Devens, MA, USA

Commonwealth Fusion Systems

Senior Diagnostics Mechanical Engineer

Intern - Materials Engineer or Materials Test - Spring, Summer 2026

Advancing clean, reliable, affordable energy solutions that will lead us to a net-zero emissions future.

Breakthrough Energy Investments, LLC

Breakthrough Energy Ventures

Tell us about your professional DNA to get discovered by any company in our network with opportunities relevant to your career goals.

Leverage our network to build your career.

#### Welcome!

Thank you for joining Breakthroughenergy Network!

To help us best support you in your search, please take a few minutes to tell us about what you are looking for in your next role. We’ll use this information to connect you to relevant opportunities in the Breakthroughenergy network as they come up.

You can always update this information later.

Welcome to the Breakthroughenergy talent network

As our companies grow, they look to us to help them find the best talent.

Signal that you'd be interested in working with a Breakthroughenergy company to help us put the right opportunities at great companies on your radar. The choice to pursue a new career move is then up to you.

Breakthrough Energy Ventures Portfolio Company Career Opportunities

Senior Diagnostics Mechanical Engineer

Intern - Materials Engineer or Materials Test - Spring, Summer 2026