Axo Neurotech
Careers · Palo Alto, CA

Biology Intern - Cell Culture & Biointerfaces

Biology · Internship

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We are looking for a Summer 2027 Biology Intern to join our awesome team. This is a high-ownership role. You will run cell culture and lab experiments day to day, and help improve the methods behind them. Your data feeds directly into how we design our devices and their biological interface. You will work closely with our biointerface, neuroengineering, fabrication and preclinical teams in our Palo Alto lab.

What You’ll Do

  • Maintain mammalian cell cultures: feed, passage, count, freeze and thaw cells
  • Prepare media, surface coatings
  • Stain and image cells with brightfield and fluorescence microscopy
  • Measure cell viability, coverage and shape with image analysis tools
  • Help run in vitro electrophysiology experiments
  • Work with the device and EE teams to turn biology results into design changes

What We’re Looking For

  • Must be authorized to work in the U.S.
  • Minimum 12-week commitment, full-time, on-site in Palo Alto
  • Current Bachelor’s or Master’s student in Biology, Bioengineering, Neuroscience, Molecular Biology or a related field
  • At least one semester of hands-on mammalian cell culture in a research lab or past internship
  • Great aseptic technique and safe work in a biosafety cabinet
  • Basic microscopy skills
  • Ability to follow protocols exactly and to spot when a result looks wrong
  • Strong attention to detail and experimental rigor
  • Comfortable working in a fast-paced, ambiguous startup environment

Nice to Have

  • Culture of primary cells or stem cells, including differentiation
  • Immunostaining and confocal microscopy
  • Cell–material work with hydrogels, ECM coatings or other surface treatments
  • Electrically active cells, or recording on multi-electrode arrays (MEAs)
  • Experience with AAV or lentivirus transduction assays
  • Histology: tissue sectioning and staining
  • Rodent handling
  • Basic data analysis in Python, MATLAB or ImageJ

What You'll Get

  • Hands-on lab work where biology meets electronics
  • Mentorship from experienced scientists and engineers
  • Your own experiments, from plan to result
  • Opportunities to contribute to meaningful projects impacting real patients

Why Join Us

At Axo Neurotech, you’ll be joining a team that believes in bold ideas, scientific rigor, and the power of interdisciplinary collaboration. We’re creating the tools that will define the future of neurotechnology - and we’re just getting started.