PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
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
1mo
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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
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
1mo
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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
2mo
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Systems Administrator
Lafayette, Colorado, United States
$120k-$170k/yr OnsiteFull Time
5+ YOE5+ years in Systems Administration; DoD Secret clearance; TS/SCI eligible preferred; Linux/RHEL, virtualization (VMware/Hyper-V), cloud (AWS/Azure), RMF, networking, security
Linux, RHEL, VMware, Hyper-V, AWS, Azure, RMF, Networking
2w
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IT Linux System Administrator 2
Centennial or Cape Canaveral or Decatur or Vandenberg AFB
$82k-$136k/yr OnsiteFull Time
2+ YOEBachelor in STEM or equivalent, minimum 2 years related experience, foundational Linux administration (RHEL/Rocky/AlmaLinux/Ubuntu), ability to obtain DoD TS/SCI, US citizenship required, basic networking and troubleshooting skills.
RHEL, Rocky, AlmaLinux, Ubuntu, Bash, Python, Ansible
2w
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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
2d
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Systems Administrator II
Boulder, Colorado, United States
$90k/yr HybridFull Time
2+ YOE2–4 years systems administration experience, bachelor’s degree or equivalent, U.S. citizenship and ability to obtain Public Trust, macOS/Jamf, UNIX/Linux, Windows, networking, backups, account and patch management.
macOS, Jamf Pro, Apple Business Manager, UNIX, Linux, Windows, TCP/IP, DNS, DHCP, BigFix, PDQ Suite, Graylog, Druva, Active Directory
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
1mo
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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
3d
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Systems Administrator - IT
Greenwood Village, Colorado, United States
$80k-$90k/yr OnsiteFull Time
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
2mo
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Principal Systems Administrator
Aurora, Colorado, United States
OnsiteFull Time
15+ YOE15 years of Systems Administrator experience; Bachelor's degree or 5 additional years of experience; TS/SCI with Full Scope Polygraph.
UNIX, Windows, Networking
1mo
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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
3w
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Senior IT Systems Administrator
Broomfield, Colorado, United States
$110k-$175k/yr OnsiteFull Time
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
2w
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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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Technical Systems Administrator II
Louisville, Colorado, United States
$84k-$115k/yr OnsiteFull Time
2+ YOEBachelor's or equivalent experience, typically 2+ years related experience, understanding of IT systems, software configuration, CI/CD, and proficiency in software environments and upgrades.
CI/CD, Windows, Linux, Git, VMware, Hyper-V, AWS, Azure
1mo
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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
2mo
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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
1mo
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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
2mo
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IT Senior Systems Administrator
Greeley, Colorado, United States
$87k-$96k/yr OnsiteFull Time
10+ YOETen or more years of equivalent IT experience; Azure, VMware, Cisco, and ITIL certifications required.
Azure, Terraform, Ansible, VMware vSphere, NSX, Storage vSAN, iSCSI, SQL Server, Python, PowerShell, Windows Server, Linux/Unix, AD/DS, RADIUS, NLB, IIS
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