Until is building a pause button for biology, so every single transplantable organ finds a recipient and saves a life. Backed by Founders Fund and Lux.
About the role
We're looking for fast-moving, hands-on engineers and physicists with strong fundamentals, high autonomy, and a desire to make technology that feels impossible until it works.
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About the Company
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, and 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
We're looking for fast-moving, hands-on engineers and physicists with strong fundamentals, high autonomy, and a desire to make technology that feels impossible until it works.
Organ systems perform millions of complex, regulated biochemical operations every second. Your kidneys filter over 150 L of fluid per day, reabsorb over 99% of the filtrate, and hold blood pH within a tolerance of 0.05. Every drop of blood travels a...
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