Principal Safety Engineer

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Job Description

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


CFS collaborates with MIT to leverage decades of research combined with groundbreaking new high-temperature superconducting (HTS) magnet technology. HTS magnets will enable compact fusion power plants that can be constructed faster and at lower cost. Our mission is to deploy these power plants to meet global decarbonization goals as fast as possible. To that end, 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 implement this plan, we are looking to add dedicated people to the team who treat people well, improve our work by adding multifaceted perspectives and new ways of solving problems, have achieved outstanding results through a range of pursuits, and have skills and experience related to this role.


We are seeking a highly skilled and motivated Principal Safety Engineer to join our team at CFS. The CFS Principal Safety Engineer will play a pivotal role in ensuring the safety of both the SPARC and future ARC projects; ambitious endeavors aimed at developing cutting-edge fusion power technology. In this role, you will be responsible for overseeing safety strategies, workflows, and practices for both projects, ensuring compliance with relevant codes, regulations, and industry standards. The CFS Principal Safety Engineer will collaborate with cross-functional teams, review and update safety guidance, support the definition of and response to major transients, and implement safety standards for various activities within the SPARC and ARC programs.

The Principal Safety Engineer provides safety engineering technical support for engineering design, assembly, and operations for the SPARC Project and future ARC Projects. Safety Engineer focus areas include, but are not limited to Equipment Safety, Process Safety, and Operational Safety. This role supports overall EHS initiatives.


The Principal Safety Engineer will work closely with a cross-functional team, providing guidance and supervision to team members involved in safety-related initiatives and compliance efforts within the SPARC and ARC projects. This lead role will lead committee type discussions, working meetings, and implementation of project needs and actions.

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