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181 sr security software engineer jobs at 100 companies in Colorado

1w
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Software Security & Architecture Engineer
Colorado Springs, Colorado, United States
$129k-$194k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
6+ YOEBachelor's in computer/software engineering,6+ years in software architecture/engineering,ability to obtain US security clearance,experience with software supply chain security,SBOMs,containerization,cloud,team leadership.
SPDX, CycloneDX, VEX, Dependency-Track, Syft, Grype, Sonatype, DefectDojo
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3mo
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Software Engineer Sr.
Huntsville or Littleton or Sunnyvale
$93k-$186k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Requires US citizenship and Secret clearance. Experience with mid-to-large scale software development, modern languages (C++ or Java), HW/SW integration, embedded/flight systems, and Agile; Security+ desired.
C++, Java, Agile
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3mo
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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
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2mo
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Senior Software Security Engineer
Golden, Colorado, United States
$130k-$180k/yr OnsiteFull Time
Loft Federal
Loft Federal: Provides rapid orbital access for national security space missions.
5+ YOE5+ years in software development; 3+ years in security-focused roles; strong knowledge of DevSecOps, Zero Trust, container security; secure SDLC practices; scripting (Python, Bash, C++); Linux hardening; IaC; CI/CD security; security certifications.
Python, Bash, C++, Linux, IaC, Terraform, Helm, Ansible, SAST, DAST, SCA, SBOM, SonarQube
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2w
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Sr. Software Engineer (Contract)
Arlington or Denver or Houston or Merritt Island or United States
RemoteContract
Airbus U.S. Space & Defense
Airbus U.S. Space & DefenseEuronext Paris: AIR: Provides satellite, helicopter, and cybersecurity solutions for U.S. defense.
8+ YOEBachelor's in STEM (Masters preferred). 8 years' experience (6 with Masters) designing and developing embedded/aerospace software. Proficiency in C/C++. US citizenship and ability to obtain government security clearance required.
C, C++
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1w
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Senior Software Engineer, Identity Security (Golang)
Denver, Colorado, United States
OnsiteFull Time
Apple
AppleNASDAQ: AAPL: Designs and sells consumer electronics, software, and online services.
Deep technical expertise in security and identity for cloud workloads, large-scale operations experience, and strong software engineering skills.
Golang
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1mo
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Senior Systems Software Security Engineer – Data Center Systems
Colorado or United States
$152k-$288k/yr RemoteFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs graphics processing units and artificial intelligence hardware.
5+ YOEBS/MS in Computer Engineering/Computer Science or equivalent experience; 5+ years software/firmware security engineering; strong security fundamentals; experience with threat modeling, CI/CD, incident response, code audit; Python and system programming; server architecture knowledge.
Python, OpenBMC, UEFI, TCG DICE, SPDM, PLDM, Redfish, NIST SP800-193, CNSA2.0, CI/CD, Linux
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3w
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Software Developer
Colorado Springs, Colorado, United States
$100k-$110k/yr OnsiteFull Time
IPT Associates
IPT Associates: Provides IT and professional services to federal government agencies.
10+ YOEBachelor's degree in CS/IS/Engineering,10 years experience, IAT-II, active security clearance required; experience designing and developing OS-level, embedded, compiler, or networking software.
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1mo
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Sr Full Stack Software Developer
Denver or Sterling
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEActive TS/SCI clearance with polygraph preferred, 5+ years software development, proficiency in Java and JavaScript, Linux experience, willingness to obtain Security+; Bachelor's in CS or accredited bootcamp required.
Java, JavaScript, Linux, Kubernetes, Elasticsearch, Java Spring Boot framework, AWS, WebSocket's, RESTful API
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1mo
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Sr Full Stack Software Developer
Denver or Sterling
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEActive TS/SCI clearance (polygraph preferred), 5+ years software development, proficiency in Java and JavaScript, Linux experience, bachelor's in CS or coding bootcamp, Security+ (or willingness), cloud and microservice experience.
Java, JavaScript, Linux, Kubernetes, Elasticsearch, Spring Boot, AWS, WebSocket, RESTful API
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1w
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Sr. Satellite Flight Software Engineer - TeraWave
Seattle or Denver
$182k-$277k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
10+ YOEBachelor's degree,10+ years embedded/flight software experience for spacecraft or mission-critical systems; proficiency in C/C++,Python,RTOS,EMBEDDED LINUX/VxWorks/QNX; experience with CI/CD, verification, and secure software practices.
C, C++, Python, Embedded Linux, VxWorks, QNX, TCP/IP, UDP, CAN, I2C, SPI, RS-422/485, core Flight System (cFS), F Prime, Software-in-the-loop (SIL), Hardware-in-the-loop (HIL), CI/CD
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2mo
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Senior Software Engineer
Littleton, Colorado, United States
$120k-$150k/yr OnsiteFull Time
OASYS
OASYS: Provides technology services and products for government and defense.
Full-time Senior Software Engineer with C/C++ experience; US citizen; security clearance required.
C, C++
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2mo
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Senior Software Engineer
Denver or Salem
$130k-$150k/yr OnsiteFull Time
AutoStore
AutoStoreOslo Stock Exchange: AUTO: Robotic cube storage systems for automated warehouse fulfillment.
5+ YOE5+ years in software development; Bachelor’s or Master’s in CS/Engineering; strong API, security, and data tooling experience.
Git, OpenAPI, OAuth, RabbitMQ, Apache Kafka, Azure Service Bus, Event Hubs, Azure Databricks, TypeScript, C#, F#, PostgreSQL
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2w
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Senior Software Engineer — PingOne Platform Administration & Security
United States or Denver
$110k-$138k/yr RemoteFull Time
Ping Identity
Ping Identity: Provides identity and access management software for enterprise security.
5+ YOE5+ years software engineering experience with backend services; Java and NodeJS experience; TypeScript and REST API familiarity; experience with SaaS, CI/CD, distributed systems, and mentoring peers.
Java, NodeJS, TypeScript, REST APIs, CI/CD, MCP
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2mo
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Principal Software Engineer
Denver, Colorado, United States
$225k-$270k/yr HybridFull Time
FusionAuth
FusionAuth: Provides authentication and user management software for developers.
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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1mo
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Sr. Software Test Engineer (Contingent)
Aurora, Colorado, United States
$87k-$165k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOEActive transferable TS/SCI clearance and U.S. citizenship, 5+ years relevant experience (or 3+ with advanced degree), experience with automated test frameworks, Agile/CI workflows, and validating functional/performance/security requirements.
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1w
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Embedded Software Engineer
Huntsville or McLean or El Segundo or Colorado Springs
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
7+ YOE7+ years software engineering with Rust,C,C++,or Python; experience with production full-stack apps,Kubernetes,CI/CD,DevSecOps,security best practices; Secret clearance; bachelor's in CS/Engineering or equivalent experience.
Rust, C, C++, Python, Kubernetes, CI/CD, PyO3, SonarQube, Clippy, cargo-deny, cargo-audit, GitHub, SysML, DoDAF, UAF
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1mo
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Senior Software Engineer
United States or California or Colorado or Hawaii or Illinois or Maryland or Minnesota or New Jersey or New York or New York City or Vermont or Washington or Washington
$150k-$180k/yr RemoteFull Time
Pearson
PearsonLondon Stock Exchange: PSON: Provide educational materials, assessments, and digital learning services globally.
5+ YOE5+ years software development experience; deep expertise in software architecture, system design, scalability, cloud-native design, security; proficiency with Ruby on Rails, React, AWS, and PostgreSQL; strong communication and mentoring skills.
Ruby on Rails, React, AWS, PostgreSQL
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6d
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Software Engineer III
Lone Tree or Englewood
$108k-$149k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
6+ YOEBachelor's in CS or related,6+ years software development,proficiency in C# or Java,experience with Linux/RHEL and Windows services,hardware integration experience,ability to obtain U.S. Secret security clearance.
C#, Java, Linux (RHEL), Windows services, C, C++, HTML, Python, Bash
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5d
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Senior Software Engineer, Radar
Broomfield or Fort Collins
$190k-$252k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOE5+ years software development experience; proficiency in C++; experience with Nix/NixOS, API design, reproducible builds, and software quality/security practices; Bachelor's in CS/CE or related.
C++, Python, Nix, NixOS, Lattice OS, gRPC, Protobuf, ZeroMQ, DDS, Docker, Linux
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