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Commonwealth Fusion

136 open roles

Mechanical Engineer

$107k to $160k

Devens, MAFull-timePosted Oct 28, 2026

Against the United States typical range

Job description

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, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading 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 Mechanical Engineer We are seeking a highly motivated and experienced Mechanical Engineer to join our manufacturing team. In this role, you will be responsible for providing technical expertise during the commissioning, implementation, and integration of manufacturing equipment.

You will work closely with our production team to ensure that our manufacturing processes are optimized for efficiency, quality, and safety. Additionally, this position requires coverage or partial coverage for the second shift, as well as support for Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) of equipment.

Description copied from Commonwealth Fusion's careers page. Read the full posting before you apply.

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