40 sr principal software engineer jobs at 20 companies in Windsor, CO
1mo
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Principal / Sr Principal Algorithms Software Engineer
Boulder, Colorado, United States
$155k-$180k/yr OnsiteFull Time
5+ YOEActive in-scope U.S. Government Secret clearance required, ability to obtain TS/SCI, 5+ years relevant experience for principal roles (8+ for Sr Principal), Python and C++ development, Linux and command-line utilities, algorithm and state estimation experience, strong statistics and analysis skills, willingness to travel up to 10%.
Python, C++, Linux, grep, awk, cat, head
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
1w
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Sr. Principal Software Engineer
Louisville or Centennial
OnsiteFull Time
15+ YOEBachelor's degree or equivalent experience, 15+ years of related experience, advanced software architecture expertise, leadership skills, Agile/Scrum experience, and ability to obtain and maintain a Secret U.S. security clearance.
Git, Python, C++, Bash, PowerShell, Perl, Ansible, Puppet, Chef, Terraform, JIRA, Confluence, Jenkins, GitHub, GitLab, Bitbucket, MySQL, PostgreSQL, MongoDB, AWS, Azure, Google Cloud, Docker, Kubernetes, SysML, UML
4d
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Engineer Principal – Embedded Software
Boulder or Westminster or Broomfield
$118k-$201k/yr OnsiteFull Time
6+ YOEBachelor’s degree in engineering or related technical field plus 6+ years’ experience, or equivalent. Requires TS/SCI eligibility, embedded software expertise, and experience with C/C++, Rust, Python, Linux, testing, and software lifecycle practices.
CI/CD, C/C++, Rust, Python, Ruby, Embedded Linux, MQTT, ZeroMQ, PetaLinux, Yocto, UML, Protobuf, FlatBuffers, MATLAB, Cameo, PlantUML, DevSecOps, OpenEmbedded, gtest, ctest, Scrum, Agile
1mo
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Senior Principal Engineer – Embedded Software
Broomfield or Westminster or Boulder
$133k-$226k/yr OnsiteFull Time
8+ YOEBS in engineering or related field + 8+ years experience; U.S. person required and must be willing/eligible to obtain Top Secret/SCI; experience with embedded Linux, C/C++, Rust, Python, CI/CD, and embedded software lifecycle.
CI/CD, Containerization, C/C++, Rust, Python, Ruby, Embedded Linux, FPGAs, MQTT, ZeroMQ, PetaLinux, Yocto, Device tree, UML, Protobuf, FlatBuffers, MATLAB, Cameo, PlantUML, DevSecOps, Yocto Project, OpenEmbedded, gtest, ctest, hardware-in-the-loop
3w
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Sr. Principal Software Engineer - Boulder, CO
Boulder, Colorado, United States
$149k-$167k/yr OnsiteFull Time
9+ YOEExperience in Linux and software development with Python and C/C++; strong algorithm, state estimation, and data analysis skills; ability to obtain TS/SCI; willingness to travel up to 10%.
Python, C++, C, Java, Linux, grep, awk, cat, head, Git, Conan, CMake, Nexus, Bash, Jira, Confluence, Bitbucket, Atlassian Tool Suite
1mo
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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
2mo
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Principal Software Engineer
Boulder or Austin
$180k-$220k/yr OnsiteFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
10+ YOE10+ years engineering experience, Bachelor's in CS/CE, proven architecture leadership, proficiency with Python and SQL, Linux experience, familiarity with Git and automated testing, and willingness to learn atomic/optical/quantum concepts.
Python, Rust, TypeScript, React, SQL, Linux, Git, Terraform, Azure, AWS, GCP
3mo
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Principal Software Engineer - Media Ads Service
Nashville or Austin or Broomfield or United States
$100k-$223k/yr OnsiteFull Time
8+ YOE8+ years in distributed systems or video streaming; experience with advertising systems; strong Java/Go/C++; networking; high-scale, low-latency systems; BS or MS in CS or related field.
Java, Go, C++, Networking protocols, Distributed systems, Video streaming
1w
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Principal Engineer - Software Systems
Westminster, Colorado, United States
$150k-$220k/yr OnsiteFull Time
Bachelor's degree or equivalent experience, significant large-scale software systems architecture experience, distributed systems expertise, and demonstrated cross-functional technical leadership.
Kubernetes
1w
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Principal Software Engineer- Embedded OS
Denver or Westminster
$125k-$150k/yr OnsiteFull Time
3+ YOERequires a bachelor's degree and 7+ years, master's degree and 5+ years, or PhD and 3+ years of software development experience; strong Yocto, embedded Linux, Xilinx SoC, CI/CD, BSP, debugging, and Agile skills.
Yocto, Embedded Linux, Docker, Artifactory, Python, Bash, GNU Make, Bitbucket, Jira, Bamboo, Confluence, GitHub, GitLab, AMD Zynq, Zynq UltraScale+, Kria SOM, CI/CD, BSP, Scrum
6d
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Senior or Principal Software Development Engineer - Agent Factory
Boulder or Toronto or Vancouver
$156k-$264k/yr HybridFull Time
8+ YOESenior role requires 8+ years or principal role 12+ years in software development. Requires cloud SaaS, distributed systems, DevOps, CI/CD, testing, observability, Docker, Kubernetes, communication, and a bachelor's degree or equivalent.
AWS, DevOps, CI/CD, Docker, Kubernetes, Elasticsearch, Java, TypeScript
1mo
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Senior Principal Algorithms Software Engineer
Boulder, Colorado, United States
$132k-$198k/yr OnsiteFull Time
5+ YOEActive U.S. Secret clearance required; experience with Python and/or C++, Linux, algorithm design and state estimation, statistical analysis, and 5+ years software/algorithm development experience preferred.
Python, C++, Linux, grep, awk, cat, head
2mo
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Principal Flight Software Architect
Louisville, Colorado, United States
$153k-$265k/yr HybridFull Time
16+ YOEBachelor’s degree or higher in engineering/computation plus extensive experience (16-18y with BS, 14+ with MS, or 10+ with PhD) in software engineering for space/aerospace; embedded systems, RTOS, C/C++, architecture leadership.
2w
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Principal Engineer – Software Development
Boulder, Colorado, United States
$75k-$232k/yr OnsiteFull Time
10+ YOEBachelor's degree with 10+ years or master's degree with 7–8 years of relevant experience; proficiency in C, C#, Python, SQL; test instrumentation, circuits, signal analysis, and U.S. export eligibility required.
C#, C, Python, SQL, LabVIEW
1w
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Principal BIOS Embedded Software Engineer
Spring or Fort Collins or Chippewa Falls
$152k-$349k/yr OnsiteFull Time
15+ YOEBachelor's or master's degree in a computing field, 15+ years of embedded software experience, 10+ years of BIOS development, and expertise in C, C++, UEFI, Linux, and firmware debugging.
C, C++, UEFI, Linux, ACPI, SMBIOS, IPMI, Redfish
1w
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Principal BIOS Embedded Software Engineer
Spring or Fort Collins or Chippewa Falls
$152k-$349k/yr OnsiteFull Time
15+ YOEBachelor's or master's degree in a relevant computing field; 15+ years embedded software and 10+ years BIOS development experience; expertise in C, C++, BIOS, UEFI, Linux, and firmware debugging.
C, C++, BIOS, UEFI, Linux, ACPI, SMBIOS, IPMI, Redfish
2mo
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Principal Automation Software Test Engineer: SDET
Lafayette, Colorado, United States
$122k-$184k/yr OnsiteFull Time
7+ YOEBachelors in Computer Science/Engineering, 7+ years in software QA/test automation, 5+ years in medical device or regulated industries, scripting and programming (Python, Bash, JavaScript, Perl, C/C++), Linux, UML, test automation frameworks, Cypress/Jest/Supertest/React, RabbitMQ/REST, FDA QSR and IEC 62304 knowledge, leadership and mentoring expe...
Python, Bash, JavaScript, Perl, C/C++, Linux, UML, Cypress, Jest, Supertest, React, RabbitMQ, REST, Agile, Test-driven development
4w
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Principal GNC Engineer
Broomfield, Colorado, United States
$180k-$280k/yr OnsiteFull Time
5+ YOEBachelor's in engineering,5+ years GNC experience,software development in Python,experience with GNC sensors/algorithms,ability to lead projects,able to work extended hours and weekends.
Python, Git, Linux, Basilisk, C, C++
2mo
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Principal Automation Software Test Engineer: SDET
Lafayette, Colorado, United States
$122k-$184k/yr OnsiteFull Time
7+ YOEBachelors in Computer Science or Engineering, 7+ years in software QA/test automation/test lead roles, 5+ years in regulated/medical device industries, test automation and scripting (Python, bash, JavaScript, Perl), C/C++, Linux OS, GUI/backend/reliability/performance testing, regulatory compliance (FDA QSR, IEC 62304), leadership and mentoring ski...
Python, bash, JavaScript, Perl, C/C++, Linux OS, UML, Cypress, Jest, Supertest, React, Rabbit MQ, Rest