28 active directory administrator jobs at 19 companies in Thornton, CO

3mo
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System Administrator III
Denver, Colorado, United States
HybridFull Time
Onward Energy
Onward Energy: Independent U.S. power generator owning and operating utility-scale wind, solar, and natural-gas projects for electricity customers.
7+ YOE7+ years system administration experience with Windows Server, Active Directory, virtualization, Azure, Microsoft 365, Intune, Hyper-V and strong troubleshooting and documentation skills.
Active Directory, Group Policy, DNS, DHCP, Microsoft Azure, Microsoft 365, Office 365, Entra, Exchange Online, SharePoint Online, Teams, Intune, Hyper-V, SAML, SCADA, PowerShell, Azure CLI
1mo
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Systems Administrator II
Broomfield, Colorado, United States
$79k-$135k/yr OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
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
3w
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Senior Systems Administrator
Loveland or Ames
$95k-$105k/yr HybridFull Time
Hach
Hach: Hach is a private water-analysis instrument, reagent, and software manufacturer serving municipal and industrial water operators.
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
3w
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Technical Systems Administrator II
Louisville, Colorado, United States
$87k-$120k/yr OnsiteFull Time
Sierra Space
Sierra Space: Commercial space and defense technology.
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
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Principal Systems Administrator
Westminster, Colorado, United States
OnsiteFull Time
BAE Systems
BAE SystemsLSE: BA.: Global defense, aerospace, and security technology.
6+ YOEBachelor's degree and 6+ years of related experience, or high school diploma and 10+ years. Requires active Top Secret clearance, Windows, VMware, Active Directory, networking, and PowerShell expertise.
Microsoft Windows, VMware, vSphere ESXi, vCenter, vRealize Operations Manager, Microsoft Active Directory, PowerShell, Linux, AutoCAD, SolidWorks, ANSYS HFSS, DNS, DHCP, TCP/IP
1mo
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System Administrator
Aurora, Colorado, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Global firm providing management, technology, and engineering consulting services.
Administer Windows Server 2022, VMware/vSphere, Active Directory, Group Policy; support classified networks; troubleshoot networking; TS/SCI with polygraph and DoD 8570 IAT Level II (e.g., Security+ CE).
Windows Server 2022, VMware, vSphere 8, Active Directory, Group Policy, Splunk, McAfee ePolicy Orchestrator (ePO), Domain Controller, PowerShell, RHEL 8, RHEL 9
1mo
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System Administrator
Aurora, Colorado, United States
$62k-$141k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Global firm providing management, technology, and engineering consulting services.
Experience administering Windows Server 2022, VMware/vSphere, Active Directory and Group Policy in secure/classified environments; DoD 8570 IAT Level II or equivalent; TS/SCI with polygraph required; strong troubleshooting and networking skills.
Windows Server 2022, VMware, vSphere 8, Microsoft Active Directory, Microsoft Group Policy, Splunk, McAfee ePolicy Orchestrator (ePO), Microsoft PowerShell, RHEL 8, RHEL 9, STIGs
2w
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IT System Administrator
Westminster, Colorado, United States
$71k-$90k/yr OnsiteFull Time
GeoStabilization International
GeoStabilization International: Private geohazard mitigation contractor providing design-build landslide repair, rockfall mitigation, grouting, and infrastructure stabilization across North America.
Associate's or bachelor's degree in a related field or equivalent experience; Windows Server, cloud, Azure, Active Directory, networking, virtualization, backup, troubleshooting, and security knowledge required.
Windows Server, Azure, Active Directory, Group Policy, DNS, DHCP, Microsoft Exchange, MDM, Microsoft Intune, VMware, Hyper-V, TCP/IP, VLANs, Aruba, Dell, HP, FortiGate, Veeam, SolarWinds, Microsoft Azure, AWS, Google Cloud, PowerShell, Azure AD/Entra ID
1w
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Tier 1 Systems Administrator - Tuesday-Saturday & Holidays
Boulder, Colorado, United States
$75k-$131k/yr OnsiteFull Time
Parsons
ParsonsNYSE: PSN: Technology and engineering solutions for defense and infrastructure.
0+ YOESecret DoD clearance with TS/SCI eligibility, Security+ or equivalent IAT certification, bachelor's degree or equivalent experience, and administration experience with Red Hat, Windows, Active Directory, virtualization, and networks.
Red Hat Enterprise Linux, Microsoft Windows, Microsoft Active Directory, VMware vSphere, VMware ESXi, Virtual Machines, Containers, Red Hat RPMs, HBSS, ACAS, OpenSCAP, ePO, SCC, KVMoIP, Security Information and Event Management (SIEM), Elastic, Linux, Docker, Kubernetes, Kickstart, DHCP, Ansible, SDN, RPM, Chef, Puppet, JIRA, DI2E, Confluence, VMware Workstation, VMware vCenter, AWS EC2, AWS S3, AWS Glacier, OpenShift, Shell, Python, Perl, NAS, SAN, CPU, GPU, Ethernet, IP
1mo
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Service Desk Administrator
Johnston or Melbourne or Tempe or Austin or Aurora or Greenwood Village or Corona or St. Paul or St. Louis or Sioux Falls or McHenry or Houston or Cedar Rapids
$50k-$81k/yr OnsiteFull Time
HR Green
HR Green: Private U.S. civil engineering firm providing planning, design, and consulting services to public and private-sector clients.
1+ YOE1–5 years help desk/IT support experience; working knowledge of Windows 11, Microsoft 365, Citrix, SCCM, Active Directory; valid driver’s license and reliable transportation.
Windows 11, Microsoft 365, Outlook, Teams, OneDrive, Citrix, SCCM, Active Directory, Entra ID (Azure AD)
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System Administrator / Tier II Support
Greenwood Village, Colorado, United States
$69k-$120k/yr HybridFull Time
Arcfield
Arcfield: Provider of mission-focused defense engineering and cybersecurity services.
2+ YOEMust maintain active TS/SCI with polygraph, DoD 8570 IAT Level II (e.g., Sec+, CISSP), 2+ years relevant experience (varies by degree), Windows, Active Directory, virtualization, networking, scripting, and Linux skills.
Windows, Active Directory, Exchange, VMware, Hyper-V, TCP/IP, DHCP, PowerShell, Bash, Python, Linux, Voice over IP, Microsoft On-Premise Software Center Configuration Management
1mo
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IT Systems Administrator Senior - IT
Greenwood Village, Colorado, United States
$105k-$115k/yr OnsiteFull Time
York Space Systems
York Space SystemsNYSE: YSS: U.S. space and defense prime building spacecraft and integrated mission solutions for national-security, government, and commercial customers.
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
3d
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IT Infrastructure Administrator
United States or Missouri or Austin or Boston or Chattanooga or Chicago or Dallas or Denver or Houston or Jefferson City or Kansas City or Los Angeles or Madison or Milwaukee or Minneapolis or Nashville or Oakland or Omaha or Phoenix or Providence or Springfield or Saint Louis or Washington
$45k-$142k/yr RemoteFull Time
Husch Blackwell
Husch Blackwell: U.S. full-service law firm providing legal counsel, litigation, regulatory, and transactional services to business and institutional clients.
3+ YOEHigh school diploma or GED required; 2-year degree preferred. Requires 3+ years of relevant experience, Windows Server and Azure/AWS knowledge, PowerShell/Bicep/batch scripting, and Active Directory, DNS, DHCP, and networking familiarity.
Windows Server, Azure, AWS, PowerShell, Bicep, Active Directory, DNS, DHCP, Azure Virtual Desktop (AVD), Microsoft Exchange Online, Microsoft Teams, Teams Phones, Microsoft Intune, Microsoft OneDrive for Business, ITIL
1w
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Staff Windows System Administrator - TS/SCI W/Poly - Littleton, CO
Littleton or Waterton or Bethesda or United States
$118k-$219k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Global security and aerospace driving innovative defense solutions.
Active TS/SCI clearance with CI Poly, U.S. citizenship, IAT II certification, and expert experience with Active Directory, Windows Server, server hardware, virtualization, vulnerability remediation, and security management.
Active Directory, Windows Server, HP OneView, iLO, iDRAC, VMware, Hyper-V, Nessus, Trellix, WSUS, MECM, Ivanti, Splunk, Linux, Ansible, PowerShell, Terraform, Chef, Puppet, Azure Local, KVM, Nutanix, SR-IOV, vRSS, MPIO, NetApp, Nimble, RackTop, Fibre Channel, iSCSI, RDS, Horizon View, XenDesktop
1w
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Staff Windows System Administrator - TS/SCI W/Poly - Littleton, CO
Littleton or Waterton or Washington
$118k-$219k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Global security and aerospace driving innovative defense solutions.
Active TS/SCI clearance with CI Poly, U.S. citizenship, IAT II certification, and expert experience with Active Directory, Windows Server, server hardware, virtualization, vulnerability remediation, and security management.
Active Directory, Windows Server, VMWare, Hyper-V, HP OneView, iLO, iDRAC, Nessus, Trellix, WSUS, MECM, Ivanti, Splunk, Linux, Ansible, PowerShell, Terraform, Chef, Puppet, Azure, KVM, Nutanix, SR-IOV, vRSS, MPIO, Fibre Channel, iSCSI, RDS, HorizonView, XenDesktop, NetApp, Nimble, Racktop
1mo
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Sr. Field Service Engineer / Sr Systems Administrator
Lafayette, Colorado, United States
$95k-$143k/yr RemoteFull Time
Medtronic
MedtronicNYSE: MDT: Global leader in medical technology and healthcare solutions.
10+ YOEBachelor's degree,10+ years IT experience with Windows and networking, virtualization, Active Directory, Wi‑Fi, scripting, and field installation experience in hospital environments; ability to travel frequently.
Microsoft Windows 10, Microsoft Windows 11, Microsoft Server 2016, Microsoft Server 2019, Microsoft Server 2022, Microsoft SQL Server 2016, Microsoft SQL Server 2019, Microsoft SQL Server 2022, Active Directory, VMware, Azure, Wi-Fi, Routers, Switches, VLANs, Subnets, Firewalls
2w
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Systems Engineer, IAM
Castle Rock or Austin
$115k-$135k/yr OnsiteFull Time
Riot Platforms, Inc.
Riot Platforms, Inc.Nasdaq: RIOT: Public U.S. digital infrastructure developing large-scale data centers, mining bitcoin, and engineering power systems.
4+ YOERequires 4+ years in systems engineering, administration, or identity and access administration; Microsoft Entra ID and Active Directory experience; PowerShell plus Python or C#; bachelor's degree or equivalent experience.
Microsoft Entra ID, Microsoft 365, Active Directory, Entra Connect, Microsoft Intune, Jamf, Exchange Online, Terraform, AWS CDK, SaltStack, GitLab CI/CD, GitHub Actions, Git, PowerShell, Python, C#, Prometheus, Grafana, StrongDM, Microsoft Graph, SAML, OIDC, MFA, PIM
2mo
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Manager, IT Systems Administration & Operations
Broomfield, Colorado, United States
$105k-$125k/yr HybridFull Time
Crocs
CrocsNASDAQ: CROX: Global leader in innovative casual footwear and accessories.
5+ YOE2+ Mgmt5+ years systems/endpoint administration, 2+ years leadership, experience with Intune/JAMF/endpoint platforms, Windows/Linux servers, Active Directory, PowerShell, VMware; bachelor's in CS/IS or equivalent experience preferred.
Microsoft Endpoint Manager (Intune), Patch-my-PC, JAMF, Active Directory, PowerShell, VMware, Office 365, Azure, Exchange, SharePoint, Python, Bash, EDR
3w
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Helpdesk Technician
Fairfax or Denver
$70k-$90k/yr OnsiteFull Time
M3 Technology Consultants
M3 Technology Consultants: Privately held managed IT service provider supporting small and midsize businesses and nonprofits.
4+ YOERequires 4–6 years in an MSP environment, strong troubleshooting and client communication skills, and experience with Microsoft platforms, Active Directory, DNS, networking, and Microsoft 365 administration.
Microsoft, Microsoft 365, Office 365, Active Directory, DNS, Mac OS, AutoCAD, Revit, WAN, LAN, VPN, Terminal Services, Citrix, Microsoft MCP, CompTIA A+
1w
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IT Support Specialist
Denver, Colorado, United States
$23-$28/hr HybridFull Time
Workplace Elements
Workplace Elements: Woman-owned commercial interiors dealer providing workplace furniture, flooring, construction, experiential design, and consulting to organizations.
2+ YOERequires 2+ years in IT support, Windows and macOS troubleshooting, Active Directory, Entra ID, Microsoft 365 administration, networking and cybersecurity knowledge, ticketing experience, and occasional evening/weekend availability.
Active Directory, Entra ID, Microsoft 365, Azure, Windows, macOS, Microsoft Teams, ERP, AI

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