Mantel is developing the first molten-salt-based carbon capture technology designed to operate at the high temperatures found inside boilers, kilns, and furnaces — enabling highly efficient carbon capture that has not been possible until now. Carbon capture can be applied across industries to reduce emissions and achieve net-negative emissions. By solving for efficiency Mantel can cut costs substantially, unlocking carbon capture's role in reaching net zero emissions by 2050. To learn more, go to: https://www.mantelcapture.com/

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Mantel is looking for a Fall Engineering Intern excited to join a promising carbon capture startup working on the development of molten salts as a novel CO2 sorbent material. Mantel is looking for both undergrad and graduate level interns from a variety of backgrounds including Chemical Engineering, Mechanical Engineering and Materials Science who are interested in gaining machine shop, prototyping and fabrication experience. Recent graduates and students graduating in December 2027 are welcome to apply. This is a full time 40 hour per week position in the Cambridge, Massachusetts. Spring Interns will be given the opportunity to work on a variety of science and engineering problems such as:

Improve our understanding of the performance of different material of construction candidates.
Run, analyze and modify lab-based carbon capture experiments
Design and fabrication of new diagnostics or components for our lab-based pilot with access to a fully kitted machine shop, state of the art 3D printing facilities and electronics lab.
System process engineering modeling and early engineering studies

All internships include a path to full-time positions for the right candidates.

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Spring Engineering Internship