61 principal security engineer jobs at 40 companies in Colorado
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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
2d
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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
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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
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Principal Engineer
United States or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or Vermont or District of Columbia or New York or New Jersey or Washington or California
$188k-$277k/yr RemoteFull Time
16+ YOE16+ years building high-scale, secure cloud-native distributed systems; expert in Java or Go, AWS (Lambda, EKS, DynamoDB, Kafka); experience with LLMs/AI-driven workflows, APIs, data platforms, Kubernetes, Terraform, and CI/CD.
Java, Go, AWS, Lambda, EKS, DynamoDB, Kafka, GitHub Copilot, Anthropic Claude, LLMs, SQL, NoSQL, Redis, Spark, Kubernetes, Terraform, CI/CD
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
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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
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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
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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
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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
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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
1mo
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Principal Engineer
United States or Colorado or Hawaii or Illinois or Maryland or Massachusetts or Minnesota or New Jersey or New York or Vermont or District of Columbia or Washington or California
$188k-$277k/yr RemoteFull Time
16+ YOE16+ years building high-scale, secure cloud-native distributed systems; expert in Java or Go and AWS; experience with LLM-driven development, APIs, high-throughput data, Kubernetes/Terraform, and cross-team technical leadership.
Java, Go, AWS, Lambda, EKS, DynamoDB, Kafka, LLMs, GitHub Copilot, Anthropic Claude, SQL, NoSQL, Redis, Spark, Kubernetes, Terraform
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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
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Principal Automation Engineer
Colorado or Washington or California or New York City
$153k-$306k/yr OnsiteFull Time
10+ YOEB.S. in Computer Science or Engineering, 10+ years in solution/enterprise/platform architecture, hands-on experience with modern automation/integration platforms (n8n, Boomi, MuleSoft/Workato), cloud-native and AI/ML services, API and security best practices.
n8n, Boomi, MuleSoft, Workato, REST, webhook, OAuth, SSO, AWS, Azure, GCP
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
3w
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Principal Cloud Developer
Andover or Houston or Durham or Fort Collins or Roseville
$152k-$349k/yr HybridFull Time
10+ YOEBachelor's degree in CS/engineering/IS,10+ years experience,proficiency in Python/Java/Golang/JavaScript,cloud security and systems design expertise,strong communication and mentoring skills.
Python, Java, Golang, JavaScript
3w
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Principal Cloud Developer
Andover or Houston or Durham or Fort Collins or Roseville
$152k-$349k/yr HybridFull Time
10+ YOEBachelor's degree in CS/engineering,10+ years experience,expertise in software design,programming (Python,Java,Golang,JavaScript),cloud security and architecture,mentoring and technical leadership.
Python, Java, Golang, JavaScript
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Principal Project Engineer
Pueblo or Penrose
$140k-$170k/yr OnsiteFull Time
10+ YOE10+ years engineering/project experience or 14 years alternative; deep solid rocket motor/energetics experience; program leadership managing cost, schedule, technical scope; eligible for U.S. DoD security clearance; ability to meet explosives licensing requirements.
3w
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Principal Cloud Developer
Andover or Houston or Durham or Fort Collins or Roseville
$152k-$349k/yr HybridFull Time
10+ YOEBachelor's in CS/engineering/IS (or related),typically 10+ years experience, strong programming in Python/Java/Golang/JavaScript, cloud security and systems design expertise, leadership and mentoring experience.
Python, Java, Golang, JavaScript
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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
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