Commonwealth Fusion Systems
RF Electronics Engineer
- Confirmed live in the last 24 hours
- $107k–$160k
- Mid level
- Full-time
- On-site · Devens, MA
- 5+ yrs exp
- Added 1 month ago
About this role
Commonwealth Fusion Systems seeks an RF Electronics Engineer to develop and validate the high-power RF systems that will heat plasma in their SPARC fusion reactor. You'll execute hands-on testing from prototype to full-scale operation, integrating RF transmitters with control electronics to support net energy achievement.
What you'll do
- Conduct board-level bring-up and validation of RF and power electronics subsystems
- Operate and troubleshoot high-power RF transmitters delivering >25MW at 120MHz
- Integrate hardware RF systems with software control systems for closed-loop operation
- Design and execute test plans to validate RF plant performance and reliability
- Collaborate with physics and systems teams to ensure RF delivery meets tokamak requirements
- Document test results and support scale-up from benchtop prototypes to production systems
What they're looking for
- RF circuit design and analysis
- High-power electronics and transmitter operation
- Test engineering and instrumentation
- Hardware-software integration
- Problem-solving under constraints
- Technical documentation and reporting
- Power electronics fundamentals
- Control systems interaction
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Commonwealth Fusion Systems
Commonwealth Fusion Systems develops next-generation fusion power technology, including high-temperature superconducting magnets and the SPARC fusion power demonstrator. The company is hiring R&D engineers, test engineers, mechanical engineers, and metrology specialists to advance fusion energy development through rigorous testing, innovative fluid systems design, manufacturing optimization, and precision measurement of complex reactor components.
- Industry
- Technology & Software
Likely interview questions
- Walk us through your experience bringing up RF or power electronics from prototype to full-scale operation.
- Describe a time you debugged a complex hardware-software integration issue. How did you approach it?