146 software system engineer jobs at 57 companies in Windsor, CO
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System Software Engineer II
Longmont, Colorado, United States
$90k-$120k/yr OnsiteFull Time
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
3d
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System Software Engineer, UEFI Firmware
Santa Clara or Boulder
$124k-$242k/yr OnsiteFull Time
2+ YOEBachelor's or master's degree in EE, CS, or CE; 2+ years in low-level operating systems and ARM programming; strong C programming and debugging skills; system software experience preferred.
UEFI, ACPI, SMBIOS, Linux kernel, C, ARM, FPGA, AI development tools, kernel modules, device drivers
3d
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System Software Engineer, UEFI Firmware
Santa Clara or Boulder
$124k-$242k/yr OnsiteFull Time
2+ YOERequires a BS or MS in EE, CS, or CE; 2+ years in low-level operating systems, ARM programming, and system software; strong C programming and debugging; UEFI experience preferred.
UEFI, ACPI, SMBIOS, Linux kernel, C, FPGA, AI development tools
1w
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Senior Software Engineer, watchOS System Spaces
Boulder, Colorado, United States
OnsiteFull Time
Design and implement systems for the always-running watchOS experience, including notifications and alerts; collaborate with cross-functional teams to deliver features at scale.
1mo
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Software Engineer III
Lone Tree or Sparks or Longmont or Hagerstown or Herndon or Englewood
$108k-$149k/yr HybridFull Time
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
4w
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Software Engineer - RFGL Systems
Washington or Boulder
$90k-$131k/yr HybridFull Time
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++
1mo
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Advanced Software Systems Engineer
Boulder, Colorado, United States
$119k-$128k/yr HybridFull Time
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
3mo
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Principal Software Engineer
Boulder or New York City
$200k-$240k/yr HybridFull Time
10+ YOE10+ years software engineering; 5+ years adtech infrastructure; backend focus; experience with AI tooling; distributed systems; OpenRTB knowledge.
Java, Kafka, Redpanda, AWS, Databricks, Datadog, ONYX
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Principal Software Engineer
Warsaw or Fridley or Mounds View or Brooklyn Park or Fort Worth or North Haven or Jacksonville or Boston or Lafayette
$153k-$229k/yr HybridFull Time
5+ YOEBachelor’s degree + 7+ years software engineering or advanced degree + 5+ years; experience designing and developing scalable systems for manufacturing operations; mentoring, requirements capture, database architecture, CI/CD, and cross-functional collaboration; ability to travel 25%.
Ignition, deviseWISE, Microsoft Azure, AWS, Docker, Kubernetes, Jenkins, Terraform, React, Angular, Node.js, ASP.NET, HTML5, CSS3, WebAPI, Microservices Architecture, CI/CD Pipelines, RESTful API Design, Java, C++, .NET, Scala, Lua, Python, SQL
2w
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Principal Software Engineer, Developer Platforms
Boulder, Colorado, United States
$220k-$297k/yr RemoteFull Time
8+ YOE8+ years software engineering experience, 3+ years in developer platforms/CI/CD or related, experience with automated testing, release pipelines, distributed systems, and a bachelor’s degree or equivalent.
1w
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Engineer I - Software
Boulder or Broomfield or Westminster
$65k-$110k/yr OnsiteFull Time
BS in engineering or related required; experience with satellite ground systems, ground-system tools, cloud, web services, and back-end/front-end languages; eligible for Top Secret/SCI clearance.
COSMOS, ECLIPSE, OS/COMET, OASIS, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Python, Qt, SQL, NoSQL, JPA/ORM, Java, C++, Rust, Ada
2w
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Associate Principal Software Engineer
Louisville or Covington
$159k-$254k/yr OnsiteFull Time
10+ YOE10+ years embedded/medical device software experience, BS/MS in related discipline, strong software architecture, cybersecurity, systems thinking, and cross-functional influence skills.
C, C++, RTOS, embedded Linux, Bluetooth, BLE, Wi-Fi, Ethernet, APIs, CI/CD, static analysis, simulator, hardware-in-the-loop, software-in-the-loop, IEC 62304
3mo
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Senior Software Engineer - Control Systems
Boulder or Austin
$150k-$175k/yr HybridFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
5+ YOEDesign and build high-performance control systems for quantum computing; embedded software, real-time, GPU/FPGA; in-office collaboration with theory/software/hardware teams.
C++, Python, Rust, Go, NVIDIA CUDA, FPGA design, VHDL, Verilog, Linux, CUDA Toolchains
3w
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Senior Spacecraft Systems Engineer – Software
Westminster, Colorado, United States
$134k-$161k/yr OnsiteFull Time
5+ YOEBachelor's degree in engineering, 5+ years systems/software/embedded experience, experience decomposing requirements and creating verification plans, embedded systems and interface experience.
Python, C++, C, Java, Bash, Git, IDEs, debuggers, CI/CD platforms, Linux, Windows, Unix, TCP/IP, UDP, Serial, USB, Ethernet, APIs, requirements tools, issue tracking systems, automated test tools
1mo
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Embedded Software Engineer
Boulder, Colorado, United States
$93k-$133k/yr HybridFull Time
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
4d
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ML Software Engineer III
Florence or Denver or Boulder
$145k-$175k/yr OnsiteFull Time
8+ YOE8+ years software engineering with hands-on ML systems, strong Python and ML framework experience, production ML deployment, CV fundamentals, edge deployment, ROS2 and Jetson experience.
Python, ROS2, Jetson/AGX, YOLO
1mo
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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
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
1mo
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Senior Cybersecurity Systems Software Engineer
Colorado Springs or Durham or Spring or Fort Collins or Andover
$162k-$371k/yr HybridFull Time
10+ YOEBachelor's or Master's in CS/Engineering/Information Systems; 10+ years in cybersecurity engineering, architecture, and software development; expertise in cybersecurity standards, solutions, and compliance; strong communication and leadership skills.
NIST SP 800-53, DISA SRG/STIG, Common Criteria, Post-Quantum Cryptography (PQC), EU Cyber Resilience Act (EU CRA), 802.1 ar Device Identities, cybersecurity Agentic AI, FIPS, TLS/SSH, Cryptography
1mo
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Senior Systems Software Engineer
Durham or Fort Collins or Colorado Springs or Houston or Andover
$121k-$277k/yr HybridFull Time
6+ YOEBachelor's in CS/CE/EE (Master's preferred), 6+ years developing system-level software, strong C/C++ and Python skills, OS and concurrency knowledge, storage/distributed systems experience, debugging and cross-layer troubleshooting, leadership and mentoring experience.
C, C++, Python
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Software Engineer, Ground Software
Broomfield, Colorado, United States
$120k-$165k/yr OnsiteFull Time
3+ YOE3–8 years building cloud-based scalable microservice systems, production service ownership, mission-critical reliability, strong backend/frontend fluency, AWS and modern tooling experience, BS in CS or related (MS preferred).
AWS Suite (EKS, MSK, Timestream, S3, Batch, Event Bridge), Python, C++, React, Tailwind, Redis, Kafka, influx, QuestDB, MongoDB, git, CI/CD, Docker, K8