Jiheun Ryu is an Optical Engineer at Neuralink since November 2021, bringing a strong background in research from positions as a Research Fellow at Massachusetts General Hospital and Harvard Medical School from September 2017 to October 2021. Jiheun Ryu earned a Doctor of Philosophy in Mechanical Engineering from the Korea Advanced Institute of Science and Technology, completing the degree in 2017, and previously obtained a Bachelor's degree in Mechanical Engineering from the same institution in 2012.