Optical Device Engineer

Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy. 

CFS is collaborating with MIT to leverage decades of research combined with new groundbreaking high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. 

The mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. CFS has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by the world’s leading investors, CFS is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. 

If you are interested in joining our team, check out cfs.energy/careers for more information.

Commonwealth Fusion Systems (CFS) has the fastest, lowest cost path to commercial fusion energy.

CFS is collaborating with MIT to leverage decades of research combined with new groundbreaking high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. The mission is to deploy fusion power plants to meet global decarbonization goals as fast as possible. CFS has assembled a team of leaders in tough tech, fusion science, and manufacturing with a track record of rapid execution. Supported by the world’s leading investors, CFS is uniquely positioned to deliver limitless, clean, fusion power to combat climate change. To execute this plan, we are looking to add talented people to the team who are mission-driven and treat people well, improve our team by adding diverse perspectives and new ways of solving problems, have demonstrated exceptional results through a range of different pursuits, and have skill sets and experience that relate to this role.

The design of the SPARC tokamak is continually advancing, including the diagnostic systems that will be used to control the plasma and deliver the scientific data necessary to inform the design of ARC.  These include dozens of sub-systems with both passive and active optical components, from ultraviolet to microwave; camera imaging and dispersive spectroscopy in the UV to IR range, laser-based diagnostics such as Thomson scattering and interferometry, as well as microwave-based reflectometry and electron cyclotron emission measurements.  Techniques have been demonstrated over decades of government-sponsored fusion research, and CFS is looking for candidates who can contribute to finding innovative design and engineering solutions to integrate these tools into the SPARC facility.  Candidates with a range of optoelectronic and optomechanical skills areas are needed to help design, assemble, test and commission systems for light extraction and transmission between the SPARC tokamak and the sensitive light analysis tools in dedicated diagnostic laboratory spaces adjacent to the tokamak.  Key challenges will be the remote monitoring and control of multiple optical systems to maintain alignment as well as the development of bespoke optical (electrical and mechanical) components in areas where commercial-off-the-shelf items cannot meet SPARC specifications.  We welcome cross-industry career changers from avionics, robotics and more to build a diverse team to meet these challenges.  Candidates will work alongside CFS staff, MIT-PSFC partners and fusion community collaborators from around the world to design and build the tools that will measure net energy from a tokamak for the first time.  

CFS team members thrive in a fast-paced, dynamic environment and have demonstrated exceptional results through a range of different pursuits. We all tightly align with our company values of integrity, execution, impact and self-critique. As we grow, we are looking to add talented people who are mission driven and bring diverse perspectives and new ways of solving problems.

At CFS, we deeply value diversity and are an equal opportunity employer by choice. We consider all qualified applicants equally for employment. We do not discriminate on the basis of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law, ordinance, or regulation.