About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers and suppliers to build the energy industry of the future. We’re in the best position to make it happen. Since 2018, we’ve raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world. Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team. If that’s you and this role fits, we want to hear from you. Join the power movement as a Staff Systems Engineer We’re looking for a Systems Engineer to join our R&D team to serve as the primary Systems Engineer. You will be responsible for the seamless integration and operation of complex machinery, ensuring that mechanical, electrical, and software subsystems work in harmony. This role requires a unique blend of technical "tool-sense" and program management. You will be the technical authority for critical utility subsystems, the primary troubleshooter during commissioning, and the lead communicator across functional engineering groups (mechanical, electrical, and controls).