Principal Electrical Power Subsystem Architect Blue OriginPrincipal Electrical Power Subsystem ArchitectLittleton, Coloradoand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs.
Principal Scientist, Adsorbent Chemistry Alta Resource TechnologiesPrincipal Scientist, Adsorbent ChemistryBoulder, ColoradoThis individual will work cross-functionally with applied biology, process engineering, analytical chemistry, and manufacturing teams to translate laboratory-scale innovations into robust, scalable manufacturing processes. Alta Resource Technologies (Alta) is a next generation mining company that uses synthetic biology to separate critical minerals from conventional and unconventional resources, including e-waste.
Principal Satellite Systems Engineer VantorPrincipal Satellite Systems EngineerWestminster, Colorado$135,000–$180,000 / yearVantor is hiring a Principal Satellite Systems Engineer to join our SpaceWRX team to execute space projects starting from customer needs to design, develop, and deliver the world’s most capable earth observation systems. Vantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world differently, and in doing so, be seen differently.
Associate Principal Mechanical Engineer McKinstry Co.Associate Principal Mechanical EngineerDenver, CO$130,320–$224,400 / yearThe role will be a key member of the leadership team representing the Engineering and Design department professionally by engaging deeply with customers to understand their long-term needs and plans and make a compelling case for selecting the McKinstry team. Employment is contingent upon successfully passing a pre-employment drug and alcohol test, complying with the requirements of the Immigration Reform and Control Act and a Confidentiality Agreement, in addition to successful outcomes of background and reference checks.
Principal Software Engineer- Embedded OS ALTEN TechnologyPrincipal Software Engineer- Embedded OSDenver, Colorado$125,000–$150,000 / yearWe’re ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. The actual salary offered is dependent on various factors including, but not limited to, location, the candidate’s combination of job-related knowledge, qualifications, skills, education, training, and experience.
Principal Software Engineer- Embedded OS ALTEN Technology USAPrincipal Software Engineer- Embedded OSDenver, CO$125,000–$150,000 / yearWe're ALTEN Technology USA, an engineering company helping clients bring groundbreaking ideas to life—from advancing space exploration and life-saving medical devices to building autonomous electric vehicles. The actual salary offered is dependent on various factors including, but not limited to, location, the candidate's combination of job-related knowledge, qualifications, skills, education, training, and experience.
Principal, Provider Data Management Capital Rx, Inc.Principal, Provider Data ManagementDenver, CO$144,800–$181,000 / yearThis position operates at a senior individual-contributor level: leading governance design, resolving complex data issues, strengthening claims-pricing defensibility, mentoring operational teams, and driving sustainable improvements across provider data intake, maintenance, quality, audit readiness, and downstream consumption. By delivering true price transparency, eliminating unnecessary middleman fees, and leveraging advanced AI-powered care delivery, Judi Health helps clients achieve unprecedented operational efficiency and service levels.
Principal Analyst, Analytics Capital Rx, Inc.Principal Analyst, AnalyticsDenver, CO$138,000–$180,000 / yearExperience with forecasting, trend evaluation, healthcare cost modeling, benchmarking, pricing, renewal strategy, repricing, disruption analysis, self-funded employer group analysis, episode groupers, risk adjustment models, utilization benchmarks, or provider/network performance analytics. The ideal candidate combines deep healthcare domain expertise with advanced analytical capabilities and experience supporting actuarial, healthcare economics, underwriting, risk management, value-based care, or strategic healthcare consulting initiatives.
NewPrincipal Clinical Scientist DanaherPrincipal Clinical ScientistDenver, CO$120,000–$165,000 / yearThe essential requirements of the job include: Bachelor's degree in Life Sciences, Healthcare, or a related field with 9+ years of experience in clinical research, specifically with significant experience in US and/or EU trials, or a Master's degree with 12+ years of experience or Doctoral degree with 4+ years of same experience. It would be a plus if you also possess previous experience in: Experience in study designs for diagnostic technologies (IVD) is highly preferred, specifically for Clinical Chemistry, Immunoassays, Hematology, Urinalysis, Flow Cytometry, and/or Biomarkers.
Principal Hydrogeologist ITASCA North AmericaPrincipal HydrogeologistDenver, CO$150,000–$200,000You will also play an important role in growing ITASCA North America's hydrogeology practice by building trusted client relationships, mentoring staff, guiding project teams, and connecting ITASCA's hydrogeology, geomechanics, engineering geology, and numerical modeling capabilities into stronger solutions for clients. Mining experience is preferred, particularly in mine water management, groundwater characterization, dewatering, depressurization, seepage, closure, water balance, permitting support, and hydrogeologic support for mine planning and operations.
Principal Geochemist ITASCA North AmericaPrincipal GeochemistDenver, CO$150,000–$200,000You will also help grow ITASCA North America's integrated consulting practice by building trusted client relationships, mentoring staff, guiding technical teams, and connecting geochemistry with our hydrogeology, geomechanics, engineering geology, and numerical modeling capabilities. Mining experience is strongly preferred, particularly in water quality modeling; geochemical characterization of mine waste, ore, and tailings; acid rock drainage; metal leaching; closure; and environmental support across the mine life cycle.
Principal Product Designer Chegg, Inc.Principal Product DesignerDenver, ColoradoWe need someone who operates at the intersection of product strategy, design craft, and AI-first delivery: a person who can determine which problems are worth solving, turn that into a plan the team can build, and bring it to life through design, rapid prototyping, and real user testing. Use a variety of techniques (one-on-one user interviews, rapid prototypes built with AI coding tools, and whatever else works) to validate and invalidate a wide breadth of ideas quickly and cheaply.
Principal Data Scientist (TS/SCI with Polygraph Required) DeNOVO SolutionsPrincipal Data Scientist (TS/SCI with Polygraph Required)Aurora, ColoradoClearance: TS/SCI with CI Polygraph Support Emerging Mission Needs and Help Shape DeNOVO’s Data Science Capability DeNOVO Solutions is seeking a Senior Data Scientist to help develop, refine, and strengthen our data science and mission-focused technical capabilities. The ideal candidate will be comfortable working across research, development, architecture, deployment, and stakeholder engagement while helping shape practical AI/ML solutions for emerging mission needs.
Principal Flight Software Engineer I CesiumAstroPrincipal Flight Software Engineer IWestminster, CO$142,000–$189,500 / yearPlease Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State. The ideal candidate will have development experience at nearly every level of the software stack, including microcontrollers, low-level drivers, board support packages (BSP), and user interfaces with an emphasis on applications and data management.
Principal Electrical Engineer I - Flatsat Lead CesiumAstroPrincipal Electrical Engineer I - Flatsat LeadWestminster, CO$150,980–$182,400 / yearPlease Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State. The FlatSat Lead will be responsible for technical direction, configuration control, infrastructure development, and cross-functional coordination to ensure the FlatSat enables rapid development, risk reduction, and mission success.
Principal Instructor - ArcGIS Enterprise EsriPrincipal Instructor - ArcGIS EnterpriseDenver, ColoradoDevelop and deliver training programs through various formats and methods including in-person, virtual and hybrid offerings, to enhance users' proficiency in ArcGIS software both domestically and internationally. The work you do will enable customers to grow their ArcGIS user skills, productivity, and confidence in addition to ensuring sustainable GIS workflows and operations.
Principal Software Engineer - Pay Group Engineering GustoPrincipal Software Engineer - Pay Group EngineeringDenver, CO$215,000–$252,000 / yearPay Group (payroll and tax) teams are responsible for the product, ops, and service components Gusto uses to onboard customers, process payrolls, calculate taxes and deductions, pay and file with tax agencies, and maintain compliance on behalf of the customers. As a Gusto Software Engineer at this level, you'll be guiding projects end-to-end by influencing initial feature specs, understanding how to take existing systems closer to desired end states, executing on projects, and maintaining code that powers core experiences.
Principal Data Architect Yantran LLCPrincipal Data ArchitectDenver, COReporting into the Customer Journey AI team, you will design the blueprints that allow autonomous, goal-oriented AI agents to execute complex, end-to-end workflows across all customer touchpoints including digital portals, the Spectrum TV App, conversational IVR, messaging, and retail/field operations. To implement Agentic AI workflows across all customer touchpoints at Charter Communications, an AI Architect would need to bridge the gap between cutting-edge LLM orchestration and massive legacy telecom architectures (like BSS/OSS, CRM, and billing systems).
NewPrincipal Embedded Software Engineer Saicon Consultants IncPrincipal Embedded Software EngineerDenver, COThis is a highly technical engineering role focused on embedded software development, real-time operating systems, avionics integration, hardware/software interaction, and safety-critical software environments. The engineer will collaborate with multidisciplinary teams supporting avionics systems, embedded platforms, hardware integration labs, and flight software environments.
Principal Mechanical Engineer (Solar Arrays) ProtingentPrincipal Mechanical Engineer (Solar Arrays)Westminster, CO$167,096–$229,757 / yearAbout Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies . Job Description: The Principal Mechanical Engineer role focuses on applying advanced technical principles, theories, and concepts to engineering projects, as well as contributing to the development of new principles and concepts.