Mechanical Engineer, Fluidics/Perfusion jobs in United States
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Until · 4 months ago

Mechanical Engineer, Fluidics/Perfusion

positionSan Francisco, CA
timeFull-time
remoteOnsite
seniorityMid Level
money$120K/yr - $200K/yr
date3+ years exp

Until is a moonshot company focused on organ-scale reversible cryopreservation. The Mechanical Engineer will be responsible for developing perfusion systems, cryoprotectant formulations, and vitrification and rewarming hardware to support this innovative approach to organ preservation.

BiotechnologyLife Science

Responsibilities

Track record of exceptional engineering abilities
Deep understanding of heat and mass transfer principles
Experience designing fluidic systems for perfusion/heat exchangers
High degree of autonomy across full engineering stack: electromechanical design and fabrication, control software, physical modeling
Desire to join a fast-paced, scrappy engineering team

Qualification

Heat transfer principlesFluidic systems designElectromechanical designControl softwarePhysical modelingStartup experienceOrgan perfusion experienceMechanical EngineeringPhysics

Required

Track record of exceptional engineering abilities
Deep understanding of heat and mass transfer principles
Experience designing fluidic systems for perfusion/heat exchangers
High degree of autonomy across full engineering stack: electromechanical design and fabrication, control software, physical modeling
Desire to join a fast-paced, scrappy engineering team

Preferred

3+ years experience/graduate level in Mechanical Engineering, Physics, or equivalent
Experience with organ perfusion in a research or clinical context
Experience working in a startup

Benefits

Generous medical, dental and vision insurance coverage for employees and their dependents
Flexible time off and paid holidays
Competitive compensation package, including salary and equity
Access to a 401(k) retirement savings plan
FSA and commuter benefits
Subsidized lunch daily

Company

Until

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We are building reversible cryopreservation technology to solve the organ procurement and matching problem.
dateFounded in 2021
location
San Francisco, California, USA
people-size11-50 employees
web-link
https://www.untillabs.com

Funding

Current Stage
Early Stage
Total Funding
$106M
Key Investors
Founders Fund
2025-09-22Series A· $58M
2024-06-06Series A· $48M

Leadership Team

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Hunter Davis
Co-founder, CSO
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Recent News

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Until Labs raises $58M to push boundaries of cryopreservation
2025-11-28
Company data provided by crunchbase