Senior RF Engineer, Fusion Power Systems (Equity)

Eos Atomics; San Francisco (CA); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Competitive base salary

Equity options

Generous paid leave

December break

Job summary

Eos Atomics, based in San Francisco, is pursuing a senior RF systems engineering role to own end-to-end design of MW-class RF heating and diagnostic systems for a commercial fusion reactor.

You will lead architecture, high-power design, testing, and commissioning, bridging RF hardware with fusion physics while mentoring junior engineers in a fast-paced, collaborative environment.

The role emphasizes rapid prototyping, real-world feedback, and delivering reliable, scalable RF systems.

Qualifications

• Degree with electromagnetics or RF focus (EE / physics / nuclear).
• 6+ years designing high-power RF systems (CW or pulsed).
• Deep knowledge of RF fundamentals and architecture; MW/RF components.
• Experience presenting complex RF problems clearly and rapidly learning new concepts.
• Hands-on RF lab skills with high-voltage, arc-detection, vacuum equipment.

Responsibilities

• Design and optimize MW-class RF transmission networks and matching units.
• Lead development of high-power RF sources (klystrons, gyrotrons, tetrodes, SSPA).
• Develop active tuning networks for dynamic impedance matching.
• Coordinate with mechanical/electrical/vacuum teams to specify requirements.
• Lead RF testing, conditioning, arc mitigation, and safety protocols.

Skills

RF system design

High-power RF

Cross-functional leadership

Test & debugging

Modeling & simulation

Education

Bachelor's/Master's/PhD in Electrical Engineering, Applied Physics, or Nuclear Engineering (RF focus)

Tools

Matlab/Simulink

Ansys HFSS

CST Studio Suite

COMSOL Multiphysics

Job description

Eos Atomics, based in San Francisco, is pursuing a senior RF systems engineering role to own end-to-end design of MW-class RF heating and diagnostic systems for a commercial fusion reactor.

You will lead architecture, high-power design, testing, and commissioning, bridging RF hardware with fusion physics while mentoring junior engineers in a fast-paced, collaborative environment.

The role emphasizes rapid prototyping, real-world feedback, and delivering reliable, scalable RF systems.