148 principal engineer jobs at 36 companies in Granby, CO
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Principal Engineer, Firmware
Longmont, Colorado, United States
$161k-$275k/yr OnsiteFull Time
7+ YOELead firmware architecture for SSDs; 7+ years embedded firmware; C/C++, Python; ASIC/FPGA bring-up; strong communication.
C, C++, Python
3w
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Principal Systems Engineer
Centennial or Louisville
$174k-$239k/yr OnsiteFull Time
15+ YOEBachelor's in related field, typically 15+ years' systems engineering experience, active Secret U.S. security clearance, expertise in requirements, architecture, integration, V&V, and mentoring.
DOORS, CAMEO EA, Rhapsody, Matlab, SysML, Open Mission Systems (OMS), Universal Command and Control Interface (UCI), CCSDS, DTN, TSPI
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Manufacturing Principal Engineer – Optical
Boulder, Colorado, United States
$118k-$201k/yr OnsiteFull Time
6+ YOEBachelor's degree in engineering or related technical field plus 6 years of experience, or equivalent. Requires optical coating and thin film design experience, and eligibility for TS/SCI clearance.
Microsoft Office
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Principal Project Engineer
Boulder, Colorado, United States
$135k-$168k/yr OnsiteFull Time
10+ YOELeads capital projects in pharma, manages cost, scope and schedule, and coordinates multi-disciplinary teams.
2d
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Principal Engineer, Firmware & Product Test
Longmont or San Jose
$145k-$286k/yr OnsiteFull Time
10+ YOERequires a bachelor's degree with 10+ years, master's with 8+ years, or PhD with 6+ years; expert Python, NVMe validation, automation frameworks, failure analysis, and test architecture expertise.
Python, CI/CD, NVMe, SMART, Admin Commands, Namespace Management, OCP, PCIe, Rust, C, Linux, Windows, Git, Claude Code, AI/ML, FPGA
2mo
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Principal Mission Assurance Engineer
Westminster, Colorado, United States
$136k-$167k/yr OnsiteFull Time
8+ YOEBachelor's in engineering; 8+ years aerospace/DoD; mission assurance expertise; AS9100 experience preferred; strong communication and collaboration skills.
6d
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Engineer Principal – Systems – Space Vehicle
Boulder, Colorado, United States
$118k-$201k/yr OnsiteFull Time
6+ YOEBS or higher in engineering or a related technical field and 6+ years of related experience. Requires technical team leadership, space hardware program experience, communication skills, Microsoft Office proficiency, and U.S. citizenship.
Microsoft Office, Earned Value Management (EVM), Model-Based Systems Engineering
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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
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Engineer Senior Principal II - Launch Systems - $10K Sign-On Bonus
Broomfield or Boulder
$150k-$254k/yr OnsiteFull Time
10+ YOEBS in engineering plus 10+ years experience (or advanced degree substitution), ability to obtain/maintain Top Secret/SCI polygraph, launch and mission systems integration experience, technical leadership, MBSE/JIRA/Linux familiarity.
MBSE, Linux, JIRA, EVM, CAM
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Senior Principal Engineer – Ground/Application Software
Broomfield or Westminster or Boulder or Colorado or United States
$133k-$226k/yr OnsiteFull Time
8+ YOEBS in engineering +8 years (or higher degree substitution), active Top Secret/SCI, experience in embedded/satellite software, CI/CD, containerization, cloud (AWS), C/C++, Python, UML, and formal software practices.
CI/CD, Containerization, C/C++, Rust, Python, Ruby, AWS, Lambda, Docker, Kubernetes, Spring, Jersey, Flask, CherryPy, Ruby on Rails, JavaScript, Angular, React, JavaFX, Qt, SQL, NoSQL, JPA/ORM, UML, Cameo, PlantUML, MATLAB, gtest, ctest, MQTT, AMQP, Kafka, Nginx, Apache, Postgres, DevSecOps
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Principal RF Engineer
Golden, Colorado, United States
$177k-$205k/yr OnsiteFull Time
12+ YOE12+ years RF engineering experience, BS in electrical engineering required, strong RF design/test skills, hands-on with RF test equipment, experience with Ka/S/X/S‑band systems, U.S. Person required.
Ansys HFSS, Ansys EMIT, STK, Python, spectrum analyzer, network analyzer, signal generator, power meter
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Principal Systems Engineer
Longmont, Colorado, United States
$101k-$178k/yr OnsiteFull Time
12+ YOEBachelor's in optics/physics/applied physics/electrical engineering (required) with 12+ years related experience (alternatively 10+ with MS or 7+ with PhD). Systems engineering for directed energy/optical gimbals, modeling/simulation, controls, integration, and verification experience required; familiarity with MBSE, MATLAB/Simulink, CAD, and FEA p...
CAD, FEA, MATLAB, Simulink, Model-Based Systems Engineering (MBSE)
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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++
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Principal Optical Engineer
Boulder, Colorado, United States
$160k-$185k/yr OnsiteFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
10+ YOE10+ years optical design experience, 7+ years hands-on optics assembly, Bachelors in optical sciences/engineering required; proficiency with Zemax, FRED, Onshape/Solidworks; leadership and mentoring experience.
Zemax, FRED, Onshape, Solidworks
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Principal Firmware Engineer
Broomfield, Colorado, United States
$135k-$155k/yr OnsiteFull Time
8+ YOEBachelor of Science in Engineering and 8+ years experience in embedded firmware; fluency in C/C++ and assembly; experience with embedded architecture, emulators, oscilloscopes, and hardware debugging; EtherCat, Python, FreeRTOS, STM32 preferred.
C, C++, Assembly, emulators, oscilloscopes, EtherCat, Python, FreeRTOS, STM32
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Principal Cloud Engineer
Broomfield, Colorado, United States
$150k-$165k/yr HybridFull Time
7+ YOE7+ years cloud engineering with IaC in public cloud, deep AWS expertise, Terraform/Ansible, CI/CD, observability, FedRAMP/NIST 800-53 compliance experience, BA/BS or equivalent.
AWS, GCP, Azure, Terraform, Ansible, Git, Artifactory, Jenkins, Packer, OTEL, Coralogix, Grafana, CloudWatch, CloudTrail, GuardDuty, EC2, S3, RDS, Lambda, IAM, VPC, ALB/NLB, CloudFront, Config, Splunk, ELK Stack, CloudFormation, TeamCity, Stacklet, OPA, Sentinel, Cloud Custodian
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Principal Electrical Engineer
Denver or Louisville or Santa Monica
$200k-$250k/yr OnsiteFull Time
12+ YOE5+ MgmtBachelor's in electrical engineering, 12+ years developing complex electrical systems (5+ years leading architecture), experience with MIL-STD design, lab test equipment, and ability to obtain DoD Secret clearance; strong leadership and communication.
Altium, FPGAs, SoCs, DDR3, DDR4, PCIe 3.0, PCIe 4.0, DisplayPort, USB 3.0, Ethernet, MIL-STD-461, MIL-STD-810, MIL-STD-1553, ARINC 429, CAN, oscilloscopes, power supplies, spectrum analyzers, ISO/IEEE 15288
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Principal AI Engineer
Atlanta or Toronto or Vancouver or Boulder
$217k-$325k/yr HybridFull Time
7+ YOE10+ years software engineering or 7+ years ML/AI experience with multi-year track record shipping LLM-backed products; experience integrating LLMs, designing AI orchestration, cloud deployment, and responsible AI governance.
AWS, GCP
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Principal RF Engineer
Boulder, Colorado, United States
$160k-$210k/yr HybridFull Time
U.S. citizen able to obtain security clearance; bachelor's in electrical engineering; extensive RF/microwave and antenna experience; HFSS/FEKO/CST/Microwave Office, MATLAB or Python proficiency; RF lab equipment experience; technical leadership and mentoring.
HFSS, FEKO, CST Studio Suite, Microwave Office, MATLAB, Python, Altium Designer
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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
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