Scientist (Organ Perfusion)

Until; San Francisco (CA); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Opportunity for outsized impact

Generous medical, dental and vision insurance

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

Job summary

A leading biotech firm in San Francisco is seeking a Scientist to join their organ preservation team. This role involves applying knowledge in perfusion and preservation techniques to advance large organ cryopreservation efforts. The ideal candidate will have a graduate degree or significant industry experience, with a passion for novel scientific discovery. Benefits include competitive compensation, comprehensive insurance, and flexible time off.

Qualifications

• Graduate degree (Masters, PhD) in biology or related field, or ~3 years experience in scientific discovery.
• Demonstrated passion for problem solving and exploration of novel topics.
• Desire to work in a laboratory setting.

Responsibilities

• Perform pig and rat organ isolation and ex-vivo evaluation protocols.
• Develop protocols and assays.
• Evaluate health of organs following cryopreservation.
• Prepare equipment and supplies for experiments.
• Ensure accurate sample processing and data reporting.

Skills

Independent scientific discovery

Rapid problem solving

Experimental protocol development

Agency and passion for discovery

Education

Graduate degree in biology or related field

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

Salary: $120,000 - $150,000 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.

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.