Embedded Software Intern (Winter 2026)

About This Role

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 time-critical challenge, we’re laying the foundation for medical hibernation: pausing molecular motion to give patients a bridge to future cures.

To achieve our goal, we are assembling an interdisciplinary team to develop perfusion systems, cryoprotectant formulations, controlled-rate freezers, and vitrification and rewarming protocols for human tissue. We are also building out our medical hibernation team to tackle the challenges of whole-body cryopreservation, beginning with rodent models.

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 Embedded Software Engineering Intern at Until, you’ll build the software and firmware that supports our scientific instruments and medical devices, from microscopes to cooling and rewarming systems. You will own projects end-to-end, collaborate across disciplines, and set a high bar for developing systems that scale with the team.

About You

Currently pursuing or recently completed an undergraduate or graduate degree in Electrical Engineering, Computer Engineering, Computer Science, Physics or a related field.

Able to work for 3-4 full months full time and in person, from January - May 2026.

Demonstrated ability to write modular, maintainable, and performant code in Python and C/C++.

Experience writing embedded software / firmware for robotics, microcontrollers, and/or real time controls.

Experience working with analog and digital circuits.

Strong understanding of computer science fundamentals, including algorithms, operating systems, and concurrency.

Proficient with developer tooling, including Linux command line, Git, and shell scripting.

Ability to think from first principles and tackle complex, cross-disciplinary problems with other scientists and engineers.

Track record of building end-to-end software and hardware projects, whether through past internships, research experience, or a personal project portfolio.

Preferred Qualifications

Fundamentals in a core scientific field (physics, biology, chemistry).

Experience in designing and debugging custom PCBs.

Experience working with FPGAs and programming in VHDL/Verilog.

Ready to Apply?

Join our team and be part of the future of medicine and technology.

Apply for Embedded Software Intern (Winter 2026)