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151 network security jobs at 96 companies in Denver, CO

1mo
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Sr. Network Security Engineer
San Diego or Irvine or Los Angeles or Centennial or Las Vegas or Edison
$150k-$180k/yr OnsiteFull Time
Axos Financial
Axos FinancialNYSE: AX: Provides digital-first banking and diverse financial services to customers.
7+ YOE7+ years network security engineering experience with ZTNA and microsegmentation, strong networking fundamentals, familiarity with AI/ML agent development, bachelor's degree or equivalent experience, excellent communication skills.
Kindo.ai, n8n, Claude/Anthropic APIs, Zero Trust Network Access (ZTNA), microsegmentation, LLM
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1w
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IT Engineer - Network & Security
Naperville or Denver
$120k-$130k/yr HybridFull Time
PTMA Financial Solutions
PTMA Financial Solutions: Provides treasury and investment services to public sector entities.
3+ YOE3+ years in network/security or infrastructure engineering; SASE/firewall and cloud experience; EDR/SIEM/ITSM familiarity; ability to lift 30 lbs; occasional travel and rotating on-call duties.
SASE, Fortinet, Palo Alto, Netskope, Zscaler, EDR, SIEM, ITSM, Windows Server
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2mo
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Senior Staff Security Engineer - Network Security
Denver or San Francisco or New York City or San Jose
$210k-$270k/yr HybridFull Time
Gusto
Gusto: Cloud-based payroll and HR software for small businesses.
10+ YOE10+ years in security engineering; Cloudflare WAF/DDoS/Zero Trust; Terraform/Crossplane; AWS networking; incident response; AI-native workflows; security certifications.
Cloudflare, Terraform, Crossplane, AWS, CloudFront, WAF, DDoS, Zero Trust, Panther, Wiz, CrowdStrike, Claude Code, MCP-driven tooling, LLM automations
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2mo
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Network Architect
Boulder, Colorado, United States
$75k-$170k/yr OnsiteFull Time
Acuity Innovations
Acuity Innovations: Provides engineering and cybersecurity services for defense missions.
6+ YOE6+ years as network or data center systems engineer; 3+ years in network architecture; TS/SCI or Top Secret/SCI clearance; Bachelor's degree; certifications such as Network+, Security+, CISSP, CCNA, CCNP; experience with IPv4/IPv6, QoS, MPLS, BGP; OSI model knowledge; network security and cryptography basics.
IPv4, IPv6, QoS, MPLS, BGP, MS Visio, cryptography
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Sr. Network Engineer
Thornton, Colorado, United States
$120k-$135k/yr OnsiteFull Time
MYR Group
MYR GroupNASDAQ: MYRG: Specialty contractor providing electrical construction and infrastructure services.
7+ YOE7+ years enterprise network engineering experience (CCNP-level), strong routing/switching, network security, Azure hybrid networking, VMware networking, troubleshooting and on-call participation.
Wireshark, SolarWinds, PRTG, Dynatrace, NetFlow, sFlow, Python, PowerShell, VMware, VMware NSX, ExpressRoute, F5, Azure, Microsoft operating systems
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Network Engineer
Annapolis Junction or Aurora
$72-$111/hr OnsiteFull Time
EverWatch
EverWatch: Develops software and intelligence systems for government agencies.
8+ YOE8+ years as a Network Engineer; TCP/IP, DNS/DHCP, SNMP, VPN; configure/manage devices; LAN/WAN/cloud; security; monitoring tools; TS/SCI with polygraph; HS diploma or GED.
Cisco hardware, SolarWinds, Wireshark, Nagios, Firewalls, IDS/IPS, VPN, Encryption
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1w
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Senior Network Engineer
Denver, Colorado, United States
$104k-$166k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
8+ YOE8+ years supporting enterprise network infrastructure; DISA STIG and secure federal experience; Cisco networking, routing/switching, VOIP, encryption, and troubleshooting skills; active TS/SCI or Q/SCI clearance.
Cisco, SolarWinds, OSPF, BGP, IPSec, VOIP
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Secure Network Engineer
Boulder, Colorado, United States
$150k/yr OnsiteFull Time
Entarian
Entarian: Provides mission-critical engineering and technology solutions for government agencies.
7+ YOE7+ years in secure networking, DoD/IC programs, MBSE, and compliance with DISA RMF/STIGs; TS/SCI preferred.
MBSE tools (Cameo, Rhapsody, MagicDraw)
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2d
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Principal Network Architect
Denver, Colorado, United States
$130k-$160k/yr OnsiteFull Time
Kongsberg Satellite Services
Kongsberg Satellite Services: Provides global satellite ground station and communication services.
10+ YOEU.S. citizen with 10+ years network architecture experience; expertise in WAN/SD-WAN, hybrid-cloud networking, BGP/OSPF/MPLS, IPSec VPN, NIST security frameworks; ability to obtain/maintain US SECRET clearance.
SD-WAN, IPSec, BGP, OSPF, ISIS, MPLS, EVPN, VXLAN, Microsoft Azure Government, AWS GovCloud, Python, Ansible, AWX, GitLab, Terraform, NetBox, Firewall, VPN concentrator
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3mo
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Network and Infrastructure Architect
Carlsbad or Germantown or Englewood
$142k-$264k/yr HybridFull Time
Viasat
ViasatNASDAQ: VSAT: Provides global satellite broadband and secure networking communication services.
8+ YOE8+ years in systems engineering, networking and infrastructure; cloud and on-prem expertise; security-focused design; experience with public cloud, Kubernetes/OpenStack; collaboration.
Kubernetes, OpenStack, Cloud, Infrastructure Automation, Networking
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Network Lead Engineer (IT)
Denver, Colorado, United States
$115k-$183k/yr RemoteFull Time
DaVita
DaVitaNYSE: DVA: Provides kidney dialysis and integrated chronic disease management services.
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
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Network Engineer (Level 2 OR 3)
Aurora, Colorado, United States
$83k-$125k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
2+ YOEBachelor's in STEM with 2+ years for Level 2 or 5+ years for Level 3; TS/SCI with poly; Security+; travel 30%; Cisco network experience; Linux/Windows; firewall and load balancer knowledge.
Cisco Router, Cisco Switches, Firewalls, Load Balancers, COMSEC, Linux, Windows, Networking
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2d
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Sr IT Network Engineer
Englewood, Colorado, United States
$48-$78/hr RemoteFull Time
CommonSpirit Health
CommonSpirit Health: Operates a national non-profit Catholic health system.
7+ YOE7+ years engineering/architecture experience with Cisco networking, active experience designing/implementing enterprise networks, proficiency with network protocols, security, and multi-vendor environments.
Cisco Nexus, Cisco Prime Infrastructure, Cisco DNA Center (DNAC), Cisco ISE, Cisco
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3mo
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Network Engineer Tier 3
El Segundo or Colorado Springs or Springfield or Offutt AFB or Denver or Australia or Las Cruces or Sacramento or Cape Canaveral or Pearl Harbor or John C. Stennis Space Center or Chantilly or Annapolis Junction or Kirtland AFB or Vandenberg Space Force Base or Wright Patterson AFB or Piti or San Antonio or United Kingdom
$105k-$231k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
10+ YOETS/SCI with polygraph required, 10+ years' network engineering experience, Bachelor's degree or equivalent, advanced knowledge of TCP/IP/OSPF/BGP/MPLS, experience with Cisco/Juniper, network monitoring, security principles, and leadership skills.
TCP/IP, OSPF, BGP, MPLS, Cisco, Juniper, ITIL
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3mo
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Security Technician
Littleton, Colorado, United States
$27-$40/hr OnsiteFull Time
LONG Building Technologies
LONG Building Technologies: Provides commercial HVAC, building automation, and security solutions.
2+ YOE2-year technical degree or 2 years of related IP-based networking/security experience; knowledge of IP networks; proficiency with access controls, video surveillance, and related systems; good customer service and communication.
IP Networking, Access Control, Video Surveillance, NVR, Intercom, PLC/HMI, Bluebeam, MS Office, Network Cabling, Digital/Analog Intercom System
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Senior Network Engineer
Boulder, Colorado, United States
$96k-$136k/yr HybridFull Time
ANG SIGNAL
ANG SIGNAL: IT and engineering services provider for government and commercial sectors.
8+ YOE8+ years network engineering experience; 3+ years with Cisco ISE, Aruba, and Clearpass; hands-on Cisco routers/switches; Layer 2/3 expertise; firewall and Fortinet experience preferred; strong communication; bachelor's degree desirable; subject to government security investigation.
Cisco ISE, Aruba, Clearpass, Cisco routers and switches, Fortinet
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1w
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Sr Network Engineer - CCIE Contract 1
Denver or Fort Collins
$90k-$130k/yr OnsiteFull Time
Advanced Energy
Advanced EnergyNasdaq: AEIS: Provides precision power conversion and control technology solutions.
5+ YOE5+ years enterprise network engineering experience, strong LAN/WAN/routing/switching knowledge, network security and hybrid cloud networking, vendor and contract management, bachelor's degree required.
Cisco
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3mo
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Network System Administrator/Information Security System Officer (ISSO)
Denver, Colorado, United States
OnsiteFull Time
IGRS
IGRS: Provides secure IT infrastructure and cybersecurity services for government clients.
6+ YOE6+ years computer security experience; US citizen; 8570 certification (CISSP or Security+); ability to obtain security clearance; must be able to work in a fast-paced team environment.
VMware, Windows Server, Linux, Microsoft Windows, Microsoft Office
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2mo
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Network System Engineer
Golden, Colorado, United States
$115k-$140k/yr HybridFull Time
Colorado 811
Colorado 811: A non-profit notification center for underground utility damage prevention.
8+ YOE8+ years network/system engineering experience, bachelor\u0002s degree required, cloud and on-prem expertise (Azure/AWS/GCP), Active Directory/Intune experience, scripting (PowerShell/Python), API and security knowledge.
Windows, Mac, Linux, Azure, Google, AWS, Microsoft 365, JIRA, MS Teams, SharePoint, OneDrive, Dropbox, Smartsheet, Workato, Python, Power BI, SQL, JSON, XML, WSDL, OpenAPI, Swagger, PowerShell, Postman, SoapUI, Insomnia, Hoppscotch, VMWare, Hyper-V, Azure DevOps, MS Project, Trello, Five9, Intune, Active Directory
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On-Site Field Network Technician
Denver, Colorado, United States
$23-$27/hr FieldFull Time
Pacific Office Automation
Pacific Office Automation: Sells and services office equipment and IT infrastructure.
Hands-on network field experience with network connectivity, security and Wi‑Fi; Windows server and desktop support; knowledge of networking protocols (SMTP, FTP, SMB, TCP/IP); valid driver\u0002s license and ability to travel locally.
Windows Server, Windows Desktop Operating Systems, Mac OS, VOIP, SMTP, FTP, SMB, TCP/IP
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