58 network security engineer jobs at 50 companies in Fraser, CO
3mo
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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
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
2mo
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Lead Engineer, Network Security Platform
Birmingham or Bentonville or Phoenix or Tempe or Boulder or Denver or Hartford or Fort Lauderdale or Jacksonville or Miami or Orlando or Tallahassee or Tampa or Atlanta or Des Moines or Boise or Chicago or Indianapolis or Louisville or Baton Rouge or New Orleans or Shreveport or Baltimore or Detroit or Minneapolis or Kansas City or St. Louis or Jackson or Charlotte or Raleigh or Winston-Salem or Lincoln or Omaha or Montvale or Short Hills or Albuquerque or Albany or Buffalo or Rochester or Cincinnati or Cleveland or Columbus or Oklahoma City or Harrisburg or Philadelphia or Pittsburgh or Providence or Greenville or Knoxville or Memphis or Nashville or Austin or Dallas or Fort Worth or Houston or San Antonio or Salt Lake City or Ashburn or Richmond or Milwaukee or Virginia Beach
OnsiteFull Time
5+ YOERequires 5+ years of network security experience, Palo Alto and Zscaler expertise, GCP security engineering, Terraform or Ansible, and a high school diploma or GED; bachelor's degree preferred.
Zscaler, Google Cloud Platform (GCP), Palo Alto, Azure, Palo Alto firewalls, Strata, VM-Series, Panorama, Prisma Access, Terraform, Ansible, Cloud Armor, Zscaler Internet Access (ZIA), Zscaler Private Access (ZPA)
1w
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Sr. Network Engineer
Redwood City or San Diego or Denver
$100k-$140k/yr HybridFull Time
5+ YOEBachelor's degree or equivalent,5+ years network experience (preferably OT energy/data center),Azure networking, Palo Alto/Cisco experience, networking/security certifications, familiarity with NIST/ISA/IEC/NERC frameworks.
Microsoft Azure, Palo Alto Networks, Cisco, Dell Servers, Hyper-V, VMware, Kubernetes, Docker, SIEM, EPMS, BMS, NIST SP 800-82, ISA/IEC 62443, NERC CIP
1mo
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Sr Network Engineer- Cloud Security
Estero or Denver or Atlanta
$110k/yr RemoteFull Time
Bachelor's in CS/IT/Cybersecurity required; deep cloud networking/security across AWS and OCI; hands-on firewall and automation experience (Terraform, CloudFormation, Ansible, Python, PowerShell, Bash); familiarity with monitoring and compliance frameworks.
AWS, OCI, Palo Alto, Check Point, Fortinet, Cisco, AWS Network Firewall, OCI Network Firewall, Security Groups, NACLs, Transit Gateway, Direct Connect, OCI FastConnect, Cloud WAN, CloudWatch, OCI Logging/Monitoring, OCI Observability, Panorama, FortiManager, SIEM, Terraform, CloudFormation, Ansible, Python, PowerShell, Bash, ZTNA/SASE
3mo
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Principal Network Engineer
Denver, Colorado, United States
$160k-$180k/yr OnsiteFull Time
15+ YOE15+ years network engineering; 5+ years in service provider functions; routing/switching expertise; security tools experience; minimal travel; leads technical actions.
Cisco, Juniper, BGP, OSPF, EIGRP, Cisco ISE, Palo Alto
2mo
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Network Engineer / Level 3
Boulder, Colorado, United States
$86k-$151k/yr OnsiteFull Time
3+ YOE3+ years network engineering experience, BS degree typical, strong Layer 2/3 (VLAN, OSPF, BGP) and Cisco/Juniper skills, Security+ CE (or IAT Level II) required/obtainable, active Secret and ability to obtain TS/SCI.
OSI, TCP/IP, VLAN, OSPF, BGP, Cisco, Juniper, Cisco ACI, Juniper Apstra, Ansible, VMware, vSAN, Microsoft PowerPoint, Microsoft Visio, DISA STIGs, COMSEC, TACLANE
4w
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Sr. Network Engineer
Thornton, Colorado, United States
$120k-$135k/yr OnsiteFull Time
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
3w
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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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Senior Network Engineer
Denver, Colorado, United States
$104k-$166k/yr OnsiteFull Time
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
1mo
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Voice Network Engineer II
Lone Tree or Sparks or Englewood
$82k-$113k/yr OnsiteFull Time
2+ YOEBachelor's or equivalent experience, 2+ years in networking, experience with CUCM, MS Teams, SIP/SBC, TCP/IP, DNS, DHCP, SD‑WAN; CCNA/CCNP preferred; ability to obtain Secret security clearance; occasional travel and 25 lb lifting.
Cisco Unified Communications Manager (CUCM), MS Teams, Teams Phone, Webex, SIP trunking, Session Border Controllers (SBC), VoIP QoS, RTP/RTCP, TCP/IP, DNS, DHCP, SD‑WAN, Python, Ansible, AI
1mo
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Senior Network Engineer
Boulder, Colorado, United States
$96k-$136k/yr HybridFull Time
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
4w
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Sr Network Engineer - CCIE Contract 1
Denver or Fort Collins
$90k-$130k/yr OnsiteFull Time
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
1mo
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Sr. Network Systems Engineer
Denver or Littleton
$182k-$254k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
10+ YOEDesign and verify FPGA firmware for secure communications; Bachelor's in EE/CE; 10+ years FPGA firmware experience; proficiency in VHDL/Verilog/SystemVerilog and FPGA toolchains; ability to obtain U.S. government security clearance.
VHDL, Verilog, SystemVerilog, Xilinx Vivado, Intel Quartus, AXI, PCIe, SpaceWire, Ethernet, DO-254
1mo
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Network Engineer (TS/Q Clearance required)
Washington or Albuquerque or Germantown or Denver
$111k-$150k/yr OnsiteFull Time
12+ YOEUS citizen with 12+ years network engineering experience; expertise with Cisco routers/switches/firewalls, routing protocols (BGP, OSPF, EIGRP), and network security; DOE Q or TS clearance required; bachelor’s degree or equivalent.
Cisco Routers, Cisco Switches, Cisco Technologies, Network Firewalls, Juniper, Palo Alto, BGP, OSPF, EIGRP, STP, RSTP, VXLAN, LACP, Microsoft DNS, Unix BIND, DISA STIGs
4w
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Cloud Security Engineer (Remote Eligible)
Denver, Colorado, United States
$140k-$200k/yr RemoteFull Time
4+ YOE4+ years cloud security engineering experience securing Azure/hybrid environments; strong IAM, networking, encryption, cloud-native security tooling; scripting and IaC experience; relevant cloud security certifications preferred.
Microsoft Azure, Microsoft Defender for Cloud, Microsoft Sentinel, Defender XDR, Azure Monitor, Key Vault, KMS, Cloud KMS, SIEM, XDR, Python, Bash, PowerShell, Terraform, Bicep, ARM, AKS, ACI, Container Apps, Azure Functions, Logic Apps
3mo
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Tier III – Technical Support & Network Engineer (EMEA)
Denver, Colorado, United States
$100k-$120k/yr OnsiteFull Time
4+ YOE4+ years in technical support/engineering; strong troubleshooting; MSP/MSSP tooling; networking, firewalls, VPNs; Windows/macOS/Linux; Azure/M365; security concepts.
RMM, PSA, Microsoft 365, Azure, Windows, Linux, Network Security
2w
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Security Engineer (Denver, CO) - Heartland (Remote)
Denver, Colorado, United States
RemoteFull Time
Hands-on network security experience with firewalls and secure access; troubleshooting networking (routing, NAT, VPN); OS proficiency (Windows, macOS, Linux); strong communication and advisory skills; pre-sales/client-facing experience preferred.
Palo Alto Networks, Checkpoint, Fortinet, CrowdStrike, SentinelOne, Zscaler, Microsoft Defender, Carbon Black, Splunk, Cisco, Greenhouse, Zoom Scheduler
4w
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Senior Offensive Security Engineer - Pentester
Denver or Washington or Seattle or Charlotte or Jacksonville or Jersey City or Chicago
$160k-$205k/yr OnsiteFull Time
5+ YOE5+ years offensive security experience, proficiency with pentesting tools, strong understanding of networks/OS/Active Directory, ability to code (Python/Java/C#), report vulnerabilities, mentor junior engineers.
Burp Suite, Metasploit, nmap, Python, Java, C#
1mo
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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
2w
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Senior Information Security Engineer, Offensive Security
Boulder, Colorado, United States
$175k-$250k/yr OnsiteFull Time
3+ YOEMust be US citizen able to obtain TS/SCI with poly, Bachelor\u0002s in CS or 5 years\u0002 experience, minimum 3 years related experience, formal offensive cyber training, experience in network exploitation/red teaming, proficiency with UNIX/Linux and Windows.
UNIX, Linux, Windows