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482 system software engineer jobs at 178 companies in Denver, CO

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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
Help us #BeatIndeed & #BeatLinkedIn
1w
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System Software Engineer II
Longmont, Colorado, United States
$90k-$120k/yr OnsiteFull Time
Autonomous Solutions
Autonomous Solutions: ASI develops autonomous vehicle systems and fleet management software.
3+ YOEBachelor's degree required. 3+ years production experience in compiled languages (Rust,C++,Go,Java,C). Experience with Linux (Ubuntu, Yocto), multithreaded systems, debugging complex software, and on-hardware verification.
Rust, C++, Python, Go, Java, C, Ubuntu, Yocto, CAN
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2mo
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Senior System Software Engineer - Performance
Santa Clara or Austin or Hillsboro or Boulder or Redmond or United States
$184k-$357k/yr HybridFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs GPU-accelerated computing and artificial intelligence hardware.
6+ YOEBS or MS in Computer Engineering or Computer Science; 6+ years in computer architecture or software development; leadership; strong OS, multicore, real-time, performance analysis experience.
ARM architecture, CUDA, performance analysis tools, Linux/Unix, embedded systems, OS concepts
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2mo
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Senior System Software Engineer - Performance
Santa Clara or Austin or Hillsboro or California or Boulder or Redmond
$184k-$357k/yr HybridFull Time
NVIDIA
NVIDIANASDAQ: NVDA: Designs graphics processing units and artificial intelligence hardware.
6+ YOEBS/MS in CS/CE or equivalent, 6+ years relevant experience, leadership and hands-on HW/SW experience, strong understanding of multicore hardware, OS design, concurrency, virtual memory, caching, interrupts, device drivers, real-time programming, and performance analysis/optimization.
CUDA
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2mo
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Ground System Engineer
Colorado Springs or Aurora
$99k-$225k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years in systems engineering for satellite/ground systems; experience with technical specifications, ICDs, architectures, integration plans; experience with software systems for weapon systems; DoD/space program knowledge; Top Secret clearance; travel up to 10%.
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2mo
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Ground System Engineer
Colorado Springs or Aurora
$99k-$225k/yr RemoteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years systems engineering for satellite/ground systems; experience with ICDs, ground architectures, integration and test plans; experience with software for weapon systems; top secret clearance; HS diploma with 15+ years or Bachelor's with 7+ years in space programs.
DevOps, DevSecOps, Model-Based Systems Engineering, MBSE, IEEE 15288
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2w
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Software Engineer
Fairfax or Austin or Melbourne or Denver
$82k-$172k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEU.S. citizen able to obtain DoD clearance, bachelor’s in STEM or equivalent, 5+ years software engineering experience, experience with distributed systems, CI/CD, DevSecOps, and AI-assisted development tools.
Claude Code, AI agents, CI/CD
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2w
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Software Engineer
Fairfax or Melbourne or Austin or Denver
$99k-$207k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEU.S. citizen able to obtain DoD clearance, Bachelor's in STEM (or equivalent), 5+ years software engineering, experience with distributed systems, CI/CD and DevSecOps, and use of AI-assisted tools like Claude Code.
Claude Code, AI agents, CI/CD
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1mo
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Senior Software Engineer
Denver, Colorado, United States
$104k-$164k/yr HybridFull Time
CONMED
CONMEDNYSE: CNMD: Manufacturer of surgical instruments and patient monitoring medical devices.
5+ YOEBS in CS/Software/Computer Engineering (or MS), 5–7+ years software development experience, 3+ years embedded systems experience, experience with safety-critical/regulatory software, strong communication and technical documentation skills.
C, C++
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3d
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System Development Engineer, AI/ML (Accelerator) Server
Seattle or Denver or Cupertino
$129k-$175k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
5+ YOE5+ years professional experience in software and systems engineering with networking, storage, OS, and driver debugging; proficiency in modern languages and Linux; experience designing scalable, reliable systems.
Python, Ruby, Java, C++, C, C#, Golang, PowerShell, CI/CD, Linux
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2w
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Software Engineer III
Lone Tree or Sparks or Longmont or Hagerstown or Herndon 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 degree in CS/Software Engineering or related,6+ years software development experience,proficiency in C++,Java,Python,experience with RTOS/embedded systems preferred,excellent communication and critical thinking.
C++, Java, Python, C, C#, HTML, Bash
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4w
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System Simulation Engineer
Littleton, Colorado, United States
$89k-$158k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEUS citizen with Secret (able to obtain Top Secret) clearance; experience in flight dynamics, physics-based/time-domain simulations, and programming in C++; familiarity with software configuration tools and verification/validation of simulations.
C++, Git, Artifactory, Nexus, UNIX, LINUX, STK, MBSE, Cameo, HWIL
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1mo
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Software Engineer I
Seattle or Denver or Beaverton or Springfield or Bengaluru
$122k-$157k/yr HybridFull Time
DAT Freight & Analytics
DAT Freight & Analytics: Software platform for freight matching and logistics data analytics.
1+ YOE1+ years professional software engineering experience. Familiarity with TypeScript/Node.js/JavaScript, SQL, production systems, CI/CD, containerization, and willingness to participate in on-call rotation.
Node.js, TypeScript, React, Kafka, RabbitMQ, SQS, Docker, Kubernetes, Terraform, CloudFormation, AWS, Datadog, OpenSearch/ELK, Prometheus, Grafana, CI/CD, SQL, Java, C#, Go, REST, GraphQL
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1w
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Software Engineer II
Denver, Colorado, United States
$88k-$171k/yr OnsiteFull Time
Walmart
WalmartNYSE: WMT: Multinational retail operating discount stores and supermarkets.
3+ YOEBachelor's degree or 3 years software engineering experience; familiarity with C#/.NET, cloud-deployed microservices, SQL and messaging systems; strong communication and critical thinking.
C# 12, .NET 8, ASP.NET Core, Microsoft SQL Server, Aurora PostgreSQL, Mongo, MassTransit, RabbitMQ, Swagger/OpenAPI, RestSharp, xUnit, Moq, AWS
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5d
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Lead Software Engineer
Chicago or Peoria or Westminster or Irving or Cary
$128k-$209k/yr OnsiteFull Time
Caterpillar
CaterpillarNYSE: CAT: Manufactures construction equipment, mining machinery, and industrial engines.
Hands-on software engineering lead with experience designing scalable cloud-native systems, proficiency in modern programming languages, and experience applying emerging technologies such as generative AI and RAG.
Python, Java, JavaScript, TypeScript, C#, Go, Kubernetes
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2w
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Software Engineer - RFGL Systems
Washington or Boulder
$90k-$131k/yr HybridFull Time
Spire Global
Spire GlobalNYSE: SPIR: Operates satellite constellations for global tracking and weather analytics.
2+ YOE2+ years software engineering experience, hands-on AWS (EC2,S3,Lambda,ECS/EKS,CloudWatch,IAM), Python, Linux/bash, production systems reliability and monitoring, strong communication and teamwork skills.
AWS EC2, S3, Lambda, ECS, EKS, CloudWatch, IAM, Python, Linux, bash, Spark, Kafka, Databricks, Terraform, Ansible, CloudFormation, Docker, Kubernetes, GitHub Actions, Prometheus, Grafana, ELK, C++
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2w
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Propulsion System Engineer/Software Engineer 2
Centennial or Cape Canaveral
$93k-$155k/yr OnsiteFull Time
United Launch Alliance
United Launch Alliance: Aerospace providing space launch services for satellites.
2+ YOEBachelor's in engineering,2+ years related experience,experience with fluid/cryogenic or pneumatic systems,requirements development,excellent communication,ability to interpret engineering drawings.
Java, Python, Linux
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1w
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Software Engineer III
Denver, Colorado, United States
$142k-$165k/yr OnsiteFull Time
Cleerly
Cleerly: Provides AI-driven solutions to analyze and prevent heart disease.
5+ YOE5–8 years software engineering experience, fullstack development, proficiency with React, Node.js, TypeScript, RESTful APIs and PostgreSQL; experience with cloud containers, CI/CD, and system design; Bachelor's/Master's or equivalent.
React, CSS, Node.js, TypeScript, RESTful APIs, PostgreSQL, Google Workspace (GMail, Drive, Docs, Sheets, Slides), Slack, Confluence, Jira, Zoom Video, Next.js, Ant, Docker, AWS EKS, CI/CD, Python
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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
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1mo
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Senior Software Engineer
Aurora, Colorado, United States
$106k-$180k/yr HybridFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
4+ YOE4+ years professional software engineering experience; expert Java and C++; experience with mission-critical or satellite ground systems; Bachelor's in a technical field; ability to obtain/maintain NOAA Public Trust/Secret clearance.
Java, C++, OS/COMET, General Mission Analysis Tool (GMAT), Python, Docker, Kubernetes, CI/CD
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2w
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Advanced Software Systems Engineer
Boulder, Colorado, United States
$119k-$128k/yr HybridFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
3+ YOEBachelor's in systems engineering (or related) with 5+ years or Master's with 3+ years, DoD Secret clearance required, U.S. citizenship, experience with systems-level software development, MBSE, cloud and DevOps tooling.
Model-Based Systems Engineering (MBSE), AWS, Azure, RHOSP, VIO, Kubernetes, Rancher, Docker, OpenShift, Ansible, Terraform, Terragrunt, Packer, STIG, RMF
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