32 staff security engineer jobs at 21 companies in Frederick, CO

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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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Staff Security Engineer
New York City or Denver or Dallas or Miami or United States
$169k-$210k/yr RemoteFull Time
Rightway
Rightway: Healthcare navigation and transparent pharmacy benefit management services.
8+ YOE8+ years security engineering experience across application and cloud security, strong AWS security and IaC knowledge, experience in regulated environments (healthcare), ability to read backend code (Ruby, Node.js, Java), and experience with AI/LLM security guidance.
AWS, Terraform, CI/CD, SAML 2.0, OAuth, OIDC, Ruby, Node.js, Java, OWASP Top 10 for LLM Applications, OWASP GenAI Security Project
3w
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Staff Product Security Systems Engineer
Longmont, Colorado, United States
$120k-$1600k/yr OnsiteFull Time
nLIGHT
nLIGHTNASDAQ: LASR: Designs and manufactures high-power semiconductor and fiber laser systems.
5+ YOE5+ years systems or product cybersecurity engineering, Bachelor's in related field, US DoD clearance eligible, MBSE with Cameo, hands-on cybersecurity, MATLAB or C/C++/C#/Java experience.
Cameo Systems Modeler, MATLAB, C, C++, C#, Java, GitLab CI/CD
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Staff Cloud Security Engineer
Longmont or Westminster
$102k-$150k/yr OnsiteFull Time
Vantor
Vantor: Providing AI-powered spatial intelligence and high-resolution Earth observation.
5+ YOE5 years in DevOps/software/infrastructure engineering; US citizen with SECRET clearance; Cloud/CI/CD experience; Terraform/Kubernetes; Python/Java preferred.
Terraform, Kubernetes, CI/CD, Python, Java
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Principal Security Engineer
Englewood or Austin
HybridFull Time
Jeppesen ForeFlight
Jeppesen ForeFlight: Provides integrated software and data solutions for aviation flight planning.
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
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Staff Optical Engineer - AI&T, Space Imaging
Lexington or Boulder
$220k-$292k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOEBS in Engineering or Physics/Astronomy; 5+ years opto-mechanical experience; space/airborne environment experience; optical design/testing knowledge; active U.S. security clearance preferred.
Zemax, CODE V, MATLAB, Python, Interferometry software, Apre Reveal, 4D 4Sight, Zygo MX
2w
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Staff Turbomachinery Engineer
Berthoud, Colorado, United States
$132k-$165k/yr OnsiteFull Time
Ursa Major
Ursa Major: Designs and manufactures rocket engines and aerospace propulsion systems.
8+ YOEB.S. in mechanical or aerospace engineering, 8+ years turbomachinery experience, 5+ years CAD (Siemens NX or PTC Creo), experience with ANSYS/CFD, U.S. person and eligible for security clearance.
Siemens NX, PTC Creo, ANSYS FEA, CFX, Fluent
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Staff Network Engineer
Aurora, Colorado, United States
$161k-$241k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
12+ YOEBachelor's in STEM with 12+ years, or Master's with 10+, or PhD with 8+; active TS/SCI with full-scope polygraph; Security+ certification; 20% travel; WAN design expertise; network interconnections and equipment knowledge.
Cisco Routers, Cisco Switches, Firewalls, Linux, Windows, Load Balancers, COMSEC Equipment
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Staff Mission COMSEC Engineer
Denver or Long Beach
$160k-$265k/yr OnsiteFull Time
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
10+ YOE10+ years in security architecture or encryption engineering; TS/SCI with eligibility; DoD 8140 IAT Level III; TEMPEST for space; NSA Type 1 crypto; space system experience; Bachelor degree in CS/Cybersecurity/Engineering or related field.
TEMPEST, NSA Type 1 cryptographic solutions, NIST 800-53, CNSSI 1253, ITAR
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Staff Data Engineer
Denver or San Francisco
$190k-$264k/yr HybridFull Time
Checkr
Checkr: AI-powered platform for background checks and identity verification.
10+ YOE10+ years building scalable data platforms; expert PySpark, Python, SQL; experience with Kafka, Spark, Iceberg, data lakes, AWS; strong data modeling and security awareness.
PySpark, Python, SQL, MongoDB, Kafka, Spark, Iceberg, EKS, EMR, Serverless, Glue, Athena, S3, Databricks, Snowflake
1w
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Staff Radar Systems Engineer
Denver, Colorado, United States
OnsiteFull Time
LeoLabs
LeoLabs: Provides orbital intelligence and space domain awareness services.
10+ YOE10+ years radar/sensor systems engineering experience, bachelor's in a technical discipline, strong radar/RF/signal processing knowledge, requirements and test development, US citizenship and ability to obtain security clearance.
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Staff Electrical Engineer
Denver, Colorado, United States
OnsiteFull Time
Performance Drone Works
Performance Drone Works: Manufacturer of autonomous, tactical unmanned aerial systems for defense.
7+ YOEBachelor's degree plus 7+ years electronics development with technical leadership; expert Altium Designer; deep analog, digital, power electronics, embedded systems, high-speed design; signal/power integrity, EMI/EMC, reliability; ability to obtain U.S. security clearance.
Altium Designer
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Staff Software Developer
Boulder, Colorado, United States
$128k-$229k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
7+ YOERequires advanced software development experience (C++, Linux, multithreading, TCP/UDP sockets), 7+ years' experience (varies by degree), ability to obtain DoD security clearance, and strong communication and testing skills.
C++, TCP, UDP, Linux, GitLab, Git, Bash, Python, ZYNQ Ultrascale, Xilinx SDK, PetaLinux, SPI, I2C, UART, Ethernet, Unit Testing Tools
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Senior Staff DevOps Engineer
Denver, Colorado, United States
$168k-$220k/yr HybridFull Time
IonQ
IonQNYSE: IONQ: Develops and sells trapped-ion quantum computers and cloud services.
5+ YOE5 years in pipeline orchestration and Git workflows; 4 years IaC; 4 years containerization/Kubernetes; security scanning integration; AI Ops experience.
Jenkins, GitLab CI, GitHub Actions, Python, Bash, Go, OpenTofu, Terragrunt, Packer, Ansible, Docker, Kubernetes, EKS, Kyverno, Bottlerocket, Flux, Helm, Artifactory, Nexus, ECR, ACR, GAR, Trivy, OpenTofu test frameworks
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Staff Engineer, Ground Systems
Arvada, Colorado, United States
OnsiteFull Time
Quindar
Quindar: Cloud-native software for automated satellite mission operations.
8+ YOE8+ years building or operating aerospace/satellite/mission-critical software, strong systems and software breadth, experience with satellite ground systems/mission operations, effective cross-team communication, and active U.S. security clearance.
1mo
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Staff Electrical Engineer 1 (Acoustics Emphasis)
Littleton, Colorado, United States
$79k-$132k/yr OnsiteFull Time
Applied Research Associates
Applied Research Associates: Provides scientific research and engineering solutions for complex problems.
2+ YOEBS in Electrical Engineering, 2+ years relevant experience, strong analog/digital circuit skills, board bring-up, familiarity with acoustics and audio systems, Python/MATLAB experience, lab equipment proficiency, US citizenship and ability to obtain security clearance.
Python, MATLAB, Linux, Raspberry Pi, Altium, Microsoft Outlook, Microsoft Excel, Microsoft Word, Oscilloscope, Logic Analyzer, Function Generator, Audio Measurement Tools
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Senior Staff / Senior Machine Learning Engineer
Boulder, Colorado, United States
$126k-$193k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
5+ YOEBachelor's in a related field (or equivalent experience), 5+ years in machine learning/AI engineering, 3+ years Linux experience, proficiency with Python and ML frameworks, ability to obtain DoD security clearance, U.S. citizenship required, must work onsite in Boulder, CO.
Linux, Python, PyTorch, TensorFlow, scikit-learn, CUDA, cuDNN, TensorRT, ROCm, C++17/20/23
3w
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Embedded Software Engineer Sr. Staff
Littleton, Colorado, United States
$134k-$236k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Experience with embedded software development, mid-to-large scale system development, modern languages (C++, Java), HW/SW integration, Secret clearance (US citizen), Security+ preferred, Agile experience.
C++, Java
1w
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Project Engineer I
Dayton or Lone Tree or Miamisburg
HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
8+ YOEBachelor's in engineering, 8+ years engineering experience, 2+ years leading technical staff preferred, knowledge of requirements management, ability to obtain U.S. Secret security clearance, ability to lift 10 lbs, experience with process documentation.
MS Project, JIRA
3w
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Senior/Staff Software Engineer
Boulder or New York City
$155k-$200k/yr HybridFull Time
Sovrn
Sovrn: Provides software and data tools for digital publishers to monetize.
Deep expertise designing and evolving distributed scalable systems, strong focus on performance/security/compliance, IaC and scripting experience (Terraform/CloudFormation, Python/Bash/Go), and leadership/mentorship skills.
Java, Kafka, Redpanda, AWS, Databricks, Datadog, ONNX, Terraform, CloudFormation, Python, Bash, Go