Eos Atomics · 22 hours ago
Electrical Engineer (High Voltage Systems) – Contractor / Part-Time
San Francisco, CA
Full-time, Part-time, Contract
Hybrid
Senior Level
5+ years expEos Atomics is developing next-generation Neutral Beam Injection systems for the commercial magnetic fusion industry. They are seeking a High-Voltage Electrical Engineer to support the design, analysis, and early commercialization of high-energy Neutral Beam Injection subsystems, working closely with various engineering disciplines to create robust electrical designs.
Electrical DistributionNuclear
Responsibilities
Contribute 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
Advise 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
Review 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
Produce 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
Qualification
Required
Bachelor'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 shielding
Strong understanding of: HV safety and fault mitigation
Strong understanding of: Power electronics fundamentals
Comfortable working in low-bureaucracy, early-stage R&D environments
Preferred
Experience 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
Company
Eos Atomics
Eos Atomics develops compact negative-ion neutral beam injectors with lower heat.
2-10 employees
Funding
Current Stage
Early StageTotal Funding
$0.8M2025-03-01Pre Seed· $0.8M
Leadership Team
Ryan Weed
Co-Founder
Company data provided by crunchbase