Principal Mechanical Engineer

Exthymic

Full time Engineers
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Location
San Diego, California, United States
Posted
July 04, 2026

Job Description

We are scientists, engineers, and operators who have spent our careers inside cell therapy manufacturing. We have built the platforms, scaled production, and watched these treatments fail to reach the patients who need them. We are building the technology to close that gap. If this is work you want to do, read on.

About You

You are an experienced mechanical engineer who has taken hardware products from concept to launch. You know the difference between a prototype that proves a concept and one that's ready to build at scale. You know when to 3D print and when to specify injection-molded parts, and you take pride in designs that are not just functional, but manufacturable and serviceable. You thrive at the intersection of disciplines, working fluidly with fluidics, software, and biology teams, and are eager to contribute to a mission-driven team focused on democratizing life-saving therapies

You have relevant instrument and consumables design expe...