R&D Engineer – High-Voltage Systems (Vacuum)

Commonwealth Fusion Systems LLC; Massachusetts; Hybrid; USD 110,000 - 150,000; Full time

Job summary

Commonwealth Fusion Systems LLC is seeking an R&D Engineer to advance high voltage systems for superconducting magnets. You will design, build, and test equipment, perform analyses, and collaborate across manufacturing, R&D, and SPARC teams to push test campaigns forward.

The role requires a bachelor’s in engineering, 2+ years in R&D or test engineering, and experience with instrumentation plus CAD tools. Occasional travel is expected as projects accelerate toward SPARC/ARC milestones.

Qualifications

• Bachelor's degree in engineering or related field.
• 2+ years of R&D or test engineering experience.
• Experience with instrumentation and control components.
• Proficiency with CAD design in Siemens NX.
• Strong troubleshooting and communication skills.
• Willingness to travel occasionally.

Responsibilities

• Develop new high voltage system designs and subsystems for R&D.
• Design, build, and commission high voltage test equipment for campaigns.
• Perform structural, electrical, and thermal analyses to support design.
• Build expertise in testing superconducting magnets under high voltage.
• Collaborate across manufacturing, R&D, and SPARC teams on tests.

Skills

High voltage systems design

Electromechanical design

Data analysis

Test campaign execution

Cross-disciplinary collaboration

Problem solving

Education

Bachelor's degree in engineering

Tools

Siemens NX

LabVIEW

Python

Job description

Commonwealth Fusion Systems LLC is seeking an R&D Engineer to advance high voltage systems for superconducting magnets. You will design, build, and test equipment, perform analyses, and collaborate across manufacturing, R&D, and SPARC teams to push test campaigns forward.

The role requires a bachelor’s in engineering, 2+ years in R&D or test engineering, and experience with instrumentation plus CAD tools. Occasional travel is expected as projects accelerate toward SPARC/ARC milestones.