37 principal designer jobs at 18 companies in Ault, CO
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Senior Principal Optical Lens Designer
Acton or Boulder or Centennial or San Diego
$188k-$336k/yr OnsiteFull Time
15+ YOEExpert-level optical design experience for space-based sensors; proficiency with CODE V/OSLO/Zemax; understanding of radiometry, diffraction, polarization, tolerancing, fabrication, testing, and STOP analysis; ability to mentor and communicate.
CODE V, OSLO, Zemax, FRED, TracePro, MATLAB, Structural-Thermal-Optical (STOP)
4w
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Principal Engineer - 2026-01939
Cheyenne, Wyoming, United States
$8k-$9k/mo OnsiteFull Time
2+ YOEBachelor's in engineering, PE license required (Wyoming PE within 1 year), 2+ years engineering experience, AutoCAD/Civil 3D design preferred, project and contract administration, statewide travel.
AutoCAD, Civil 3D
1w
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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
3mo
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Principal, RA Specialist
Boulder or Remote
$110k-$135k/yr RemoteFull Time
7+ YOEBachelor’s degree in a technical field; 7+ years in regulated environment; 4+ years global regulatory experience (IVD); US FDA/EU IVDR/510(k) knowledge; Design Control and Risk Management experience; ISO 13485 experience; strong collaboration and leadership.
1w
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Principal Hardware Engineer: High Speed Mixed Signal Designer
Boulder or Boulder
$180k-$220k/yr HybridFull Time
Atom Computing: Building scalable quantum computers using arrays of neutral atoms.
10+ YOEBS/MS in engineering and 10+ years of board-level analog and digital design experience, including mixed-signal systems, PCB design, high-speed interfaces, test equipment, and hardware automation scripting.
Altium Designer, FPGA, Python, Linux, MicroTCA, PXIe, IBIS-AMI, oscilloscopes, spectrum analyzers, logic analyzers, signal generators
1mo
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Principal Cloud Developer
Andover or Houston or Durham or Fort Collins or Roseville
$152k-$349k/yr HybridFull Time
10+ YOEBachelor's degree in CS/engineering/IS,10+ years experience,proficiency in Python/Java/Golang/JavaScript,cloud security and systems design expertise,strong communication and mentoring skills.
Python, Java, Golang, JavaScript
1mo
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Principal Cloud Developer
Andover or Houston or Durham or Fort Collins or Roseville
$152k-$349k/yr HybridFull Time
10+ YOEBachelor's degree in CS/engineering,10+ years experience,expertise in software design,programming (Python,Java,Golang,JavaScript),cloud security and architecture,mentoring and technical leadership.
Python, Java, Golang, JavaScript
1mo
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Principal Cloud Developer
Andover or Houston or Durham or Fort Collins or Roseville
$152k-$349k/yr HybridFull Time
10+ YOEBachelor's in CS/engineering/IS (or related),typically 10+ years experience, strong programming in Python/Java/Golang/JavaScript, cloud security and systems design expertise, leadership and mentoring experience.
Python, Java, Golang, JavaScript
2w
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Senior Principal Mechanical Engineer
Westminster or Boulder or Broomfield
$133k-$226k/yr OnsiteFull Time
8+ YOEBachelor's degree or higher in engineering or a related technical field and 8+ years of related experience; optomechanical design, CAD, GD&T, drawing generation, and design for manufacturability and assembly experience required.
SolidWorks, 3D CAD, GD&T, CAD, STOP
2mo
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Principal Mechanical Engineer
Louisville, Colorado, United States
$167k-$230k/yr OnsiteFull Time
12+ YOEBachelor's (or equivalent) and typically 12+ years' mechanical engineering experience, expertise in mechanical engineering principles, ability to obtain and maintain a U.S. security clearance, and experience leading design, analysis, integration, and test efforts.
NX, SolidWorks, ANSYS
1mo
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Principal Systems Engineer
Broomfield, Colorado, United States
$140k-$205k/yr OnsiteFull Time
12+ YOEBachelor's in engineering, 12+ years designing complex aerospace/robotics/autonomous systems; experience with system architecture, requirements management, integration, verification/validation; strong technical communication; able to work extended hours and weekends.
model-based systems engineering (MBSE)
1mo
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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
1mo
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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
3d
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Principal Quality Engineer
Boulder or Parker or Louisville
$121k-$181k/yr OnsiteFull Time
7+ YOEBaccalaureate degree plus 7 years, master's plus 5 years, or PhD plus 3 years of relevant experience. Medical device quality systems, design controls, risk management, CAPA, regulatory compliance, and cross-functional leadership experience preferred.
ISO 13485, FDA QSR, IEC 62304, Six Sigma, Lean
2mo
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Principal SSD Systems Design Engineer
Longmont, Colorado, United States
$175k-$297k/yr OnsiteFull Time
Bachelor's in EE/CE/CS or equivalent; deep SSD architecture expertise (controller, FTL, wear-leveling, NAND); PCIe/NVMe knowledge; system-level design, debug, characterization; lab instrumentation; programming in Python, C++, Bash.
Python, C++, Bash, PCIe, NVMe, SSD ASICs, FTL, NAND
2mo
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Principal SSD Systems Design Engineer
Longmont, Colorado, United States
$175k-$297k/yr OnsiteFull Time
Bachelor's in EE/CompEng/CS or equivalent; deep SSD architecture expertise (controller, FTL, wear-leveling, NAND lifecycle); PCIe/NVMe knowledge; system-level design, debug, and characterization; lab instrumentation and board-level debug.
PCIe, NVMe, Python, C++, Bash
1mo
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Principal Scientist, Adsorbent Chemistry
Boulder, Colorado, United States
$125k-$150k/yr OnsiteFull Time
5+ YOEPh.D. (5+ years) or M.S. (8+ years) in chemistry/materials/chemical engineering, expertise in resin activation and functionalization, process development and scale-up, experimental design, cross-functional collaboration; U.S. citizenship required.
DOE, statistical process control, process modeling tools
2d
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Senior Principal, Software Engineering
Boulder or Providence or Phoenix or Rhode Island or Colorado or Arizona or Connecticut or Florida or Massachusetts or Maryland or Maine or Missouri or North Carolina or New Hampshire or New Jersey or Nevada or New York or Oregon or Pennsylvania or South Carolina or Tennessee or Utah
$145k-$190k/yr RemoteFull Time
10+ YOE10+ years designing production software; expert C#, .NET, ASP.NET Core, Azure, distributed systems, CI/CD, infrastructure as code, AI-assisted and agentic development; client-facing leadership; BA/BS or equivalent experience.
C#, .NET, ASP.NET Core, Microsoft Azure, Azure App Service, Azure Functions, Azure Container Apps, Azure Kubernetes Service (AKS), API Management, Service Bus, Event Grid, Azure SQL, Cosmos DB, Microsoft Entra ID, OAuth 2.0, OpenID Connect, Azure DevOps, GitHub Actions, Bicep, Terraform, REST APIs, Docker, Kubernetes, SQL Server, Entity Framework Core, Azure Key Vault, Azure Monitor, Azure OpenAI, LLMs, RAG
3mo
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Principal Integration and Test Engineer
Boulder, Colorado, United States
$160k-$180k/yr OnsiteFull Time
3+ YOEDesign, develop, and execute CI/CD tests; verify system functionality; collaborate in Agile team; DoD Secret clearance.
Jira, Confluence, GitLab CI/CD, Docker, APIs
3mo
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Engineer Senior Principal - Spacecraft Mechanical Design Lead
Boulder, Colorado, United States
$133k-$226k/yr OnsiteFull Time
8+ YOEBS in engineering +8 years experience (Master's/PhD may substitute), spacecraft/structure/mechanism design experience, CAD/SolidWorks proficiency, design analysis and technical leadership, proposal experience, US person able to obtain Top Secret/SCI.
CAD, SolidWorks
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