43 security software engineer jobs at 17 companies in Windsor, CO

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
2mo
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Principal Engineer, Mission Software
Arvada or Los Angeles or San Francisco or Seattle or Washington
HybridFull Time
Quindar
Quindar: Cloud-native software for automated satellite mission operations.
8+ YOE3+ MgmtLead complex software and systems engineering in aerospace/defense; architecture focus; leadership; government programs; security clearance readiness.
Programming, Software Architecture, Distributed Systems, APIs, Operator tooling, Mission-critical applications
2mo
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Sr Software Engineer, Ground Software
Centennial or Louisville
$157k-$215k/yr OnsiteFull Time
Sierra Space
Sierra Space: Develops spacecraft and infrastructure for orbital and space transportation
8+ YOEBachelor's degree or equivalent, 8+ years experience, multiple programming languages, design/architect complex software, Agile/Scrum, leadership, security clearance eligibility.
Python, React, Git, GitHub, GitLab, Bitbucket, FastAPI, Kubernetes, Helm, ArgoCD, JIRA, Confluence, Bash, PowerShell, Ansible, Docker, AWS, MySQL, PostgreSQL, MongoDB
1mo
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Embedded Software Engineer
Boulder, Colorado, United States
$93k-$133k/yr HybridFull Time
Emerson
EmersonNYSE: EMR: Engineering industrial automation and software solutions for global industries.
5+ YOEBS in engineering or related field, 5+ years embedded real-time software development experience with Linux-based systems, proficiency in C/C++, bash and Python, Git, familiarity with hardware interfaces and security standards, autonomous design skills, and legal US work authorization.
Linux, NXP PowerPC, C, C++, bash, Python, Git, Yocto, LFS, Gentoo, GDB, KernelShark, ftrace, Azure DevOps, TCP/IP, TLS, I2C, SPI, UART, oscilloscope, logic analyzer, debugger
2w
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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
3w
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Senior Cybersecurity Systems Software Engineer
Colorado Springs or Durham or Spring or Fort Collins or Andover
$170k-$323k/yr HybridFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides edge-to-cloud IT infrastructure and platform services.
10+ YOEBachelor’s degree in CS/Engineering/Info Systems, 10+ years cybersecurity engineering and software development, experience with security architectures, standards and certifications, strong communication and executive influence skills.
Post-Quantum Cryptography (PQC), EU Cyber Resilience Act (EU CRA), 802.1AR Device Identities, NIST SP 800-53, DISA SRG/STIG, Common Criteria, Agentic AI, FIPS, TLS, SSH, Cryptography
2mo
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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
2mo
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Software Engineer Sr
Boulder or King of Prussia
$93k-$164k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
3+ YOE3+ years coding experience in Java, C#, or C++; Agile experience; Secret security clearance required; BS degree typically required; experience with containerization and CI/CD preferred.
Java, C#, C++, Python, Docker, Kubernetes, CI/CD
1d
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Senior Software Engineer, Realtime Imaging
Boulder, Colorado, United States
$165k-$218k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOE5+ years C++ development, experience with low-latency high-throughput Linux systems, firmware debugging, networking/security fundamentals, and eligibility for U.S. security clearance.
C++, CUDA, GIT, JIRA, CI/CD, Linux, Nix, NixOS, C, Rust, Python
1w
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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
3w
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C++ Senior Staff/Senior Software Engineer
Boulder, Colorado, United States
$125k-$162k/yr OnsiteFull Time
SciTec
SciTec: Provides advanced remote sensing and missile defense technology solutions.
5+ YOEBachelor's in CS/physical science/math/engineering, 5+ years C++ experience, 3+ years Linux, strong data structures/algorithms and performance optimization, ability to work onsite in Boulder and obtain DoD security clearance.
C++ 17, C++ 20, C++ 23, Linux, CUDA, OpenCL, Python, Rust, Java, MATLAB, Jira, Confluence, Agile, Scrum
3w
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Software Development Engineer, AI Platform
Boulder, Colorado, United States
$130k-$196k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
5+ YOE5+ years backend engineering experience; Kubernetes and CRD experience; knowledge of network rules/istio/iptables; familiarity with agent sandboxes (LangChain, AWS AgentCore, Google ADK); distributed systems, security fundamentals, testing, monitoring, and strong communication.
Kubernetes, Custom Resource Definitions (CRDs), Istio, iptables, LangChain, AWS AgentCore, Google ADK
3d
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Software Engineer
Loveland, Colorado, United States
$111k-$185k/yr OnsiteFull Time
Keysight Technologies
Keysight TechnologiesNYSE: KEYS: Provides electronic design, test, and simulation software and hardware.
5+ YOEBS/MS in EE/CE/CS,5+ years SW development in C#/C++,experience with RF measurements and Keysight PNA/VNA preferred,eligible U.S. person and able to obtain DoD security clearance,10-25% travel.
C#, C++, Keysight PNA/VNA, Confluence, Jira, BitBucket, Signal Generator, Signal Analyzer
2mo
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Firmware Security Architect
Spring or Fort Collins or Chippewa Falls
$162k-$371k/yr OnsiteFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides global edge-to-cloud technology solutions and IT infrastructure services.
12+ YOEBachelor's or master's in CS or related; 12+ years embedded software; expertise in firmware security, C/C++, Python, Go; Linux development; RESTful APIs; SDLC; strong communication.
C, C++, Python, Go, Linux, RESTful API
2mo
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Firmware Security Architect
Spring or Fort Collins or Chippewa Falls
$162k-$371k/yr OnsiteFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Providing global edge-to-cloud infrastructure and IT solutions for businesses.
12+ YOEBachelor’s or Master’s in computer science or information systems; 12+ years embedded software experience; strong C/C++, Python, Go; Linux development; RESTful APIs; firmware security features (HWRot, IDEVID, Platform Certificates); SDLC mastery.
C, C++, Python, Go, Linux, RESTful API, Firmware Security Features
3w
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Sr DevSecOps Engineer
Lafayette, Colorado, United States
$125k-$187k/yr OnsiteFull Time
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
7+ YOEBachelor's degree and multi-year experience in embedded Linux, Yocto, CI/CD, secure software supply chain, vulnerability management, and embedded platform security; strong cybersecurity and risk-analysis skills.
AMD Zynq, Zynq UltraScale+, NVIDIA ORIN, SafeRTOS, FreeRTOS, Yocto, Docker, Snyk, SonarQube, Python, Bash, Go, Bitbucket, Jira, Bamboo, Confluence, GitHub, GitLab, CI/CD
1mo
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Principal Application Security Architect - 861
Broomfield, Colorado, United States
$184k-$230k/yr OnsiteFull Time
Quantinuum
Quantinuum: Building full-stack quantum computing hardware and software systems.
10+ YOEBachelor's degree; 10+ years in app security; 5+ years software engineering; US person; security and compliance expertise.
SAST, DAST, CI/CD, OWASP Top 10, AWS, Azure, GCP, Python, Java, JavaScript, Go, Jenkins, Git
2mo
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DevSecOps Engineer
Boulder, Colorado, United States
$140k-$160k/yr HybridFull Time
Auria
Auria: Engineering and software solutions for space and defense missions.
Develop and maintain CI/CD in multiple cloud environments; secure software delivery; manage DevSecOps toolchain; agile development; required security clearance.
Bash, YAML, Python, PowerShell, AzureCLI, Forge, GitLab, Ansible, Terraform, Nexus, Jenkins, AWS, Docker, Kubernetes
3w
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Sr DevSecOps Engineer
Lafayette, Colorado, United States
$125k-$187k/yr OnsiteFull Time
Medtronic
MedtronicNYSE: MDT: Developing and manufacturing medical technologies and therapies globally.
7+ YOEBachelor's degree plus significant embedded DevSecOps experience (platform security, CI/CD, Yocto/embedded Linux, supply chain controls, vulnerability management). Strong scripting (Python/Bash/Go) and tooling experience required; technical leadership expected.
AMD Zynq, Zynq UltraScale+, NVIDIA ORIN, SafeRTOS, FreeRTOS, Yocto, Docker, Snyk, SonarQube, Python, Bash, Go, Bitbucket, Jira, Bamboo, Confluence, GitHub, GitLab
3w
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Test Manager, Systems Integration & Test
Louisville or Denver
$170k-$205k/yr OnsiteFull Time
Red 6
Red 6: Provides augmented reality synthetic air combat training for military pilots.
8+ YOE3+ MgmtBachelor's in STEM, 8+ years test engineering experience, 3+ years leading people, hands-on hardware/software test experience, ability to obtain U.S. government security clearance (U.S. citizenship required).
Pytest, TestComplete, Playwright, Cypress, Selenium, JIRA, Jenkins, GitLab, TestRail, Xray, Python, C++, MATLAB, Bash
3d
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Senior Technical Program Manager - Security & Identity
Atlanta or Austin or Boulder or Charleston or Chicago or Cleveland or Columbus or Dallas or Detroit or Houston or Indianapolis or Las Vegas or Madison or Orlando or Phoenix or Portland or Reno
$164k-$202k/yr RemoteFull Time
New Relic
New Relic: Provides an observability platform for monitoring and improving software performance.
8+ YOE8+ years TPM/engineering experience, 6+ years program management, bachelor’s in CS or equivalent, experience delivering software products, strong communication and risk management skills.
New Relic