Research Associate - Hibernation
About the job
- Bachelor’s degree in a STEM field (or equivalent STEM-related training and experience)
- Extensive hands-on experience with in vivo rodent models
- Background or strong interest in physiology, with a creative approach to understanding and manipulating organ function
- Self-driven, resourceful, and motivated by discovery—committed to advancing ambitious scientific projects and pushing the boundaries of knowledge
- At least 2 years of experience with a strong track record of success in executing complex and demanding laboratory procedures
- Demonstrated enthusiasm for problem-solving and for exploring novel protocols and research directions
- Handle experimental setup and preparation, including making solutions, preparing equipment, and assembling the perfusion circuit
- Support whole-body perfusion experiments, including monitoring physiological parameters, controlling perfusion conditions, and maintaining detailed documentation
- Evaluate multiple tissues and organs post-perfusion, assessing both structural integrity and cryoprotectant distribution across different organ systems
- Ensure accurate sample processing and on-time data reporting
- Review relevant literature and design experimental tests to address key questions that advance and optimize preservation protocols
- Surgical experience is highly desirable
About the company
UntilLabs develops reversible cryopreservation technology to extend the viability of human organs for transplantation. The goal is to keep organs alive at cryogenic temperatures long enough to improve organ matching and reduce waste from time limits, potentially weeks or months of preserved time. The approach uses cooling to very low temperatures (below -130°C) with cryoprotectants to prevent ice damage, followed by advanced warming methods to revive the organs without harm. While cryopreservation has worked for cells and simple tissues, UntilLabs works on scaling this to whole organs, tackling challenges like ice formation and nutrient/waste management in large tissues. In the long term, the company envisions whole-body reversible cryopreservation as a bridge to future medical cures.
Company Size
51-200
Company Stage
Series A
Total Funding
$58M
Headquarters
San Francisco, California
Founded
2024
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Simplify's Take
What believers are saying
- 2026 hiring spans perfusion, cardiac biology, and organ perfusion, signaling active R&D expansion.
- Pig organ isolation and ex-vivo evaluation roles suggest near-term preclinical organ validation.
- The 2026 patent strengthens defensibility around cryoprotectants, vitrification, and rewarming hardware.
What critics are saying
- X-Therma already has FDA Breakthrough status and 120-hour kidney preservation claims.
- Until still has no public human transplant data, leaving commercialization unproven.
- Whole-body cryopreservation messaging invites regulatory scrutiny and distracts from organ preservation execution.
What makes UntilLabs unique
- Founders Fund, Lux, and Field backed Until Labs' 2025 $58M Series A.
- Until's 2026 site says it has raised $100M+ and is hiring.
- Its patent for reversible cryopreservation covers perfusion, pressure, and volumetric rewarming.
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Benefits
- Health Insurance
- Dental Insurance
- Vision Insurance
- Flexible Work Hours
- Paid Holidays
- 401(k) Retirement Plan
- Health Savings Account/Flexible Spending Account
- Commuter Benefits
- Professional Development Budget