Commonwealth Fusion Systems (CFS) is at the forefront of fusion energy development, aiming to revolutionize the energy industry. As a Senior Mechanical Engineer, you'll play a crucial role in designing and implementing advanced R&D equipment and complex machinery. You'll work with a multidisciplinary team of top scientists and engineers, owning key mechanical modules and sub-systems. The role demands innovative problem-solving, strong analytical skills, and the ability to drive projects to completion with speed. CFS offers a dynamic, fast-paced environment where your expertise in mechanical design, 3D modeling, and simulation will be vital. With over $2 billion raised since 2018, CFS is well-positioned to make fusion energy a reality. This role offers not just a job, but an opportunity to be part of a mission that could change the world's energy landscape. Join CFS to apply your skills in a challenging, rewarding environment that values diversity and pushes the boundaries of what's possible in energy technology.