Powered Microwave; HPM) Engineer

Albquerque, United States | Posted on 09/03/2026

Stellios Technologies is building advanced high power microwave andenergy systems for defense, aerospace, and energy.

We are hiring an exceptional High Power Microwave(HPM) Engineer to design, build, test, and scale high power microwave sources,with an initial focus on klystrons and gyrotrons.

This is not a purely theoretical or simulation role. You will work directly with hardware and own major parts of the path from first principles design through fabrication, integration, power testing,failure analysis, and design iteration.

• RF and beam wave interaction design for klystrons, gyrotrons
  ,and related vacuum electronic devices
• Resonant cavities, interaction structures, mode selection,output structures, waveguide components, RF windows, and related microwave hardware
• Electron beam transport and electron optics in coordination with electron gun and magnet engineering
• Electromagnetic, particle, and multiphysics simulation used topredict device performance before hardware is built
• High voltage, high vacuum, and high power RF testing,diagnostics, commissioning, and troubleshooting
• Root cause analysis when measured performance does not match simulation or design targets
• Mechanical tolerances, materials, thermal constraints, brazing and joining considerations, vacuum compatibility, and design for manufacturability
• Technical reviews with internal engineers, external experts,machine shops, vacuum tube manufacturers, and critical component suppliers
• Transition of successful prototypes into repeatable production hardware

You must have one of the following:

• A PhD in electrical engineering, physics, applied physics,accelerator science, plasma physics, or a directly relevant field, or
• A BS or MS in a relevant technical field plus at least 5 yearsof directly relevant professional experience
• Direct klystron or gyrotron experience is strongly preferred,but it is not mandatory. We will consider exceptional engineers who have built adjacent high power, high voltage microwave systemsor components, including traveling wave tubes, magnetrons,electron beam systems, accelerators, pulsed RF systems, high powerRF sources, or closely related hardware.
• You need strong fundamentals in electromagnetics and highpower microwave engineering, plus real hardware judgment. We caremore about what you have personally designed, built, tested,debugged, and made work than about credentials alone.
• You should be comfortable working around high voltage, vacuum systems, RF diagnostics, precision microwave hardware, and multidisciplinary engineering teams.
• This role requires access to U.S. export controlled information. Candidates must qualify as a U.S. person under applicable export control laws, including U.S. citizens, U.S.nationals, lawful permanent residents, refugees, and asylees.
• You must be willing to work on site in New Mexico, Southern California, or Austin.
• 100% Employer-Paid Health Insurance Premiums
• Competitive PTO and paid company holidays
• Equity Package with meaningful ownership potential
• Competitive base salary commensurate with experience and expertise