Bash; Python/Ansible preferred).
Red Hat Enterprise Linux (RHEL), CentOS, Rocky Linux, RPM/YUM/DNF, systemd, SELinux, firewalld, iptables, Bash, Python, Ansible, Apache Tomcat, JBoss/WildFly, Apache HTTPD, Nginx, JFrog Artifactory, JFrog Xray, GitLab, GitLab CI, GitHub, Jenkins, 3DEXPERIENCE (3DX), Cameo Systems Modeler, Teamwork Cloud (TWC), Jama Connect, Siemens Teamcenter, PostgreSQL, Gitaly, Docker, Kubernetes, OpenShift, LDAP, Kerberos, PAM, SSSD, Flexera/FlexLM, DISA STIG, SAML, SSO
Job PostingView all
3w
Save
Mark Applied
Hide
AWS Systems Admin III - ACE Product Engineering
Seattle or Brevard County or Denver
$151k-$231k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
3+ YOE3+ years AWS infrastructure administration, IaC (Terraform/Ansible/CloudFormation), scripting (Python/Bash/PowerShell), Linux, relational DBs, PLM backend support experience, Git/CI-CD, and must be a U.S. Person.
EC2, VPC, EFS, S3, RDS, ALB, Lambda, Terraform, Ansible, CloudFormation, Python, Bash, PowerShell, Oracle, MS SQL, Linux, Git, Datadog, Splunk, PagerDuty, Docker, Kubernetes, Teamcenter, Windchill
Job PostingView all
2d
Save
Mark Applied
Hide
Unix Administrator
Denver, Colorado, United States
OnsiteFull Time
NuAxis Innovations
NuAxis Innovations: Provides IT infrastructure and customer experience solutions for government agencies.
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
Job PostingView all

Explore Jobs

Expand Your Job Search