23 it security engineer jobs at 17 companies in Castle Pines, CO
3mo
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Senior IT Security Engineer
Linthicum or Phoenix or Denver or Tampa or Cicero
$92k-$120k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent experience, 5+ years in IT security, CISSP, networking and security expertise, Windows and Linux administration, cloud security, scripting, analytical, communication, and collaboration skills.
SIEM, PAM, ZTN, IdP, IAM, CSPM, DLP, CIEM, DevSecOps, SSDLC, AWS, Azure, Windows, Linux, HCL, YAML, JSON, PowerShell, Python, Go, Shell
2mo
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Senior IT Security Engineer
Linthicum or Phoenix or Tampa or Denver or Cicero
$90k-$120k/yr OnsiteFull Time
7+ YOE7+ years IT security experience, CISSP required; expertise in networking, Windows and Linux administration, AWS/Azure, IaC (HCL/YAML/JSON), scripting (PowerShell, Python, Go, Shell), incident response, risk management, and security tooling.
firewalls, SIEM, PAM, ZTN, IdP, IAM, CSPM, DLP, Vulnerability/Exposure Management, CIEM, DevSecOps, SSDLC, AWS, Azure, HCL, YAML, JSON, PowerShell, Python, Go, Shell
2mo
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Senior IT Security Engineer - Mission System Cybersecurity & Compliance
Golden, Colorado, United States
$100k-$120k/yr OnsiteFull Time
4+ YOELead security controls and compliance, develop architecture, manage audits, and align with NIST/ITAR frameworks; experience with government contracting and cloud security.
NIST 800-171, NIST 800-53, FARS/DFARS, ITAR, SSP, POA&M, SCTM, GRC, SIEM, DLP, Cloud security, RMF, ISO
2w
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IT Hardware Engineer
Chantilly or Colorado Springs
OnsiteFull Time
4+ YOERequires TS/SCI clearance, DOD 8140 certification at least Security+, 8–16+ years based on education, and 4+ years designing, integrating, validating, and implementing IT hardware and software solutions.
Virtual Desktop Infrastructure (VDI), ITIL, Security+, Blue/Green
2w
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IT Engineer
United States or Denver or San Francisco or Alaska or Arkansas or Delaware or Hawaii or Maine or Mississippi or New Mexico or Oklahoma or South Dakota or Vermont or Wisconsin or Rhode Island
$96k-$125k/yr RemoteFull Time
3+ YOE3+ years in systems administration, IT engineering, or senior IT support; expertise in Okta, macOS administration, automation, Zero Trust, and IT security fundamentals.
Okta Workflows, Jamf, macOS, Okta, Single Sign-On (SSO), Privileged Access Management (PAM), Robotic Process Automation (RPA), Zero Trust, SOC2, HIPAA, HITRUST, API keys, Data Loss Prevention (DLP), OpenAI, AWS, Google Gemini
2w
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IT Hardware Engineer
Chantilly or Colorado Springs
$90k-$190k/yr OnsiteFull Time
4+ YOETop Secret/SCI clearance, DOD 8140 certification with Security+, qualifying degree and 8–16+ years' experience, plus 4+ years designing, integrating, validating, and implementing IT hardware and software.
Virtual Desktop Infrastructure (VDI), Information Technology Infrastructure Library (ITIL), Microsoft?
1d
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IT Platform Engineer
Golden, Colorado, United States
$120k-$160k/yr OnsiteFull Time
5+ YOERequires 5+ years of IT experience, SaaS API integration, Python/PowerShell/Bash automation, IAM, AWS, VMware, networking, security controls, troubleshooting, and stakeholder collaboration.
AWS, VMware, Okta, Google Workspace, GitLab, NetSuite, Atlassian, API, Python, PowerShell, Bash, SCIM, SAML, OAuth, SSO, EC2, WorkSpaces, VPC, VMware vSphere, ESXi, Docker, Kubernetes, Tailscale, HRIS, ETL, iPaaS, ITSM, SIEM, VPN, FSA, HSA, DLP, CI/CD
3d
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IT Network Engineer
El Segundo or Chantilly or Colorado Springs
$120k-$203k/yr OnsiteFull Time
10+ YOEBachelor's degree and 10+ years of enterprise network operations experience; Staff V requires 15+ years. Requires active TS/SCI, U.S. citizenship, Cisco networking expertise, and Security+ CE or CISSP.
Cisco SDWAN, Cisco IWAN, ASR, ISR Routers, Cisco Firewalls, MPLS, Internet, Cisco ACI, Nexus Dashboard, Cisco Firepower Firewalls, Cisco ASA Firewalls, Cisco Catalyst Center, DNA Center, KG-175F, EIGRP, BGP, Cisco Wireless LAN Controllers
10h
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IT Network Engineer II - 936
Broomfield or United States or Asia or Europe or United Kingdom or Germany or Japan
$86k-$108k/yr HybridFull Time
3+ YOEAssociate's degree and 3+ years of enterprise network engineering experience, including firewalls, Layer 2 switching, device installation, troubleshooting, security, and global infrastructure support. U.S. Person status required.
Azure, AWS, Juniper, Cisco, Palo Alto, SolarWinds, Wireshark, SNMP, Python, Perl, TCP/IP, VLANs, VPN, ACLs
1w
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Sr IT Systems Engineer
Louisville, Colorado, United States
$136k-$187k/yr OnsiteFull Time
8+ YOEBachelor's degree or equivalent experience, 8+ years in systems administration, 3+ years with AWS or Azure, infrastructure design, security, project methodologies, networking, automation, and technical leadership.
AWS, Azure, Docker, Kubernetes, Jenkins, Ansible, Puppet, Chef, Microsoft Certified: Azure Solutions Architect Expert
1w
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Sr IT Integration Engineer
Englewood, Colorado, United States
$50-$82/hr RemoteFull Time
7+ YOEBachelor's degree or equivalent experience; 7–8 years required. Requires healthcare workflow knowledge and integration experience with SFTP/FTP scripting tools, Tidal, and Axway Secure Transport.
API, ESB, SFTP, FTP, Tidal, Axway Secure Transport
2mo
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IT Support Engineer II
Denver, Colorado, United States
OnsiteFull Time
3+ YOE3+ years enterprise technical support; expert Windows/macOS troubleshooting; networking fundamentals (DNS, DHCP, VPN, Wi‑Fi); scripting (PowerShell/Bash); Entra/Azure AD, Intune/JAMF experience; ability to obtain U.S. security clearance.
PowerShell, Bash, Entra ID, Azure AD, Intune, JAMF
2mo
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IT Cloud Engineer
Niwot, Colorado, United States
HybridFull Time
8+ YOE8+ years IT systems/cloud engineering experience with extensive Microsoft Azure, on-premise infrastructure, networking, security, automation (PowerShell/Python/Bash), Azure certifications (AZ-104/AZ-105), and ITIL knowledge.
Microsoft Azure, Entra AD, Conditional Access, Microsoft Intune, Microsoft Active Directory Services, Microsoft Windows Server OS, VMware, Microsoft Office 365, Microsoft SharePoint, Microsoft Exchange Online, Microsoft Teams, Microsoft Viva, Microsoft Defender XDR, Cisco, Secure Endpoint, Microsoft Windows Defender, Zscaler, Citrix, Bash, PowerShell, Python, Autodesk, AutoCAD, Poly, Crestron, AMX
2mo
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IT Systems Engineer
Colorado Springs, Colorado, United States
OnsiteFull Time
5+ YOEBachelor's degree and 5+ years' systems engineering experience; US citizenship, active Secret clearance, ability to obtain TS/SCI; experience with cloud (AWS/Microsoft Azure/Google Cloud), virtualization, infrastructure automation, networking/security tools; relevant IT certifications desirable.
AWS, Microsoft Azure, Google Cloud, VMware, Microsoft Hyper-V, Puppet, Ansible, Terraform, Splunk, Tenable
1mo
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Network Lead Engineer (IT)
Denver, Colorado, United States
$115k-$183k/yr RemoteFull Time
8+ YOE8+ years enterprise network engineering experience with 2+ years in a senior/lead capacity; expert routing/switching, cloud network integration, security, load balancing, IPAM and monitoring; strong communication skills.
Cisco, HP Synergy, Infoblox, PagerDuty, Micro Focus NNMi, Google GCP, AWS, Azure, Workday, ServiceNow, Illumio, Palo Alto Prisma
4w
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IT Infrastructure Engineer
Petaluma or Denver
$120k-$145k/yr HybridFull Time
8+ YOE8+ years in IT support/systems administration in Microsoft 365 environments; expertise with endpoint security, networking, Azure/on‑prem infrastructure, documentation, and incident response.
Entra, Intune, Veeam, VMware vCenter, Windows Server, Azure Files, Cloudflare One, Unifi, Cisco, SentinelOne, KnowBe4 Defend, Deep Seas, Microsoft 365, Microsoft Defender for Endpoint, Cloudflare WARP, AWS EC2, Jira
1w
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Systems Engineer-IT Stf - E4
Littleton or Colorado
$118k-$219k/yr OnsiteFull Time
Requires active TS/SCI clearance with CI poly, U.S. citizenship, Linux administration experience, RHEL expertise, vulnerability remediation, Security+ eligibility, and ability to lift 30 pounds.
Linux, Unix, Red Hat Enterprise Linux (RHEL), Nessus, McAfee, WSUS, SCCM, Ivanti, Shavlik, Blade Logic, Splunk, ACAS, SCAP, HBSS, ELK Stack, Prometheus, TCP/IP, HTTP, SAN, NAS, Ceph, Ansible, Perl, Bash, PowerShell, Active Directory, OpenShift, Kubernetes, Docker, Podman, VMware, Horizon, vSphere, vCenter, vCloud, vRealize, NSX, vSAN, VXRail, NetApp, EMC
1w
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Information Technology Infrastructure Engineer - VMware and Automation
Denver, Colorado, United States
HybridFull Time
4+ YOEFour years in a technical role or equivalent education and experience, VMware infrastructure expertise, PowerShell scripting, Infrastructure as Code, Microsoft domain administration, security, monitoring, and disaster recovery skills.
1mo
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DoW SKILLBRIDGE - COS/HSV
Colorado Springs or Huntsville or Colorado Springs or Colorado Springs or Colorado Springs or Huntsville
$65k-$180k/yr OnsiteFull Time, Internship
SkillBridge internship for transitioning service members in government contracting, IT, engineering, architecture, finance, software, cybersecurity, satellite operations, project management, or intelligence.
IT, Systems Architecture, Software Development, Cybersecurity
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