Nir Ratner

Nir Ratner currently serves as Foundation Models Tech Lead at Immunai since July 2025. Previous roles include Technical Lead, Senior Algorithm Developer, and Algorithm Developer at AI21 Labs from March 2022 to August 2025. Nir also worked as a Data Scientist at StuffThatWorks from September 2020 to May 2022 and as an Algorithm Developer at Mobileye from August 2017 to August 2019. Additionally, Nir contributed as an Undergraduate Research Assistant at The Hebrew University of Jerusalem from 2015 to 2017, focusing on synapse structure in C. elegans in Zaslaver Lab. Nir's early career included a position as a Junior Software Engineer at Mintigo (now part of Anaplan) from 2013 to 2014. Academic qualifications include a Master of Science in Theoretical and Mathematical Physics from the University of Oxford (2019-2020) and a Bachelor's degree in Physics from The Hebrew University of Jerusalem (2014-2018).