283 systems administrator jobs at 169 companies in Frederick, CO
5d
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Systems Administrator
Aurora, Colorado, United States
$128k-$214k/yr OnsiteFull Time
15+ YOEBachelor's degree in a technical discipline or 5 additional years of experience; 15+ years in systems administration or related IT; RHEL experience; TS/SCI with polygraph required.
Red Hat Enterprise Linux (RHEL), Microsoft Windows, AWS
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
1mo
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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
3mo
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IT Systems Administrator
Englewood, Colorado, United States
$90k-$120k/yr OnsiteFull Time
4+ YOE4+ years IT systems administration; experience with cloud-native identity platforms (JumpCloud, Microsoft Entra ID/Azure AD), MDM, Windows and macOS endpoints, Ubiquiti UniFi, Zebra printers, and multi-site support.
Microsoft 365, Google Workspace, AWS, Warehance, Ubiquiti UniFi, JumpCloud, Microsoft Entra ID (Azure AD), Active Directory, RADIUS, Zebra ZPL, PrintNode, QZ Tray, Intune, Jamf, Kandji, PaperCut, AWS IAM
2w
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Systems Administrator II
Broomfield, Colorado, United States
$79k-$135k/yr OnsiteFull Time
2+ YOEBachelor's degree or equivalent experience, 2+ years systems administration, CompTIA Security+/DoD 8570 IAT II, Active Directory, VMware, endpoint hardening, STIG/RMF familiarity, TS/SCI eligible.
Active Directory, VMware, PowerShell, Python, Bash, RHEL, Windows
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
1w
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Senior Systems Administrator
Loveland or Ames
$95k-$105k/yr HybridFull Time
6+ YOEBachelor’s degree or equivalent experience; 6+ years in enterprise infrastructure or systems administration; expertise in Windows Server, Active Directory, DNS/DHCP, Group Policy, VMware, PKI, email authentication, vulnerability remediation, and PowerShell.
Windows Server, Active Directory, VMware, DNS, DHCP, Group Policy, DKIM, SPF, DMARC, SSL/TLS, PKI, PowerShell
2mo
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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
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
20h
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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)
1mo
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Systems Administrator, Tech Infrastructure
Saint Petersburg or Denver or Southfield
$60k-$100k/yr OnsiteFull Time
0+ YOETranslate functional specs, document interfaces, analyze and validate requirements, produce reports, and support system development; bachelor’s degree in accounting, business administration, or computer and information science required.
2mo
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Systems Administrator
Tacoma or Aurora or San Antonio or Falls Church
OnsiteFull Time
8+ YOE8+ years experience in mobile application deployment, 4‑year degree in IT/math or equivalent, active IAT II and CE certifications to meet DoD 8570/8140, U.S. citizenship, and experience with web development technologies and secure DoD environments.
HTML, CSS, JavaScript, React, Angular, Vue, ASP.NET, C#, Sitecore, SQL, MVC5, PWAs, Jira
2mo
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Systems Administrator
Aurora, Colorado, United States
$92k-$138k/yr OnsiteFull Time
2+ YOEBachelor's degree with IT experience; TS/SCI clearance with poly; Linux/Windows admin; VMware; NAS storage; after-hours support.
Linux, Windows, VMware, NetApp, ON-TAP, RMF, STIG, Nessus, Tenable, Active Directory, GPO, Splunk
1w
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Sr Systems Administrator
Boulder, Colorado, United States
OnsiteFull Time
7+ YOERequires 7+ years in IT support or operations, networking and endpoint management experience, Level 2–3 escalation ownership, enterprise systems support, and strong communication skills.
Google Workspace, Zoom, Atlassian, Mobile Device Management (MDM), DNS, DHCP, VPN, Microsoft?
4w
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Systems Administrator (ERP)
Greenwood Village, Colorado, United States
$90k-$110k/yr HybridFull Time
8+ YOEBachelor's degree required; minimum 8 years ERP experience and 4 years ERP administration; strong T-SQL and SQL Server/SSMS experience; SSRS report development; Power BI experience a plus; strong troubleshooting and communication skills.
Deltek Vantagepoint, Deltek Vision, T-SQL, SQL Server Management Studio, SQL Server, SSRS, Power BI
1d
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QGenda Systems Administrator & Physician Scheduling
Aurora, Colorado, United States
$71k-$95k/yr OnsiteFull Time
3+ YOEBachelor’s degree in business, healthcare administration, information systems, computer science, public health, or related field, plus three years administering scheduling or healthcare workforce systems.
QGenda, Microsoft Excel, Epic, Microsoft Power BI, SQL, Python, Tableau
1mo
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Senior Systems Administrator
Aurora, Colorado, United States
$60k-$90k/yr OnsiteFull Time
Level 2 support experience with firewall, VPN, Azure, VMware, Microsoft 365/Office365, MS Exchange, SAN, backup, VoIP, RMM and ticketing systems; strong TCP/IP, switching/routing, documentation, and customer-service skills.
Microsoft 365, Microsoft Office365, Azure, VMware, MS Exchange, RMM, SAN, VPN, TCP/IP
1w
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Technical Systems Administrator II
Louisville, Colorado, United States
$87k-$120k/yr OnsiteFull Time
2+ YOEBachelor's or equivalent and typically 2+ years IT systems experience. Proficiency in OS installation/configuration, networking, virtualization, scripting, backup/recovery, Windows/Active Directory administration.
Ansible, Puppet, Chef, AWS, Azure, Active Directory, Computer Management
3w
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Systems Administrator - Collaboration Team
Rifle or Denver or Grand Junction
$60k-$105k/yr OnsiteFull Time
5+ YOE5+ years IT experience, BA/BS or equivalent, 2+ years on assigned system preferred, strong troubleshooting, scripting (PowerShell), AD and security experience, ability to obtain industry certification.
PowerShell, Active Directory, Microsoft 365, Microsoft Teams, SharePoint Online, Exchange Online, OneDrive
3w
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Systems Administrator - Level 4
Aurora, Colorado, United States
$129k-$194k/yr OnsiteFull Time
Active DoD TS/SCI clearance, 4–8+ years related experience (degree-dependent), RHEL and VMware experience, DoD 8570 IAT Level II (or obtain within 6 months), ability to lift 40 lbs, server administration and cross-platform networking skills.
RHEL, VMware, Active Directory
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