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403 systems administrator jobs at 224 companies in Castle Rock, CO

3mo
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SYSTEMS ADMINISTRATOR
Colorado Springs, Colorado, United States
$65k-$80k/yr OnsiteFull Time
Integrity Communications Solutions
Integrity Communications Solutions: Veteran-owned engineering firm providing MILSATCOM, communications, software, cybersecurity, and space operations support to defense and federal customers.
3+ YOEMid-level Systems Administrator with active Secret clearance, security certifications, Windows AD, cloud experience, and compliance in regulated environments.
Windows, Active Directory, Group Policy, Endpoint management, AWS, Azure, VMware, Microsoft 365 GCC High, Intune, Microsoft Defender, Purview
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3w
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Systems Administrator
Aurora, Colorado, United States
$128k-$214k/yr OnsiteFull Time
ManTech International
ManTech International: Advancing the future of defense through innovative technology.
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
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3w
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Sr. Systems Administrator
Denver, Colorado, United States
$136k-$166k/yr OnsiteFull Time
Boeing Intelligence & Analytics
Boeing Intelligence & Analytics: Private Boeing subsidiary delivering analytics, software engineering, cloud, and cyber solutions to the U.S. Intelligence Community.
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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2mo
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Senior Systems Administrator
Colorado Springs, Colorado, United States
$90k-$120k/yr OnsiteFull Time
Bluestaq
Bluestaq: Software firm building secure data-management platforms for defense, government, commercial, and allied organizations.
2+ YOEActive DoD Secret or Top Secret clearance, 2+ years systems administration experience, Linux and Active Directory administration, automation with Ansible/Terraform/Docker/Kubernetes, AWS familiarity, CompTIA Security+ required; Confluence and Jira experience.
Active Directory, Ansible, AWS, Confluence, Docker, Jira, Kubernetes, Linux, Packer, Terraform
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5d
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Systems Administrator III
Denver, Colorado, United States
RemoteFull Time
InnovAge
InnovAgeNASDAQ: INNV: Provider of Program of All-Inclusive Care for the Elderly.
6+ YOE6+ years in systems administration, Microsoft 365 infrastructure, data architecture, security, firewalls, servers, Windows servers, and ITIL; bachelor's degree or equivalent experience required.
Microsoft 365, SharePoint, Microsoft Teams, OneDrive, Microsoft Azure Active Directory, SAML, Windows Server, ITIL
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2mo
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Systems Administrator II
Lakewood, Colorado, United States
$92k-$105k/yr OnsiteFull Time
Developmental Disabilities Resource Center
Developmental Disabilities Resource Center: Colorado nonprofit developmental disability service provider supporting people with intellectual and developmental disabilities and their families.
6+ YOEBachelor's degree, 6+ years systems administration experience, Microsoft 365 and Windows Server expertise, IT service desk experience, Azure and network/security experience preferred.
Windows Server, Microsoft Azure, Microsoft 365, Active Directory, Group Policy, VPN
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1mo
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JIRA Systems Administrator
Colorado Springs, Colorado, United States
$90k-$105k/yr OnsiteFull Time
Abacus Technology
Abacus Technology: Privately owned U.S. professional services firm providing IT, engineering, communications, and management support to federal government clients.
5+ YOE5+ years systems administration experience with strong JIRA/Confluence expertise, Security+ certification, US citizenship, Secret clearance, Bachelor's degree (or equivalent experience), DoD experience preferred.
JIRA, Confluence, Microsoft SharePoint, Microsoft Server, VMWare, SAN
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6d
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Systems Administrator II
Aurora or Aurora
$70k-$75k/yr OnsiteFull Time
Oneida Technical Solutions
Oneida Technical Solutions: Tribal-owned IT and cybersecurity contractor serving government and commercial customers in secure, regulated environments.
Bachelor's degree or equivalent experience, 2–6 years in systems administration, Windows/Linux, virtualization, networking, DoD security compliance, Secret clearance, and IAT-Level II certification or higher.
Windows, Linux, VMware, Hyper-V, TCP/IP, DNS, DHCP, DISA STIGs, RMF, CompTIA Security+
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3w
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Systems Administrator Senior
Colorado Springs, Colorado, United States
$135k-$165k/yr OnsiteFull Time
Modern Technology Solutions, Inc.
Modern Technology Solutions, Inc.: Engineering services and technology solutions for national security.
10+ YOERequires 10+ years and a master's, 18+ years and a bachelor's, or 25+ years and an associate degree; Top Secret with SCI eligibility; cybersecurity or systems administration certification; Linux, networking, virtualization, automation, and scripting expertise.
Linux, Red Hat Enterprise Linux (RHEL), Microsoft Windows, Ansible, YAML, CISCO, Bash, Python, Local Area Network (LAN), Wide Area Network (WAN)
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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
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Sr Systems Administrator
Colorado Springs, Colorado, United States
$132k-$220k/yr OnsiteFull Time
Scientific Research Corporation
Scientific Research Corporation: Engineering and information technology services for government and industry.
10+ YOE10+ years managing DoD Windows environments, advanced virtualization, networking, security, and systems administration. Requires DoD 8570 IAT II certification, VDI certification, U.S. citizenship, and Top Secret/SCI clearance.
Nutanix HCI, Citrix CVAD, VMware ESXi, Dell VxRail, Microsoft Group Policy Objects (GPOs), WSUS, MECM, SCCM, SQL Server, Windows 10, Windows 11, PKI, KVMs, OSI, Wireshark, tcpdump, F5, NetScaler, GSLB, Amazon Web Services (AWS), Microsoft 365, HBSS, Axway Tumbleweed, OCSP, Everfox, Forcepoint, Raytheon, PowerShell, DNS, DHCP, Infoblox, Windows Failover Cluster, SPNs
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2mo
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Systems Administrator-Cleared
Denver or Folsom
$120k-$165k/yr OnsiteFull Time
Voyager Technologies
Voyager TechnologiesNYSE: VOYG: Develops defense and space technology systems.
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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2mo
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Systems Administrator
Greenwood Village, Colorado, United States
$80k-$95k/yr HybridFull Time
GrowGeneration
GrowGenerationThe Nasdaq Stock Market LLC: GRWG: Public hydroponic and organic gardening supplier serving commercial and home growers through retail, e-commerce, and wholesale channels.
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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1mo
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GCCS Systems Administrator
Colorado Springs, Colorado, United States
OnsiteFull Time
Paragon Cyber Solutions
Paragon Cyber Solutions: Veteran-, woman-, and minority-owned cybersecurity and IT consulting firm serving startups, commercial companies, and government agencies.
5+ YOERequires Top Secret/SCI clearance, GCCS-J experience or 5+ years Windows/Linux systems administration, BS (or equivalent), VMware, Microsoft Active Directory, DoD 8570 IAT Level II certification, and ability to travel up to 50%.
GCCS-J, Windows, Linux, VMware, Microsoft Active Directory (AD), Microsoft Operating Systems, Oracle, Sybase, Postgress, Tomcat, JBoss, NFS, SSH, NTP, LDAP, HTTP, Ansible
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2w
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Business Systems Administrator
Colorado Springs, Colorado, United States
$75k-$95k/yr HybridFull Time
HIS Envoys Group
HIS Envoys Group: Faith-driven financial advisory firm serving Christian individuals, churches, nonprofits, and businesses with investment and retirement planning.
3+ YOERequires 3+ years of systems administration experience, Salesforce and Microsoft 365 administration, Intune and identity management, end-user support, documentation, discretion, and hybrid work in Colorado Springs.
Salesforce, Microsoft 365, Exchange Online, Microsoft SharePoint, Microsoft Teams, OneDrive, Microsoft Entra ID, Microsoft Intune, Autopilot, Apple Business Manager, Dialpad, Microsoft Graph, BambooHR, PowerShell
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2w
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Systems Administrator I
Boulder, Colorado, United States
$75k/yr HybridFull Time
RIVA Solutions
RIVA Solutions: RIVA Solutions is a privately held IT contractor and systems integrator modernizing services for U.S. federal agencies.
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)
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2d
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Systems Administrator Lead
Littleton or Denver
$118k-$160k/yr HybridFull Time
Redwire Space
Redwire Space: Integrated Space and Defense Tech
Requires 8 years of directly related experience or a bachelor's degree in IT with equivalent experience, active Top Secret DOD clearance, CompTIA Security+ certification, Windows/Linux administration, cloud, network, and cybersecurity expertise.
Active Directory, Azure AD, Microsoft Office 365, AWS, Azure, Intune, Group Policy, STIGs, PowerShell, PowerCLI, VLAN, IP Addressing/Subnetting, Windows, Linux
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Systems Administrator (AHT)
Aurora, Colorado, United States
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOEBachelor's degree and 2 years of IT experience; Linux and Windows server administration, VMware, NAS storage, Top Secret clearance, Full Scope Polygraph, and DoD 8570 IAT Level 2 certification required.
Linux, Windows, VMware, NAS Storage, NetApp, ONTAP, Red Hat Enterprise Linux (RHEL), Windows 10, Windows Server, Group Policies (GPOs), Active Directory, Microsoft SharePoint, Splunk, Tenable, Nessus, ESXi, iptables, Wiki
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2w
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Systems Administrator (AHT)
Aurora, Colorado, United States
$92k-$138k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Global aerospace and defense technology.
2+ YOEBachelor's degree and 2 years of IT experience; Linux and Windows server administration, VMware, NAS storage, active Top Secret clearance, Full Scope Polygraph, and DoD 8570 IAT Level 2 certification required.
Linux, Windows, VMware, NAS, NetApp, ONTAP, Red Hat Enterprise Linux (RHEL), NISPOM, DCID 6/3, ICD 503, RMF, STIG, JAFAN, JSIG, RAID, Single Sign-On, ESXi, iptables, Windows 10, Windows Server, Group Policies (GPOs), Active Directory, Microsoft SharePoint, Splunk, Tenable, Nessus
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2d
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Systems Administrator
Aurora or Colorado
$80k-$130k/yr OnsiteFull Time
TekSynap
TekSynap: Technology moving at the speed of thought.
3+ YOERequires a bachelor's degree in IT, computer science, or related field, 3 years of Tier II/III escalation experience preferred, CompTIA Security+, Windows training, and active Top Secret/SCI with CI polygraph clearance.
Linux, Windows, Apple, ServiceNow
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