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Senior Mechanical Engineer


Confirmed live in the last 24 hours

Commonwealth Fusion Systems

Commonwealth Fusion Systems

501-1,000 employees

Develops compact fusion power plants


Senior, Expert

Devens, MA, USA

Design Engineering
Thermal and Fluid Systems Engineering
Mechanical Engineering
  • Bachelor’s degree in mechanical engineering, aerospace engineering, physics, or another relevant field
  • Excellent fundamental knowledge of mechanical systems such as static structures and heat transfer
  • Relevant hands-on experience in the form of parts designed for high loads and extreme environments
  • Demonstrated record of design of mechanical components beyond desktop scale
  • At least 5 years of engineering design and analysis experience
  • At least 3 years providing engineering support to production hardware
  • Solid background in component design and performing detailed analyses
  • Familiarity with all steps in the design process with an emphasis on creativity and simplicity
  • Authored documentation in the form of specifications
  • Be self-motivated and exhibit excellent problem-solving skills
  • Led interdisciplinary teams to deliver hardware on time and to requirements
  • Produce new and iterate on existing design concepts using NX
  • Perform thermal, structural, and electromagnetic analysis to inform decisions on SPARC magnets
  • Own product from final design through final assembly and commissioning for SPARC
  • Diagnose issues on the production and assembly line and provide path forward
  • Work with the SPARC plant and tokamak operations team to integrate the system into overall control system architecture
  • Work with experimental teams on instrumentation, measurement, and correlation of experiment to analysis
  • Provide technical support to procurement during manufacturing
  • Prepare reports, presentations, and other documentation to serve as design review and validation
  • Develop team systems to better serve the FEED and magnet systems teams during the ARC era
Commonwealth Fusion Systems

Commonwealth Fusion Systems


Commonwealth Fusion Systems is leading the charge in developing compact fusion power plants, utilizing cutting-edge high-temperature superconducting magnet technology. This focus allows for quicker and more cost-effective construction of sustainable energy sources. With projects like SPARC, which aims to be the world's first net energy fusion demonstration device, the company not only demonstrates its leadership in the energy sector but also its commitment to addressing climate change through innovative solutions.

Company Stage

Series B

Total Funding



Cambridge, Massachusetts



Growth & Insights

6 month growth


1 year growth


2 year growth



12.5 Company-wide Holidays

Our vacation policy is 'take vacation'

Our sick time policy is 'get better and try not to make others sick'

Generous parental leave policy

Health Reimbursement

Health, Dependent Care, & Limited Purpose Flexible Spending Accounts

Delta Dental, Blue 20/20 Vision optional

Wellbeing / Headspace coverage

Short-term & long-term disability

Life and AD&D insurance