<div><strong style="font-size:16px;">About Commonwealth Fusion Systems: </strong></div><div> </div><div><span style="font-size:16px;">Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.</span></div><div> </div><div><span style="font-size:16px;">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.</span></div><div> </div><div><span style="font-size:16px;">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.</span></div><div> </div><div><span style="font-size:16px;">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. </span></div><div> </div><div><span style="font-size:16px;">If that’s you and this role fits, we want to hear from you.</span></div><div><br></div><div><strong style="font-size:16px;">Join the power movement as a Mechanical Engineering Intern</strong></div><div> </div><div><span style="font-size:16px;">We are looking for a talented Mechanical Engineering Intern to join our team! CFS interns are highly valued within the organization and placed into meaningful and challenging roles.</span></div><br><br><h3>Program Details:</h3><ul><li><strong>13-18 week internship</strong></li><li>40-50 hours per week with set hourly salary based on year in school</li><li>Opportunities on site in Milpitas, CA. If an intern is going to be on site, you will be responsible for your own transportation and housing</li><li>Specific project assignments and required technical skillset will vary based on the team’s existing need.</li><li>Opportunities available for currently enrolled college students in all levels of schooling from bachelor’s degree to PhD</li><li>Interns must be authorized to work in the United States for any employer</li></ul><h3>What you'll do:</h3><ul><li>Mechanical Design &amp; Engineering Analysis: Perform design CAD modeling, detail drafting, and fundamental engineering calculations to validate mechanical hardware</li><li>Build, Assembly &amp; Testing: Hands-on fabrication, prototyping, hardware assembly, and physical testing/validation in the shop or lab</li><li>CAD &amp; Digital File Organization: Organize CAD models, maintain standard component libraries, and clean up workspace file structures to ensure data is easy to navigate and reuse</li><li>Lab &amp; Shop Housekeeping: Assist in setting up shop toolboxes, organizing incoming parts/inventory, and implementing physical organizational systems to maintain an efficient engineering workspace</li></ul><h3>What we’re looking for:</h3><ul><ul style="list-style-type:disc;"><li>Pursuing an engineering degree with focus in the fields of Mechanical Engineering, Aerospace Engineering, Mechatronics</li><li>3D CAD modeling, engineering calculations</li><li>FEA (nice to have)</li><li>Hands-on assembly</li><li>Basic machining</li><li>3D printing</li><li>Student team and activities (Formula SAE, robotics, machine shop expreience)</li><li>Strong organizational skills</li></ul></ul><h3>Must-have Requirements:</h3><ul><li>Willingness to travel or work required nights/weekends/on-call occasionally</li><li>Perform activities such as typing, standing, or sitting for extended periods of time</li><li>Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics</li></ul><br><div><span style="font-size:10px;">#LI-Onsite</span></div><div><br></div><div><span style="font-size:16px;">At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.</span></div><div> </div><div><span style="font-size:16px;">We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.</span></div><div> </div><div><strong style="font-size:16px;">This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.</strong></div>

<p>The world needs a fundamentally new source of clean energy to meet our growing energy demands and combat climate change. Scientists have been studying fusion for decades and have made significant progress, but have yet to achieve its potential as a commercial power source. However, its promise has continued to drive interest with the understanding that successfully deployed fusion power would transform the world&rsquo;s energy landscape.</p>
<p>Commonwealth Fusion Systems (CFS) was spun out of MIT's Plasma Science and Fusion Center to leverage the decades of fusion research combined with the innovation and speed of the private sector. Supported by the world&rsquo;s leading investors in breakthrough energy technologies, the CFS team is uniquely positioned to deliver the fastest path to commercial fusion energy. CFS has assembled a world-class team to design and build fusion machines. This team includes experts in magnets, manufacturing, and plasma physics dedicated to the mission of delivering clean, limitless fusion power to the world.</p>

Intern - Mechanical Engineer - Summer 2027

<div><strong>About Commonwealth Fusion Systems: </strong></div><div> </div><div><span>Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.</span></div><div> </div><div><span>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.</span></div><div> </div><div><span>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.</span></div><div> </div><div><span>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. </span></div><div> </div><div><span>If that’s you and this role fits, we want to hear from you.</span></div><div><br /></div><div><strong>Join the power movement as a Mechanical Engineering Intern</strong></div><div> </div><div><span>We are looking for a talented Mechanical Engineering Intern to join our team! CFS interns are highly valued within the organization and placed into meaningful and challenging roles.</span></div><br /><br /><h3>Program Details:</h3><ul><li><strong>13-18 week internship</strong></li><li>40-50 hours per week with set hourly salary based on year in school</li><li>Opportunities on site in Milpitas, CA. If an intern is going to be on site, you will be responsible for your own transportation and housing</li><li>Specific project assignments and required technical skillset will vary based on the team’s existing need.</li><li>Opportunities available for currently enrolled college students in all levels of schooling from bachelor’s degree to PhD</li><li>Interns must be authorized to work in the United States for any employer</li></ul><h3>What you'll do:</h3><ul><li>Mechanical Design &amp; Engineering Analysis: Perform design CAD modeling, detail drafting, and fundamental engineering calculations to validate mechanical hardware</li><li>Build, Assembly &amp; Testing: Hands-on fabrication, prototyping, hardware assembly, and physical testing/validation in the shop or lab</li><li>CAD &amp; Digital File Organization: Organize CAD models, maintain standard component libraries, and clean up workspace file structures to ensure data is easy to navigate and reuse</li><li>Lab &amp; Shop Housekeeping: Assist in setting up shop toolboxes, organizing incoming parts/inventory, and implementing physical organizational systems to maintain an efficient engineering workspace</li></ul><h3>What we’re looking for:</h3><ul><ul><li>Pursuing an engineering degree with focus in the fields of Mechanical Engineering, Aerospace Engineering, Mechatronics</li><li>3D CAD modeling, engineering calculations</li><li>FEA (nice to have)</li><li>Hands-on assembly</li><li>Basic machining</li><li>3D printing</li><li>Student team and activities (Formula SAE, robotics, machine shop expreience)</li><li>Strong organizational skills</li></ul></ul><h3>Must-have Requirements:</h3><ul><li>Willingness to travel or work required nights/weekends/on-call occasionally</li><li>Perform activities such as typing, standing, or sitting for extended periods of time</li><li>Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics</li></ul><br /><div><span>#LI-Onsite</span></div><div><br /></div><div><span>At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.</span></div><div> </div><div><span>We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.</span></div><div> </div><div><strong>This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.</strong></div>

Intern - Mechanical Engineer - Summer 2027New

About the Job

About the Company

Commonwealth Fusion Systems (CFS)

Similar Jobs

Engineering Intern - Mechanical (Summer 2027)

Engineering Intern - Mechanical (Summer 2027)

Test Engineering Intern - Spring 2027

Test Engineering Intern - Spring 2027

Engineer Intern - Manufacturing (Summer 2027)

Engineer Intern - Manufacturing (Summer 2027)

Engineer Intern - Mechanical (Summer 2027)

Engineer Intern - Mechanical (Summer 2027)

Manufacturing Engineer Intern Fall 2026

Manufacturing Engineer Intern Fall 2026

Mechanical Engineering Intern

Mechanical Engineering Intern

R&D Engineering Intern

R&D Engineering Intern

Intern - Industrial Engineer - Spring or Summer 2027

Intern - Industrial Engineer - Spring or Summer 2027

Intern - Manufacturing Engineer - Spring or Summer 2027

Intern - Manufacturing Engineer - Spring or Summer 2027

Intern - Mechanical Equipment Engineer - Spring 2027

Intern - Mechanical Equipment Engineer - Spring 2027New