Scientist (Organ Perfusion)
San Francisco, CAFull-time$120–150K/yrPosted 1y agoStill listed 1 day ago
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At a glance
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Job overview
Until is hiring a Scientist (Organ Perfusion). Until is a moonshot company focused on organ-scale reversible cryopreservation, seeking a Scientist to join its whole organ preservation team and apply expertise in perfusion, preservation, and rapid protocol development to achieve large organ cryopreservation.
Key focus areas include Perform pig and rat organ isolation and ex‑vivo evaluation protocols, including perfusion and histology, Develop protocols and assays, and Evaluate health of organs following cryopreservation within scientific team.
Successful candidates bring Graduate Degree In Biology Or Related Field and 3 Years Independent Scientific Discovery In Industry Setting. Important skills include Perfusion, Preservation, Viability Assessment, Rapid Protocol Development, Creative Scientific Engagement, and Organ Isolation.
Skills & qualifications
Skills
Qualifications
Benefits
Full 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, 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 are seeking a Scientist to join our whole organ preservation team. You will apply your experience in perfusion, preservation, viability assessment and your passion for rapid protocol development to make successful large organ cryopreservation a reality. You will have the opportunity to collaborate with scientists and engineers across the company on variety of methods inspired by first principles of biology, physics, and chemistry. Creative scientific engagement is a requirement of the role, and new avenues for discovery and optimization are continuously supported. Responsibilities
- Perform pig and rat organ isolation and ex-vivo evaluation protocols, including perfusion and histology
- Protocol and assay development
- Work within scientific team to evaluate health of organs following cryopreservation
- Prepare equipment and supplies for experiments, including ordering and device maintenance
- Ensure accurate sample processing and on-time data reporting Qualifications
- You have a graduate degree (Masters, PhD) in biology or other related field, or otherwise have significant experience (~3 years) with independent scientific discovery in an industry setting.
- You have demonstrated a passion for rapid problem solving and exploration of novel topics / protocols.
- Desire to work in a laboratory setting.
- You demonstrate agency, problem solving, passion for discovery, and a drive to push the boundaries of science through meaningful involvement in an ambitious project. Benefits
- Opportunity for outsized impact creating the future as an early team member
- Generous medical, dental and vision insurance coverage
- Flexible time off and paid holidays
- Competitive compensation package, including salary and equity
- 401(k) retirement savings plan
- FSA and commuter benefits
- Subsidized lunch daily 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. 120000 - 150000 USD a year
While this represents our expected range based on market data, final compensation will be determined based on your specific qualifications and may be outside this range. Please keep in mind that the equity portion of the offer is not included in this estimate.
How this job compares
Set against the 2,039 open Scientist jobs on Olive Jobs, counted October 29, 2026.
- Pay
- This posting$120–150K/yr
- California median$124–175K/yr270 salary ranges
- US median$103–160K/yr1,094 salary ranges
This range's midpoint, $135K, is 10% below the California median midpoint ($150K) — in the middle half of Scientist salary ranges in California.
- Openings
- Olive Jobs lists 431 open Scientist jobs in California and 2,039 across the US. Under 1% of them nationwide are listed as remote or flexible.
- Hiring the most in California
- Genentech32 open
- Amgen26 open
- Cedars-Sinai19 open
- Experience
- Scientist postings that state a minimum ask for 3 years of experience at the median; the middle half ask for 2 to 7 years (1,455 postings).
- Education
- This posting asks for a master's degree; 493 of the 2,039 open Scientist jobs (24%) ask for a master's degree or higher.
Counted across the open, public US postings on Olive Jobs on October 29, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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