245 security administrator jobs at 134 companies in Colorado
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Senior IT Systems & Security Administrator
Denver, Colorado, United States
$100k-$130k/yr OnsiteFull Time
5+ YOE5+ years in systems administration, infrastructure, IT operations, or cybersecurity; bachelor's degree or equivalent; expertise in Microsoft, Azure Government, AWS GovCloud, networking, identity, endpoint security, and compliance.
Microsoft Windows Server, Microsoft 365, Microsoft GCC High, Microsoft Exchange Online, Microsoft SharePoint Online, Microsoft Teams, Microsoft OneDrive, Microsoft Intune, Microsoft Entra ID, Microsoft Azure Government, AWS GovCloud, Active Directory, Group Policy, DNS, DHCP, TCP/IP, VLANs, VPNs, EDR, Microsoft Defender, Microsoft Sentinel, Security Center, AES, RSA, ECC, TLS/SSL, FIPS 140-2/140-3, CMMC, NIST 800-171, FedRAMP, ITAR, DFARS
1mo
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Information Technology Security Administrator
Arvada, Colorado, United States
$115k-$145k/yr OnsiteFull Time
5+ YOE5+ years systems administration with strong IT security experience; U.S. citizenship and active DoD Secret clearance required; experience hardening endpoints, cloud security, IAM, MDM, EDR/SIEM, and vulnerability management.
CIS Benchmarks, DISA STIGs, NIST SP 800-171, NIST 800-37, NIST 800-53, Microsoft 365 GCC High, Google GCP, AWS Gov, Microsoft Intune, EDR, SIEM, CI/CD
1w
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Security & Compliance Administrator
Doral or McLean or Melbourne or Huntsville or Atlanta or Annapolis Junction or Colorado Springs or Fayetteville
$99k-$225k/yr OnsiteFull Time
2+ YOEExperience conducting security audits, enforcing policies, managing SIEMs/vulnerability scanners/identity solutions, ensuring DoD/IC compliance, Secret clearance, bachelor’s in cybersecurity or 2+ years (or 5+ years without degree).
SIEMs, Splunk, Microsoft Defender, AWS Security Hub, Azure Security Center, Tenable Nessus
4d
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Security Compliance and Training Administrator
Denver, Colorado, United States
$69k-$113k/yr OnsiteFull Time
3+ YOEBachelor's degree in a related field and 3 years of professional specialized-area experience; requires security training, contract administration, supervision, incident analysis, and LenelS2 or comparable system experience preferred.
LenelS2, enterprise video surveillance, access control systems
1w
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Course Administrator
Colorado Springs, Colorado, United States
$70k-$85k/yr OnsiteFull Time
2+ YOEProvides administrative and logistical support for USSF EPME courses, coordinating courseware, schedules, classrooms, students, faculty, IT, security, transportation, and mobile training operations.
Audio-Visual, IT help desk
2d
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Operations Administrator
Denver, Colorado, United States
$28-$30/hr OnsiteSeasonal
1+ YOERequires 1–2 years of office administration experience, airport security badge eligibility, Microsoft Office proficiency, problem-solving skills, attention to detail, independent work, and accurate multitasking.
Microsoft Outlook, Microsoft Word, Microsoft PowerPoint, Microsoft Excel, Microsoft Teams
1mo
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Sr Systems Security Engineer / Sr. Core Applications Administrator
Lone Tree or Englewood
$143k-$197k/yr HybridFull Time
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
2mo
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SYSTEMS ADMINISTRATOR
Colorado Springs, Colorado, United States
$65k-$80k/yr OnsiteFull Time
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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System Administrator
Aurora or Texas
$130k-$165k/yr OnsiteFull Time
Active TS/SCI clearance with CI polygraph, hands-on Windows and Linux administration, infrastructure troubleshooting, networking, virtualization, automation, security, and onsite Colorado work.
Windows, Linux, Windows 11, Windows Server 2022, Red Hat Enterprise Linux 8/9, Microsoft 365, Active Directory, Group Policy, DNS, DHCP, Exchange, WSUS, Kickstart, Bash, PowerShell, Git, Ansible, Terraform, Packer, GitLab, CI/CD, Nexus, Podman, Kubernetes, RKE2, K3s, Trident, Cisco Catalyst, Cisco Nexus, Palo Alto, Cisco VoIP, NetApp, Synology, Pure Storage, Veeam, Grafana, Prometheus, SolarWinds, Elastic Stack, Splunk, Nessus, Trellix, SCAP, CMMC
2w
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Network Administrator
Colorado Springs, Colorado, United States
OnsiteFull Time
4+ YOE4+ years enterprise/DoD network administration with Cisco and Juniper, routing (BGP, OSPF), switching (VLAN, STP), firewall/security knowledge, DoD 8570/8140 IAT II cert, active TS/SCI clearance.
Cisco, Juniper, BGP, OSPF, VLANs, STP, IOS, NX-OS, Junos, Python, Ansible, syslog, NetFlow, SNMP, SIEM
2mo
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Senior Systems Administrator
Colorado Springs, Colorado, United States
$90k-$120k/yr OnsiteFull Time
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
3mo
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Network Administrator SME
Colorado Springs, Colorado, United States
$110k-$160k/yr OnsiteFull Time
5+ YOETop Secret/SCI clearance, BS in CS or IT (preferred), 5+ years network administration/engineering, DoD 8140-aligned certifications (e.g., Security+).
NIPRNET, SIPRNET, WSOMS, RMCE LAN, WAN
2mo
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Cybersecurity & Compliance Administrator
Denver, Colorado, United States
$140k-$175k/yr OnsiteFull Time
7+ YOE7+ years in security administration/ops; MS365 security (Purview, Defender); incident response; CMMC/NIST; strong communication; US eligibility.
Microsoft Purview, Microsoft Defender, Microsoft 365, SIEM, EAC/Zero Trust, MFA
1mo
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JIRA Systems Administrator
Colorado Springs, Colorado, United States
$90k-$105k/yr OnsiteFull Time
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
2w
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Sr Linux Administrator
Centennial or Louisville
$136k-$187k/yr OnsiteFull Time
8+ YOEBachelor's or equivalent, typically 8+ years related experience, 3+ years cloud experience (AWS/Azure), advanced systems administration, security, scripting/automation, and leadership/mentoring skills.
AWS, Azure, Docker, Kubernetes, Jenkins, Ansible, Puppet, Chef
4w
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Senior IT Administrator
Westminster, Colorado, United States
$94k-$112k/yr OnsiteFull Time
5+ YOE5+ years IT support/systems administration, BS preferred, strong AD/Azure AD/Entra ID, Microsoft 365 and AWS experience, Intune/MDM, endpoint security, advanced troubleshooting, and documentation skills.
Microsoft Outlook, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Purview, Microsoft Entra ID, Active Directory, Intune, MDM, AWS, VPN
2w
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Unix Administrator
Denver, Colorado, United States
OnsiteFull Time
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
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
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System Administrator 1
Annapolis Junction or Colorado or Georgia or Hawaii or Texas or Utah or Virginia
$120k-$150k/yr OnsiteFull Time
5+ YOEFive years of systems administration experience, modern operating systems and network architecture experience, certification and accreditation, risk assessment, IA metrics, IAM Level I certification, and active security clearance with polygraph.
Linux, Unix, Windows, VMware
1w
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Senior Network Administrator
Denver, Colorado, United States
$125k-$146k/yr HybridFull Time
10+ YOEDesign, implement, and manage Cisco-based network infrastructure; 10+ years network administration experience; CCNP or 5+ yrs equivalent; strong TCP/IP, OSPF/BGP, security, Microsoft Terminal Services skills.
Cisco, Microsoft Terminal Services, Gateway Broker, RD Web
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