He returned to MIT in 2013 to pursue a PhD with the support of the Myhrvold & Havranek Hertz Foundation Fellowship in applied sciences.

[12] In 2010, while still a student at MIT, he co-founded Cerenova, Inc, a spinout from Massachusetts General Hospital Department of Neurosurgery, with noted functional neurosurgeon Emad Eskandar.

[8][12] Following the acquisition, Wentz served as Vice President of Product at Kernel, leading development program in clinical neural interfaces.

[12][15] In August 2018, Wentz announced the establishment and funding of Gradient Technologies, Inc., a venture focused on engineering trust into everyday electronic devices such that "the authenticity and integrity of every electronic device, the software it operates, data it stores and computes, and information itself, are provable qualities by construction, not by trust in a third party".

[14] In 2012, Wentz received the Myhrvold & Havranak Family Hertz Foundation Fellowship in applied sciences to pursue a PhD at MIT.