39 principal security engineer jobs at 25 companies in Centennial, 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.
1mo
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Principal Security Engineer
Englewood or Austin
HybridFull Time
10+ YOE10+ years in security engineering or architecture with 3+ years as a principal/staff-level IC; hands-on with cloud (AWS, Microsoft Azure), IAM, VPC, Okta/Entra ID/Azure AD, EDR/XDR, SIEM, SOAR; knowledge of NIST CSF, ISO 27001, SOC 2; strong communication and risk-to-engineering delivery.
Okta, Microsoft Entra ID, Microsoft Azure AD, AWS, Microsoft Azure, IAM, VPC, EDR, XDR, SIEM, SOAR, NIST CSF, ISO 27001, SOC 2, FAA, EASA, DoD, CMMC
16h
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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
2mo
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Principal Engineer, Firmware Security
San Jose or Longmont or Folsom
$161k-$318k/yr OnsiteFull Time
10+ YOEBachelor's degree, 10+ years security firmware experience, applied cryptography and post‑quantum expertise, proficiency in C and Python, experience with SoC/FPGA debugging, and knowledge of storage security standards.
C, Python, Rust, JTAG, FPGA, SoC, Caliptra
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
1w
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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
2mo
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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
2mo
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Principal Systems Engineer (TS/SCI with CI Polygraph)
Aurora, Colorado, United States
$225k-$300k/yr OnsiteFull Time
15+ YOE15–20 years' related experience; TS/SCI with CI Poly; BS in engineering or related field; MBSE/SysML; API design; cloud/hybrid integration; governance; security/compliance.
MBSE/SysML, JIRA, Confluence, System modeling, API design, Configuration management, Enterprise architecture frameworks, Cloud/hybrid integration
1w
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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 Test Engineer
Lone Tree or Englewood
$143k-$197k/yr OnsiteFull Time
14+ YOEB.S. in engineering, 14+ years test engineering experience, V&V and systems integration expertise, mentorship experience, ability to obtain and maintain U.S. Secret security clearance, and ability to lift 25 lbs.
1mo
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Principal/Sr. Principal DevOps Engineer
Aurora or Morrisville
$114k-$213k/yr OnsiteFull Time
5+ YOEActive Top Secret/SCI with CI polygraph required; 5+ years relevant experience for Principal (8+ for Sr Principal); Linux administration, Agile experience, ability to obtain Security+, and experience with CI/CD and infrastructure automation.
Terraform, Kubernetes, AWS, Flux, Helm, DynamoDB, NATS, Grafana, Prometheus, Loki, Jenkins, GitLab, Bamboo, Linux, Big Bang
4w
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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
2w
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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
2mo
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Sr Principal Network Engineer
Aurora, Colorado, United States
$129k-$194k/yr OnsiteFull Time
8+ YOEBachelor's in STEM with 8+ years or Master’s with 6+ years; TS/SCI with full-scope polygraph; Security+ certified; 20% travel; experience with WAN/LAN, routers, switches, firewalls, load balancers; engineering and design of network systems.
Cisco routers, Cisco switches, firewalls, load balancers, Linux, Windows, COMSEC equipment
1mo
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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
2d
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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
3w
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Engineer Principal – Linux Systems Integration
Westminster, Colorado, United States
OnsiteFull Time
6+ YOEBS+6 years (or equivalent) required, Top Secret clearance, proven Linux systems engineering experience with RedHat/RHEL, Ansible/Puppet automation, virtualization, and support for secure RMF environments.
RedHat Linux, Ansible, Puppet, Python, RHEL IdM, Satellite Server, DELL
1w
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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
2w
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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
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