Engineer, Hibernation Team

Confirmed live in the last 24 hours

UntilLabs

Compensation

$120k - $190k/per-year-salary

Bay Area

On-site

Posted September 29, 2025

Job Description

Until is a moonshot company building a “pause button” for biology. Our near-term focus is organ-scale reversible cryopreservation: preserving donated organs at subzero temperatures without ice formation, then rewarming them uniformly for transplant. By solving this grand challenge, we’re laying the foundation for whole-body reversible cryopreservation, giving patients a bridge to future cures.

To achieve our goal, we are assembling an interdisciplinary team to develop perfusion systems, cryoprotectant formulations, vitrification and rewarming hardware.

We envision a future where no transplantable organ is lost to logistics, and no terminal diagnosis is final because patients can safely wait for future medicine to arrive.

About the Role

As an engineer on the hibernation team, you'll be building N-of-1 hardware and software stacks to cryopreserve whole organisms. This requires the ability to own mechanical design and fabrication, electrical design and bringup, and software architecture and development. If successful, you will be the principal engineer to demonstrate the feasibility of whole body reversible cryopreservation in rodents.

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