As an engineer on the hibernation team, you will develop hardware and software for cryopreservation systems, focusing on mechanical and electrical design.
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, 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
As an engineer on the hibernation team, you'll be building N-of-1 hardware and software stacks to cryopreserve whole organisms. This requires the ability to own mechanical design and fabrication, electrical design and bringup, and software architecture and development. If successful, you will be the principal engineer to demonstrate the feasibility of whole body reversible cryopreservation in rodents.
About you
- 3+ years of relevant engineering experience
- Mechanical design and fabrication experience (rapid prototyping, 3D printing, etc)
- Experience designing electrical circuits from protoboard to PCB
- Experience with object oriented programming in C++/python
- Eager to integrate into a neuroscience/biology group irrespective of past experience
- Track record of exceptional engineering
- Desire to join a small, fast paced team on an excellent adventure
Preferred Qualifications
- Experience with fluidic circuits (heat exchange, perfusion, etc.)
- Experience working in a research biology context
Until Labs San Francisco, California, USA Office
San Francisco, California, United States
Similar Jobs
Cloud • Security • Software • Cybersecurity • Automation
Design and implement backend and real-time features in the GitLab monolith for portfolio planning at scale. Optimize PostgreSQL performance, evolve APIs (GraphQL/REST), build capacity planning and work-item hierarchies, create proofs of concept, maintain automated tests, support safe rollouts with feature flags and observability, mentor contributors, and participate in on-call and production troubleshooting.
Top Skills:
ClickhouseElasticsearchFeature FlagsGitlabGraphQLGraphql SubscriptionsPostgresPythonRestful ApisRubyRuby On Rails
Big Data • Fintech • Mobile • Payments • Financial Services
Lead product strategy for Affirm's 1:Many distribution partnerships, owning partner portfolio and building repeatable integration capabilities. Define roadmaps, prioritize features, develop success metrics/OKRs, and partner with commercial, design, analytics, and engineering to launch and scale platform partner integrations that drive merchant growth.
Top Skills:
Figma
Cloud • Fintech • Food • Information Technology • Software • Hospitality
As a Staff Software Engineer, you'll lead a team in developing and delivering scalable software solutions for employee management in the restaurant industry, focusing on enhancing customer and employee experiences.
Top Skills:
GraphQLJavaKotlinReactRestTypescript
What you need to know about the San Francisco Tech Scene
San Francisco and the surrounding Bay Area attracts more startup funding than any other region in the world. Home to Stanford University and UC Berkeley, leading VC firms and several of the world’s most valuable companies, the Bay Area is the place to go for anyone looking to make it big in the tech industry. That said, San Francisco has a lot to offer beyond technology thanks to a thriving art and music scene, excellent food and a short drive to several of the country’s most beautiful recreational areas.
Key Facts About San Francisco Tech
- Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Google, Apple, Salesforce, Meta
- Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
- Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
- Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine



