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Software Engineer, Data

Until

Salary not specified
Aug 21, 2025
San Francisco, CA, US
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Until is building reversible cryopreservation technology for human tissue, focusing on organ-scale cryopreservation to prevent organ loss due to logistics and enable patients to wait for future cures. A key challenge is discovering non-toxic cryoprotectant formulations.

Requirements

  • Demonstrated ability to write modular, maintainable, and performant code in Python
  • Experience with data analysis (Polars, Pandas, NumPy, Matplotlib, Plotly) and fundamentals in math and statistics
  • Experience deploying and maintaining cloud infrastructure (e.g. AWS, GCP) and building software that integrates with these platforms
  • 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 owning software projects end-to-end, from defining requirements to building scalable solutions

Responsibilities

  • building computational and data infrastructure that accelerates our science
  • design and implement data pipelines and automation systems to enable researchers to generate, analyze, and share experimental results seamlessly
  • own projects end-to-end
  • collaborate across disciplines
  • set a high bar for developing code that scales with the team

Other

  • Degree in Computer Science or a related field (Applied Mathematics, Statistics, Data Science)
  • Experience with laboratory automation (liquid handling, robotics)
  • Experience or interest/exposure to biology
  • 3+ years of relevant professional experience, or a graduate degree