17 it security engineer jobs at 12 companies in Littleton, CO
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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+ YOEBachelor’s degree or equivalent, 7+ years in IT security, CISSP, networking, Windows/Linux, cloud security, scripting, incident response, compliance, reporting, and cross-functional coordination.
SIEM, PAM, ZTN, IdP, IAM, CSPM, DLP, CIEM, DevSecOps, SSDLC, AWS, Azure, HCL, YAML, JSON, PowerShell, Python, Go, Shell, Windows, Linux
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
1w
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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
4d
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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
5d
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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 Service Engineer II - Onsite
Grand Lake, Colorado, United States
OnsiteFull Time
2+ YOE2-5 years IT support; strong Microsoft 365 admin; PowerShell automation; MSP experience preferred; security awareness.
PowerShell, Microsoft 365, Intune, MSP toolsets, Scripting
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
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
3w
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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
2mo
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Systems Engineer-IT / Level 2
Boulder, Colorado, United States
$70k-$124k/yr OnsiteFull Time
1+ YOESecurity+ certification, 1+ years professional experience, BS degree typically required, Linux and Windows system administration, system security implementations, and active government clearance (Secret) with ability to obtain TS/SCI.
OpenShift, AWS, Splunk, Linux, Windows, virtual machines, routers, switches, firewalls, intrusion detection/prevention systems
1d
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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
1d
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Systems Engineer-IT Sr - E3
Littleton or Denver or Bethesda
$96k-$178k/yr OnsiteFull Time
3+ YOERequires active TS/SCI clearance, U.S. citizenship, Security+ certification, 3+ years administering Linux and Windows servers, DISA STIGs, OS hardening, network troubleshooting, and configuration management.
Windows Server, Linux, DISA STIGs, Nessus, Trellix EPO, WSUS, Splunk, ACAS, SCAP, HBSS, Ansible, PowerShell, NetApp
3w
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Senior Backend and Integration Engineer (IT)
Denver, Colorado, United States
$85k-$135k/yr RemoteFull Time
7+ YOE7+ years back-end and integration engineering experience; Node.js, SQL, cloud database migrations, GCP BigQuery/Cloud SQL, Salesforce and middleware integration; strong security and API design skills.
Node.js, Salesforce, BigQuery, Cloud SQL, Google Cloud Platform (GCP), Microsoft SQL Server, Fuse, OWASP
1d
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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.
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