LEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, CO Southwest Research Institute - FulltimeLEAD ENGINEER - PRINCIPAL ENGINEER - Laser Development Engineer - Boulder, COBoulder, CO$117,894 / yearFull timeThis includes operating, maintaining, and aligning high power lasers including diode fiber lasers, YAG lasers, OPO lasers, TiS lasers, fs-lasers, and optical/laser design. 7+ years: Laser operation and engineering for one or more of the following: diode lasers, external cavity lasers, laser optical systems and components, laser spectrometers, laser diffraction and vis/NIR detectors.
NewTransmission Planning Engineer, Senior or Principal Xcel EnergyTransmission Planning Engineer, Senior or PrincipalDenver, CO$97,000–$156,600 / yearnAs a leading combination electricity and natural gas energy company, Xcel Energy offers a comprehensive portfolio of energy-related products and services to 3.4 million electricity and 1.9 million natural gas customers across eight Western and Midwestern states. Transmission planning engineer: Develops scopes for studies to guide long-range transmission system plans and coordinates with other Integrated System Planning departments to ensure assumptions align across subdisciplines.
Senior Engineer (Engineer III) / Principal Engineer (Engineer IV) – Propulsion Quantum SpaceSenior Engineer (Engineer III) / Principal Engineer (Engineer IV) – PropulsionDenver, MarylandWe are seeking an experienced Senior Engineer III / Principal Engineer IV – Propulsion Systems to lead the development of advanced flight-qualified spacecraft propulsion systems supporting next-generation Ranger missions. This position is ideal for an engineer who thrives in a fast-paced environment, enjoys solving complex technical challenges, and is passionate about delivering flight-ready hardware for demanding national security, civil, and commercial space missions.
Principal Electrical Engineer Red 6Principal Electrical EngineerLouisville, Colorado$200,000–$250,000 / yearWorking knowledge of aircraft communication protocols including Ethernet, MIL-STD-1553, ARINC 429, CAN, or similar deterministic communication architectures. Responsible for architecting, designing, developing, modifying, evaluating, and integrating electronic equipment, electronic parts, components, and integrated circuitry for high performance and real time hardware systems.
Principal Electrical Engineer I - Phased Array Unit Lead CesiumAstroPrincipal Electrical Engineer I - Phased Array Unit LeadWestminster, CO$150,000–$182,000 / 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. CesiumAstro AESAs are state-of-the-art electronics assemblies consisting of an antenna element array, RF electronics, digital array control, and power conversion - engineered into a single box using a modular but optimized approach.
Principal Electrical Engineer I - RPU Unit Lead CesiumAstroPrincipal Electrical Engineer I - RPU Unit LeadWestminster, CO$150,000–$182,000 / 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. CesiumAstro RPUs are complex, VPX-based electronics boxes consisting of our software-defined radios, single-board computers, power supply modules, and RF front ends, driven by CesiumAstro modems and software.
Transmission Planning and Advanced Studies Engineer (Entry, Staff, Senior or Principal) Xcel Energy IncTransmission Planning and Advanced Studies Engineer (Entry, Staff, Senior or Principal)Denver, CO$70,000–$156,600 / yearCurrent initiatives include DOE-funded and DOE-supported grid modernization efforts, advanced transmission technology deployments, interregional transmission development, HVDC modernization studies, Grid Enhancing Technologies (GETs), Flexible AC Transmission Systems (FACTS), and system-wide transmission expansion planning. This is an exceptional opportunity for professionals who want to solve technically complex problems, contribute to industry-leading work, gain visibility across the utility sector, and help define how the grid evolves to meet future reliability, decarbonization, electrification, and large-load growth challenges.
Principal Electrical Engineer I - CDH CesiumAstroPrincipal Electrical Engineer I - CDHWestminster, 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. Your responsibilities will include serial communications and Ethernet networking, EMI mitigation, wiring, and electrical and data interfaces between all spacecraft subsystems.
Principal Electrical Engineer Crusoe EnergyPrincipal Electrical EngineerArvada, CO$225,000–$255,000 / yearWe're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved - people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. Leadership & Mentorship: Provide expert mentorship to Staff and Senior Electrical Engineers, elevating the team's technical capabilities and fostering future leaders.
Substation Physical - Principal Engineer ANSSubstation Physical - Principal EngineerDenver, ColoradoKey Responsibilities: Strategic Leadership: The successful candidate will provide strong leadership, overseeing team management, staffing, planning, training, and resource development to ensure the successful execution of projects. Under the direction of experienced engineers and in collaboration with a team, you will gain exposure to the Renewables industry in Solar and Battery Energy Storage projects and Utility Interconnections.
Capital Projects Engineer - Base (Staff, Senior, or Principal) Xcel EnergyCapital Projects Engineer - Base (Staff, Senior, or Principal)Denver, ColoradoAs a leading combination electricity and natural gas energy company, Xcel Energy offers a comprehensive portfolio of energy-related products and services to 3.4 million electricity and 1.9 million natural gas customers across eight Western and Midwestern states. Without appreciable direction exercises considerable latitude in determining ongoing technical support for project activities within areas such as Operations, Maintenance, Testing/diagnostics and Regulatory.
Principal Electrical Engineer CrusoePrincipal Electrical EngineerArvada, ColoradoWe're looking for problem-solving, opportunity-finding teammates with a sense of urgency, who believe in the scale of our ambition and thrive on a path not fully paved — people who want to grow their careers alongside a team of experts across energy, manufacturing, data center construction, and cloud services. Leadership & Mentorship: Provide expert mentorship to Staff and Senior Electrical Engineers, elevating the team's technical capabilities and fostering future leaders.
Principal RF Engineer I CesiumAstroPrincipal RF 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. As a principal hardware team member, you will be responsible for RF system and hardware designs from initial concept through requirements definition, architecture definition, part selection, detailed design, analysis, manufacturing, testing, qualification, and in-orbit support of Cesium's products.
Principal Electrical Engineer - Denver, CO CONMED CorporationPrincipal Electrical Engineer - Denver, CODenver, Colorado$130,000–$209,000 / yearThe Principal Electrical Engineer will shape advanced technologies, influence architecture and design decisions, and provide technical leadership across teams while mentoring engineers and driving disciplined execution throughout the product lifecycle. This role requires a highly experienced technical leader who thrives in complex, multidisciplinary environments and is motivated by solving challenging, system‑level problems.
Principal Engineer KORE1 TechnologiesPrincipal EngineerDenver, CORemote$220,000–$250,000 / yearNow, the organization is evolving toward intelligent automation and agentic AI systems: autonomous, tool-using services capable of reasoning over platform state, interacting with production systems, executing workflows, and learning from outcomes within established guardrails. Our backend infrastructure - built on event-driven, serverless AWS architecture - powers critical operational workflows, real-time transaction processing, integrations, and customer lifecycle management at scale.
NewPrincipal Electrical Engineer, Global Vantage Data CentersPrincipal Electrical Engineer, GlobalDenver, ColoradoDeveloping and operating across North America, EMEA and Asia Pacific, Vantage has evolved data center design in innovative ways to deliver dramatic gains in reliability, efficiency and sustainability in flexible environments that can scale as quickly as the market demands. You will also own the mechanisms that connect design intent to project delivery across this discipline — including design governance, cross-discipline decision-making, readiness for handover, and the feedback loops that ensure field, commissioning and operational experience strengthens the next version of the platform.
Principal Electronics Engineer II - Satcom CesiumAstroPrincipal Electronics Engineer II - SatcomWestminster, CO$158,000–$220,000 / 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 Skylark product line is focused on the rapid design, build, and test of cutting-edge active phased array antennas (AESA) for terrestrial and airborne applications.
Principal Engineer, Linux and Virtualization Infrastructure Wideopenwest NetworksPrincipal Engineer, Linux and Virtualization InfrastructureDenver, ColoradoRemoteThis is a highly visible engineering role within our enterprise infrastructure organization, supporting multiple datacenters and environments while driving the design, architecture, implementation, and optimization of modern infrastructure solutions. You’ll play a key role in both greenfield deployments and the evolution of existing production environments, helping ensure our platforms remain scalable, resilient, secure, and future-ready.
Principal Mechanical Engineer Aspen Technical Staffing, IncPrincipal Mechanical EngineerEnglewood, COThe ideal candidate brings deep technical expertise, leadership capability, and the ability to collaborate across multiple engineering disciplines to ensure successful project execution. We are seeking a highly experienced Principal Mechanical Engineer to serve as a senior technical leader on complex EPC (Engineering, Procurement, and Construction) projects.
Principal Electrical Engineer, Radio Frequency (Rf) True AnomalyPrincipal Electrical Engineer, Radio Frequency (Rf)Denver, CO$175,000–$265,000 / yearYou will shape the long-term technical direction of the RF discipline, influence company leadership, grow senior engineering talent, and represent True Anomaly's capabilities externally to customers, partners, and the broader aerospace community. To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.