We believe each and every day at RefleXion is an opportunity to transform cancer treatment and impact the lives of millions of patients around the world.

We are a world-class team of innovative, creative, dedicated and collaborative people who enthusiastically support this mission, and we want like-minded individuals to join us!

Leadership Team

Todd Powell President and CEO

  • 25+ years as oncology innovator and executive
  • Recently EVP of comprehensive oncology solutions at Elekta (business unit with $1B in rev and 1,200 employees)

Samuel Mazin Founder and CTO

  • Ph.D. in Electrical Engineering from Stanford
  • Expert in medical imaging and inventor of RefleXion’s core technology

Akshay Nanduri Founder and VP Business Development

  • First employee and Director of Software at SlipStream (Acquired by BlackBerry)

David Larkin VP Engineering

  • Expert in surgical robotics, mechatronics
  • 14 years building/leading R&D teams at Intuitive Surgical, most recently as VP Engineering

Kathy O’Shaughnessy VP Clinical, Regulatory & Quality

  • 18 years experience for medical devices; Ph.D. in Physics from Stanford
  • 2 PMA approvals, 19 supplements, seven 510(k) clearances
  • Strong background in radiotherapy, imaging and energy platforms

Cal Huntzinger Senior Director of Product

  • 25+ years product management at Varian
  • Introduced major new technologies into clinical practice (MLC, radiosurgery, on-board imaging, treatment planning)

Staff Spotlight

Joe Stark Electrical Systems Engineer

Joe is an Electrical Systems Engineer at RefleXion, responsible for supporting critical interfaces. Joe began his career in 2004 as an Electrical Engineer at Boeing and gained increasing levels of responsibility. Before joining RefleXion, Joe last worked as a Senior Electrical Engineer at LumiGrow, Inc. where he helped draft, design and test a number of products such as controllable LED horticultural luminaries. Joe has an M.Eng in Electrical Engineering from Massachusetts Institute of Technology.

Jenny Suwan, Ph.D. Principal Quality Engineer

Jenny brings 16 years of industry experience in failure analysis and design assurance into her role as a Principal Quality Engineer at RefleXion. Prior to joining RefleXion, Jenny worked as a Senior Design Assurance Engineer at St. Jude Medical Inc. in Sunnyvale, CA and a Staff Quality Engineer at Hansen Medical in Mountain View, CA. She holds a Ph.D. and M.S. in Chemical Engineering from the University of Southern California, as well as a B.S. in Chemical Engineering from Chulalongkorn University in Bangkok, Thailand.

Zhihui Sun Lead CT Engineer / Scientist

Zhihui is a Senior Image Engineer at RefleXion with eight years of experience in developing complex processing algorithms. Prior to joining RefleXion, Zhihui worked as Senior Image Engineer at GE Healthcare, supporting X-ray medical imaging products. She has co-authored four publications and has been listed on 10+ patents. Zhihui holds a B.S. in Electrical Engineering from Shanghai Jiao Tong University, an M.S. in Electrical Engineering from Tsinghua University, an M.S. in Electrical and Computer Engineering from Johns Hopkins University and an M.B.A from Peking University.

Layton Hale, Ph.D. Principal Mechanical Engineer

Layton brings 33 years of experience in precision engineering and manufacturing to his role as Principal Mechanical Engineer at RefleXion. Prior to RefleXion, some of Layton’s more significant contributions included stage architecture for the REBL program at KLA-Tencor and designing x-ray optic modules for NuSTAR while at Innovative Machine Solutions. Layton holds a Ph.D. and M.S. in Mechanical Engineering from Massachusetts Institute of Technology, as well as B.S. in Mechanical Engineering from Case Western Reserve University.

K. Johan Paulsson Senior Software Engineer

Johan is a Senior Software Engineer at RefleXion. Having worked in the ever-evolving world of software engineering, programming, and development over the past decade, Johan joins RefleXion after last working as a Senior Engineer with POC Medical Systems in Livermore, CA. John holds an MASt in Applied Mathematics and Theoretical Physics from the University of Cambridge, a B.Sc in Physics from Lund University, and he completed an ERASMUS in Physics from Queen’s University in Belfast, UK. He also pursued a D.Phil in Computer Science at the University of Oxford.

Telly Tan NPI Engineer

Telly is an NPI Engineer at RefleXion, where he is central to the product development process, collaborating with RefleXion’s many engineering departments to produce detailed product instructions, validate production processes, and troubleshoot product systems and subsystems. Telly holds a B.S. in Industrial Technology - Electronics and Computer Technology.

Angela Da Silva, Ph.D. Translational Research Program Manager

A Ph.D. physicist with 15+ years of professional experience in the diagnostic imaging field, Angela is Translational Research Program Manager at RefleXion. In her current role, Angela oversees the definition, implementation and on-going management of RefleXion’s translational research program. Prior to joining RefleXion, Angela spent almost 10 years at Philips Healthcare in San Jose working as their Senior Manager in Clinical Science. Angela also holds an M.A.Sc. and a B.A.Sc. in Engineering Physics from the University of British Columbia in Vancouver, Canada.

Sonia Patel Quality Engineer

Sonia is a Quality Engineer at RefleXion. A recent graduate of Cornell University with an M.S. in Biomedical Engineering, Sonia started as an Engineering Intern with RefleXion in January 2017. She also holds a B.S. in Bioengineering: Biotechnology from University of California San Diego, where she served three years as an undergraduate Research Assistant for the UCSD Cardiac Mechanics Research Group.

Jefferson Coelho PhD Principal Software Engineer

Jefferson brings more than 15 years of experience in system design and control to his role of Principal Software Engineer at RefleXion. Before joining RefleXion, Jefferson held senior engineering roles at Hansen Medical, where he contributed to the development of the Sensei and Magellan robotic surgery platforms, and Agilent Technologies, where he developed measurement and signal processing algorithms. Jefferson holds an M.S. and Ph.D. in Computer Science from University of Massachusetts, as well as a B.S. in Electrical Engineering from Federal University of Rio de Janeiro.

Bijumon Gangadharan Senior Software Systems Engineer

Biju is a Software Engineer at RefleXion. Formerly a Staff Software Engineer at Siemens Healthcare, Biju studied Software Engineering at the College of Engineering, Trivandrum (CET) in Kerala, India. He is listed on a patent for a dose-guided radiation therapy system using cone beam CT.

Board of Directors & Observers

Scientific Advisory Board

Industry Advisory Board

David Auerbach

Co-founder of IMPAC (acquired by Elekta)

Morry Blumenfeld

Pioneer in medical imaging at GE Healthcare

Lester Boeh

Former VP of Emerging Businesses at Varian Medical Systems

Richard Schmidt, M.S.

Former Chief Engineer at TomoTherapy

George Zdaisuk

Former CTO of Varian Medical Systems