Electrical Engineer (High Voltage Systems)

About UsEos Atomics is not a traditional defense contractor. We’re a deep-tech fusion startup with ambitious goals and the drive to deliver impossibly cool technology in service of a greater good. We believe that fusion will transform humanity’s relationship with energy and holds the key to unlocking a sustainable future across the board.We’re builders, fusion wonks, dot connectors, and creative problem solvers.We’re self-starters—we take ownership and hit the ground running.We move at a pace that allows us to reach milestones in months, not years. Monday’s idea is Friday’s prototype.Everyone at Eos Atomics is responsible for meaningful, mission-driven work. This is hard tech, solving hard problems.Our Core Values Drive Everything We DoEvolve to Innovate – Amplify what’s good; change what isn’t. Pressure-test, iterate, and seek diverse views, experiences, and expertise. Develop wide peripheral vision.Move Fast, Simplify & Go – In our tireless pursuit of results, we act with urgency—complacency has no place here. We do not get lost in unnecessary nuance. We ask questions when we don’t know and answer questions when we do. Flexibility is key.For the Greater Good – We’re not here to chase titles, name-drop, or rest and vest. We’re here to move the needle in fusion energy—arguably the most difficult deep-tech field—because when we get it right, we have a unique opportunity to positively impact the entire planet. And we have a hell of a good time doing it.Do the Right Thing – Take responsibility, embrace truth, and offer transparency. We are serious people working on serious challenges, and we act with the highest levels of integrity, credibility, and respect.About The RoleEos Atomics is developing next-generation Neutral Beam Injection (NBI) systems for the emerging commercial magnetic fusion industry. Our focus is on compact, continuous-wave, medium- and high-energy neutral beams that dramatically reduce cost, footprint, and operational complexity compared to legacy systems used in national laboratories.We are assembling a small, elite engineering team to bridge accelerator physics, high-voltage power electronics, and fusion-grade reliability as we move from prototype systems toward commercial deployment.We are seeking a High-Voltage Electrical Engineer to support the design, analysis, and early commercialization of medium- and high-energy Neutral Beam Injection subsystems. This role is ideal for an electrical engineer with deep experience in HV power systems, pulsed or CW HV architectures, insulation and grounding strategies, and safety-critical electrical design, who wants to contribute meaningfully without committing to a full-time role.You will work closely with plasma physicists, mechanical engineers, and systems engineers to translate fusion-grade requirements into robust, manufacturable electrical designs.Key ResponsibilitiesHigh-Voltage System Design & AnalysisContribute to the design of high-voltage power supply (HVPS) architectures supporting medium- and high-energy NBI operation (tens to hundreds of kV, CW and/or pulsed). Define electrical interfaces between HVPS, ion sources, extraction grids, beamline components, and diagnostics. Perform voltage stress, insulation coordination, creepage/clearance, and grounding analysis for vacuum and atmospheric systems. Support trade studies comparing floating vs grounded HV architectures, isolation strategies, and modular scaling approaches. Safety, Reliability & ComplianceAdvise on high-voltage safety practices, interlocks, grounding schemes, fault detection, and safe commissioning procedures. Contribute to early hazard analyses, FMEA, and risk-retirement plans for HV subsystems. Support alignment with relevant standards (e.g., IEC, IEEE, DOE lab best practices) where applicable. Prototyping & Vendor EngagementReview HVPS vendor specifications, drawings, and test data. Support supplier technical due diligence and integration planning. Provide engineering input for prototype builds, test stands, and early customer demonstrations. Documentation & Knowledge TransferProduce concise design documentation, schematics, and interface definitions suitable for internal use, partners, and future regulatory review. Mentor junior engineers or cross-disciplinary team members on HV fundamentals as needed. Required QualificationsBachelor’s or Master’s degree in Electrical Engineering or equivalent practical experience. 5+ years of hands-on experience with high-voltage electrical systems, power electronics, or accelerator-adjacent infrastructure. Demonstrated experience designing or supporting systems operating at ≥10 kV (experience above 50–100 kV strongly preferred). Strong understanding of:High-voltage insulation, grounding, and shieldingHV safety and fault mitigationPower electronics fundamentalsComfortable working in low-bureaucracy, early-stage R&D environments. Preferred ExperienceExperience with particle accelerators, ion sources, neutral beam systems, RF systems, or fusion devices. Familiarity with vacuum systems and HV operation in vacuum. Experience with continuous-wave (CW) high-power systems (as opposed to purely pulsed systems). Prior work at a national laboratory, accelerator facility, fusion program, or advanced energy startup. Exposure to test stand commissioning and experimental hardware. Engagement DetailsFlexible workload (e.g., 5–20 hrs/week depending on phase). Contractor or part-time structure to match availability. Opportunity to scale involvement over time as programs mature. Potential pathway to expanded role as Eos Atomics transitions from R&D to commercial delivery. Why This Role Is InterestingWork on real, hardware-driven fusion systems, not paper studies. Influence foundational architectural decisions early—your designs will shape the product. Collaborate with a small, senior technical team operating at the intersection of fusion physics and industrial engineering. Help unlock a critical enabling technology for commercial fusion power.