RF & PLASMA RESEARCH ENGINEER

← All roles Stellios Technologies is building advanced high power microwave and energy systems for defense, aerospace, and energy. We are hiring an exceptional RF & Plasma Research Engineer to build the computational models behind next generation high power microwave sources, RF systems, plasma interactions, and advanced energy systems. This is a computational research role with direct connection to hardware. Your job is not to generate beautiful simulations. Your job is to build models that predict reality, identify the physics that controls performance, and help the engineering team make better hardware decisions faster. What You Will Own And/Or Support Electromagnetic modeling of cavities, waveguides, resonators, mode converters, launchers, antennas, and high power RF structuresParticle in cell and beam wave interaction modeling for klystrons, gyrotrons, electron beam systems, and related devicesPlasma modeling relevant to high power microwave propagation, plasma interaction, breakdown, and advanced energy systemsReduced order models and first principles calculations used to sanity check large simulationsNumerical optimization, parameter sweeps, uncertainty analysis, and design space explorationModel validation against analytic limits, published benchmarks, component tests, and full system experimental dataDevelopment of internal Python, C++, Julia, MATLAB, or equivalent tools that accelerate engineering analysisIntegration of commercial solvers and open source codes into repeatable computational workflowsClose collaboration with RF, HPM, power systems, magnet, thermal, mechanical, and experimental engineersTechnical research that can translate into new products, patents, and publications where appropriate Who We Are Looking For You Must Have One Of The Following A PhD in electrical engineering, plasma physics, applied physics, computational physics, accelerator science, or a directly relevant field, orA BS or MS in a relevant technical field plus at least 5 years of directly relevant professional experience You need strong fundamentals in electromagnetics and at least one of the following: plasma physics, beam physics, vacuum electronics, computational electromagnetics, particle in cell methods, RF systems, or accelerator physics. You must be able to write code, interrogate a numerical model, recognize when a solver is lying to you, and reduce a complicated simulation result back to first principles. We strongly value candidates who have validated models against real experiments. Purely academic experience can be excellent if the work involved serious simulation development, experimental comparison, or difficult computational physics. 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. This role may be based in Southern California, Austin, or New Mexico. Much of the work is computational, so daily lab presence is not required, but you should expect close collaboration with Stellios hardware teams. Competitive compensation and meaningful equity. Apply for this roleTechnical screening, résumé, and a few focused questions.