27 principal security engineer jobs at 19 companies in Fraser, CO
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Principal Security Engineer
San Francisco or Denver or New York City
$240k-$310k/yr OnsiteFull Time
10+ YOE10+ years security engineering experience; architecting secure systems, threat modeling, infra-as-code, and translating HIPAA/SOC2/PCI/HITRUST into engineering requirements; strong technical leadership and communication.
1w
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System Security Engineer - Principal
Broomfield or Boulder
$118k-$201k/yr OnsiteFull Time
6+ YOEBachelor's degree in engineering or related technical field and 6+ years of experience required. Active Top Secret clearance, ability to obtain Top Secret/SCI, and DoW-compliant security certification required.
Model Based Systems Engineering (MBSE), Splunk, Tenable SC, ACAS, HBSS, AWS, NIST, DISA STIGs, CIS benchmarks
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
2w
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Principal Systems Engineer
Centennial or Louisville
$174k-$239k/yr OnsiteFull Time
15+ YOEBachelor's in related field, typically 15+ years' systems engineering experience, active Secret U.S. security clearance, expertise in requirements, architecture, integration, V&V, and mentoring.
DOORS, CAMEO EA, Rhapsody, Matlab, SysML, Open Mission Systems (OMS), Universal Command and Control Interface (UCI), CCSDS, DTN, TSPI
3mo
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Principal Software Engineer
Denver, Colorado, United States
$225k-$270k/yr HybridFull Time
12+ YOEBachelor's in CS or equivalent; 12+ years software engineering; 5+ years in identity/security; hands-on leadership; strong Java; CIAM expertise.
Java, PostgreSQL, MySQL, OAuth, OpenID Connect, SAML, SCIM
3w
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Principal Cyber Security Engineer
Denver, Colorado, United States
$129k-$215k/yr OnsiteFull Time
7+ YOEActive TS/SCI with poly required; 7+ years cyber experience; Bachelor’s degree or 4+ years additional cyber experience; DoD 8570 IAT II; RMF, STIG, VMWare, Windows/Linux, networking experience.
VMWare, vCenter, ESXi, Python, JavaScript, Perl, Elastic, Logstash, Kibana, Risk Management Framework (RMF), DoD STIG, IDS
2mo
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Principal Systems Security Engineer / Senior ISSM
Lone Tree or Englewood
$165k-$227k/yr HybridFull Time
12+ YOE8+ MgmtTop Secret/SCI required. 12+ years IT security experience (or 16 years without degree), 8+ years ISSM experience, hands-on Nessus/Tenable, ELK, Splunk, DISA STIG application, NIST 800-53 RMF/ATO ownership, eMASS/XACTA, RHEL, vSphere, GitLab/GitHub, Bash.
Nessus, Tenable.sc, Tenable Security Center, Elasticsearch, Logstash, Kibana, Splunk, eMASS, XACTA, RHEL, vSphere, VMware, GitLab, GitHub, Bash, NIST 800-53 Rev 5, ISO 27001, CMMC
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Principal AI Security SA, AWS Security & Networking
San Francisco or Seattle or Arlington or New York or Denver
$183k-$284k/yr OnsiteFull Time
10+ YOE10+ years in technology domains, bachelor's degree in computer science, engineering, or mathematics, cloud transformation experience, executive communication, and security or AI architecture expertise.
1mo
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Principal RF Engineer
Boulder, Colorado, United States
$160k-$210k/yr HybridFull Time
U.S. citizen able to obtain security clearance; bachelor's in electrical engineering; extensive RF/microwave and antenna experience; HFSS/FEKO/CST/Microwave Office, MATLAB or Python proficiency; RF lab equipment experience; technical leadership and mentoring.
HFSS, FEKO, CST Studio Suite, Microwave Office, MATLAB, Python, Altium Designer
3w
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Principal Cybersecurity Engineer
Reston or Boulder
$185k-$277k/yr HybridFull Time
10+ YOE2+ Mgmt10+ years in cybersecurity with 2+ years technical leadership, Bachelor's degree, expertise in incident response, SIEM/SOAR, digital forensics, threat hunting, security automation, cloud-native security, scripting, and AI applied to security.
SIEM, SOAR, Agentic AI, Generative AI
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Principal Electrical Engineer
Denver, Colorado, United States
OnsiteFull Time
10+ YOEBachelor's in EE, 10+ years electronics development experience (including 2+ years technical leadership), strong Altium skills, analog power electronics and high-speed digital design experience, PCB manufacturability and lab bring-up, ability to obtain U.S. security clearance.
Altium Designer, Microsoft Office, Microsoft Project, Git
1w
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PRINCIPAL ELECTRICAL ENGINEER - POWER SYSTEMS
Denver or United States
$155k-$186k/yr HybridFull Time
12+ YOE5+ MgmtBSEE in electrical engineering, PE license, 12+ years in electric utilities including 5+ years in lead, supervisory, or project management roles, power systems expertise, US citizenship, driver's license, and security clearance.
ETAP, Microsoft Project, SKM, EasyPower
2w
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Principal Radio Systems Engineer
Denver, Colorado, United States
$213k/yr OnsiteFull Time
10+ YOE10+ years radio systems design experience, bachelor’s in EE, proficiency in modeling/simulation, RF system design, validation test plans, Python, and eligibility for U.S. personnel security/ITAR authorizations.
Python, Altium Designer
1mo
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Principal Software Systems Engineer
United States or Arlington or Denver or Houston or Merritt Island
RemoteFull Time
15+ YOEBachelor's in STEM (Masters preferred). 15 years' experience with BS (12 with MS) in aerospace software systems, MBSE and requirements management (DOORS), ability to obtain government security clearance, US citizenship required.
Model Based Systems Engineering (MBSE), DOORS
1mo
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OpenShift Engineer Senior Principal (Lead)
Westminster, Colorado, United States
OnsiteFull Time
8+ YOEBS or equivalent plus 8+ years experience; active TS/SCI with polygraph; multi-cluster OpenShift, GitLab CI, Terraform, Ansible, GitOps, Keycloak, and security/STIG/CMMC compliance experience.
Red Hat OpenShift, GitLab, Terraform, Ansible, Keycloak, Argo CD, Advanced Cluster Manager (ACM), Advanced Cluster Security (ACS), OpenShift Observability, OpenShift GitOps, vSphere, AWS, Ansible Automation Platform
3w
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Principal DevOps Engineer
Berthoud, Colorado, United States
$175k-$215k/yr OnsiteFull Time
8+ YOE8+ years in DevOps/SRE or platform engineering; hands-on with Azure GovCloud/AWS GovCloud, Terraform, Kubernetes, Docker, Helm, GitOps, Prometheus/Grafana, secrets management; ability to obtain U.S. security clearance.
Azure GovCloud, AWS GovCloud, Terraform, Helm, ArgoCD, Flux, Kubernetes, Docker, Prometheus, Grafana, GitOps, GitHub Actions, HashiCorp Vault, AWS/Azure Key Vaults, Packer, Ansible, K3s, Rancher, Artifactory, SonarQube, Open Policy Agent (OPA), Kyverno
1w
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Principal Mission Cloud Engineer
Denver or Long Beach
$205k-$320k/yr OnsiteFull Time
10+ YOE10–15+ years in cloud engineering; AWS and Azure expertise; active Secret clearance; DoD 8140 IAT Level III certification; cloud security, RMF, ATO, NIST, and classified infrastructure experience; bachelor's degree or equivalent.
AWS, Azure, VPCs, VNets, transit gateways, IAM, STIGs, NIST 800-53, CNSSI 1253, ICD 503, JSIG, RMF, ATO, FedRAMP High, CMMC, DevSecOps, Infrastructure as Code (IaC), CI/CD, Cross Domain Solutions (CDS), DNS
3mo
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Principal SDET, Cybersecurity Test Engineer (Lakewood, CO, US)
Lakewood, Colorado, United States
$144k-$180k/yr HybridFull Time
8+ YOE8+ years SDET experience; 5+ years cybersecurity testing; Bachelor's in CS/Engineering or equivalent; strong security testing capabilities and CI/CD experience.
C#, C++, Python, Docker, REST APIs, JSON, Azure, Git, SAST/DAST tools
2mo
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Principal AI Architect for Business Systems
Dayton or Westminster
$100k-$137k/yr OnsiteFull Time
8+ YOE8+ years technology experience with 3–5+ years in AI/ML or GenAI architecture; deep LLM/GenAI, MLOps/ModelOps, GCP/Vertex AI, Google Gemini, Oracle and Salesforce integration, RPA (UiPath/Automation Anywhere), JIRA/Confluence, security and governance experience.
AWS, Azure, Google Gemini, Google Cloud Platform (GCP), Vertex AI, BigQuery, Cloud Functions, IAM, APIs, n8n, Model Context Protocol (MCP), Oracle Fusion, Oracle OCI, Salesforce Einstein, Agentforce, Mulesoft, UiPath, Automation Anywhere, JIRA, Confluence, MLOps, ModelOps
1mo
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Cyber Researcher, Attack Emulation (Senior / Principal)
Burlington or Golden or Israel
$180k-$220k/yr RemoteFull Time
5+ YOE5+ years security research/penetration testing, 3+ years Python, strong Windows/Linux internals, reverse engineering, cloud (AWS/Azure), and proficiency with security tools (Metasploit, Nmap, Burp).
Python, Metasploit, Impacket, Nmap, Burp, IDA, Ghidra, WinDBG, Radare2, Windows, Linux, AWS, Azure
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