Materials Science Intern (Spring/Summer 2026)

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.

We’re looking for talented young applied physicists, engineers, and materials scientists who want to do more with their internship than design a better genmoji.

• Strong fundamentals in both a scientific (physics, chemistry, biology) and an engineering (electrical, mechanical, computational) discipline
• Recently finished or working towards degree in Materials Science, Chemistry, Physics, or equivalent
• Ability to work for minimum 3 full months
• Demonstrations of exceptional ability and autonomy in past work

As an equal opportunity employer, Until is committed to providing employment opportunities to all individuals. All applicants for positions at Until will be treated without regard to race, color, ethnicity, religion, sex, gender, gender identity and expression, sexual orientation, national origin, disability, age, marital status, veteran status, pregnancy, or any other basis prohibited by applicable law.