Commonwealth Fusion Systems invites Paid Internship Positions in Devens, MA, USA (Apply Now)

Commonwealth Fusion Systems (CFS) has opened applications for two paid internship positions in the United States. These roles are part of CFS’s ongoing efforts to support fusion energy research and development and are open to currently enrolled Bachelor’s, Master’s, and PhD students. Both internships are paid, full-time, and based in Massachusetts.

Internship 1: Multi-physics Analysis Intern

Job Highlights

• Internship Duration: 12–16 weeks

• Work Hours: 40–50 hours per week

• Location: Devens, Massachusetts (on-site)

• Eligibility: Bachelor’s, Master’s, and PhD students

• Work Authorization: Must be authorized to work in the US

Key Work Areas

• Develop 1D and 2D models for thermal, electromagnetic, and wave mechanics systems

• Run coupled electromagnetic and thermal simulations

• Analyze experimental data from superconducting magnet tests

• Perform trade-space and numerical sensitivity analysis

• Improve analysis pipelines using Python, MATLAB, or similar tools

• Conduct literature reviews related to quench and cable physics

• Present findings and collaborate with cross-functional R&D teams

Skills & Background Preferred

• Strong background in Physics, Electrical Engineering, Applied Math, or related STEM fields

• Experience with COMSOL, ANSYS, MATLAB, Python

• Knowledge of electromagnetism, numerical modeling, and statistics

• Interest in superconductors and high-performance simulations

Pay & Benefits

• Hourly Pay:

  • BS interns: $23–$29/hour

  • MS/PhD interns: $32–$35/hour

• Health, dental, and vision insurance

• 401(k) with employer matching (21+)

• Paid sick time and professional development opportunities

Apply For Multi-physics Analysis Intern Online

Internship 2: R&D Test Engineering Intern

Job Highlights

• Internship Duration: 12–16 weeks

• Work Hours: 40–50 hours per week

• Locations: Somerville, MA or Devens, MA (on-site)

• Eligibility: Bachelor’s, Master’s, and PhD students

• Work Authorization: Must be authorized to work in the US

Key Work Areas

• Support engineers in designing and building test stands and fixtures

• Execute experimental tests and collect high-quality data

• Perform data analysis to support magnet technology development

• Design, build, and commission equipment and testing systems

• Work closely with manufacturing, R&D, and SPARC teams

• Support design reviews and test readiness reviews

Skills & Background Preferred

• Pursuing degree in Mechanical, Electrical, Aerospace Engineering, Physics, or Applied Physics

• Hands-on experience through labs, projects, research, or internships

• Exposure to cryogenics, high voltage, high currents, or instrumentation is a plus

• Familiarity with ANSYS, COMSOL, Python, CAD tools preferred

Pay & Benefits

• Hourly Pay:

  • BS interns: $23–$29/hour

  • MS/PhD interns: $32–$35/hour

• Health, dental, and vision insurance

• 401(k) with employer matching (21+)

• Paid sick leave and team-building activities

Apply For R&D Test Engineering Intern

Important Note

• Both roles may require occasional travel or off-hour work

• Strong focus on lab safety and industrial hazard awareness

• Employment is subject to US export control regulations