Meet the Team



Dr. Akhtar received his PhD in Neuroscience and MS in Electrical & Computer Engineering from the University of Illinois at Urbana-Champaign in 2016, where he holds an NIH MD/PhD Fellowship. Dr. Akhtar received his BS in Biology in 2007 and MS in Computer Science in 2008 at Loyola University Chicago. In 2016, he won the $20000 Illinois Innovation Prize. His research is on motor control and sensory feedback for upper limb prostheses, and he has collaborations with the Bretl Research Group at Illinois, the Center for Bionic Medicine at the Shirley Ryan AbilityLab, the John Rogers Research Group at Northwestern University, and the Range of Motion Project in Guatemala and Ecuador.


Jesse Cornman

Sr. Robotics Engineer

Jesse received his BS in Computer Engineering at the University of Illinois at Urbana-Champaign in 2017. He has won multiple awards for electronics he has designed and manufactured for robotic systems. His work has included the design of pressure sensing systems, robotic control systems, EMG acquisition systems, and tactile feedback mechanisms.



Lead Mechanical Engineer

Sim works on design, analysis, and testing on all aspects of PSYONIC's products and has several years of industry experience in manufacturing. He also co-founded the Illini Solar Car team.


Wenjun (Steven) Sun

Electrical Engineer

Steven is currently studying Computer Engineering at the University of Illinois at Urbana-Champaign and is expected to graduate in 2019. He works on electronics and printed circuit board design for the prosthetic hand. He is also a private pilot.


Jye Sze Lee

Mechanical Engineer/Quality Analyst

Jye Sze works on mechanical design and analysis of components, sourcing, and quality management. She also co-founded the Illini Solar Car team.


Jenny Chu

Mechanical Engineer

Jenny works on design for manufacturing as well as implementing, conducting, and analyzing mechanical tests. She is currently studying Mechanical Engineering at the University of Illinois at Urbana-Champaign and is expected to graduate in 2020.




David Rotter, CPO, LPO

Founder, CEO, Rotter Prosthetics

David is an American Board Certified and Illinois Licensed Prosthetist, Orthotist and Pedorthist with over 20 years of experience. He was formerly the Clinical Director of Prosthetics and Orthotics at Scheck & Siress, where he was also a member of the board of directors. He is also the chairman of the board of APOS central fabrication.


David Krupa, CP, LP

Co-FOUNDER, CEO, Range of Motion Project (ROMP)

David manages and develops ROMP's non-profit clinic sites in Guatemala and Ecuador. ROMP is an award-winning 501(C)(3) organization dedicated to providing a more equitable distribution of prostheses to those who need them worldwide.


Edumund "E.Q." Sylvester

FOUNDER, CEO, Freedom Golf Association

E.Q. is a triple amputee and the founder and chairman of the Freedom Golf Association, a 501(C)(3) charitable organization dedicated to bringing joy and a sense of freedom to the special needs community through their inclusion in the game of golf. Prior to his amputations, E.Q. was an international businessman having worked forty-one years for Rockefeller (IBEC) companies, General Motors Corp., and his own private company.

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Patrick is currently a graduate student in Mechanical Engineering at Stanford University. He received his BS in Mechanical Engineering at the University of Illinois at Urbana-Champaign in 2016. Patrick has worked on the mechanical design of upper limb prosthetic hands and has worked with the Harvard Biodesign Lab. In 2016, he was named one of Forbes 30 under 30 in Healthcare.



Tim Bretl, Ph.D., associate professor, aerospace engineering (2010-2017)

Kyung Yun Choi, MS, aerospace engineering (2015-2017)

Michael Fatina, BS, computer engineering (2014-2017)

Edward Wu, BS, computer engineering (2014-2017)

Jason Lee, BS, mechanical engineering (2015-2017)

Joseph Sombeck, BS, bioengineering (2014-2016)

Daniel Gonzales, BS, electrical engineering (2014-2016)

Alvin Wu, BS, computer engineering (2014-2016)

Jack Moore, BS, mechanical engineering (2015-2016)

Mary Nguyen, MS, aerospace engineering (2013-2015)

Sam Goldfinger, BS, electrical engineering (2014-2015)

Liz Ochoa-Raya, BS, psychology (2014-2015)

Brandon Boyce, BS, aerospace engineering (2012-2014)

Logan Wan, BS, mechanical engineering (2012-2013)



David Krupa, CP, LP, CEO



David Rotter, CPO, LPO, clinical director of prosthetics


AbilityLab - Center For Bionic Medicine

Levi Hargrove, PhD, associate professor, physical medicine & rehabilitation

Northwestern University - Rogers Research Group

John Rogers, PhD, professor, materials science & engineering (2013-present)

Limei Tian, PhD, materials science & engineering (2016-2017)

Howard Liu, PhD, materials science & engineering (2015-2016)

Baoxing Xu, PhD, materials science & engineering (2013-2015)