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 Research and Development

  • 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 Clinical Development

  • 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

Describe Your Most Memorable Day at RefleXion:

My most memorable day was a few months into my tenure when one of the founders, explained the business plan to me, including sales aspects, at a detail that I had rarely heard at prior companies. This aspect of mutual trust between us, however, is the norm at RefleXion.

Why RefleXion?

I joined the RefleXion team in February 2017 after reaching out to a colleague who had joined a few months prior. After a full day of interviews, I knew I had found the right place: not only was everyone technically talented, but also personable and welcoming. The camaraderie is palpable and amplified by the progress of seeing a novel radiotherapy system become more functional. In my role as an electrical systems engineer, my goal is to support my engineering team with functional, safe, and reliable electronics in a timely manner. Essential to that goal are the candid engineering discussions built on trust and respect that I find both personally and professionally rewarding.

Jenny Suwan, Ph.D. Principal Quality Engineer

What aspect of your role do you enjoy the most?

The collaborative spirt at RefleXion is inspiring. I enjoy that I can interact and work with different teams, at all levels. We have a unique and passionate culture, where people are able to channel that passion into action and innovation.

Tell us about your education and background:

I graduated with a Ph.D. in Chemical Engineering from USC. After getting my degree, I held various engineering leadership positions in medical device products in Silicon Valley. Some of my past job titles include Failure Analysis Engineer, Process Engineer, Design Assurance Engineer, and Quality Engineer. Additionally, before joining RefleXion in early 2017, I contributed to products such as implantable pacemakers and defibrillators, drug device combination products, robotic catheterization, and surgical robotic systems.

K. Johan Paulsson Senior Software Engineer

Describe your most memorable day at RefleXion:

The day we launched a non-clinical release of our Planning Application to our research partners is my most memorable. Getting actual users to finally test your application is a simultaneously exciting and scary prospect.

Outside of work, how do you spend your time?

When not working, I enjoy spending time in the kitchen cooking food or making a batch of beer. I like to experiment and try new cuisine recipes or cooking methods. Lately, I’ve taken on the challenge of discovering different ways to cook seafood, such as rockfish. I also make full-grain beer where I’m not really going for style as much as I’m trying to make things that aren’t available to buy locally.

Jefferson Coelho Ph.D. Principal Software Engineer

What sets RefleXion apart from other companies you have worked at? OR; What attracted you to RefleXion?

RefleXion's mission certainly attracted my attention and motivated me to apply. During the interview process, I was impressed by the technical strength of the interview team; there was no doubt in my mind the team would deliver and bring the system to market. Since I started, I have been enjoying the collaborative and collegial work environment.

What motivates you?

At the end of the day, my main motivator is RefleXion's mission: to create a new cancer treatment modality, and help people cope with cancer. Helping others has always been a priority to me, and it’s nice to know that my place of work shares those values.

Zhihui Sun Lead CT Engineer / Scientist

Why RefleXion?

RefleXion is using the most advanced and revolutionary technologies available with the goal of treating cancer patients. I love that I get to carry this great mission alongside other passionate, driven, and talented people, facing and solving challenges in this fast-pace workplace.

Tell us about your education and background

Prior to joining RefleXion, I worked as senior image engineer at GE Healthcare, developing image related features for computed tomography systems. Additionally, I have co-authored four publications and have been listed on 10+ patents. My degrees include a B.S. in Electrical Engineering from Shanghai Jiao Tong University, an M.S. in Electrical Engineering from Tsinghua University, and an M.S. in Electrical and Computer Engineering from Johns Hopkins University.

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

Why RefleXion?

After spending many years in the diagnostic imaging world, working at RefleXion offered me the chance to share my technical and clinical expertise in imaging while broadening my career into the realm of radiotherapy where the opportunity to make a real difference in patient care is present every day.
Additional, I’ve discovered what really sets RefleXion apart is the people. It starts with the founders, who have a deep and genuine desire to improve the lives of cancer patients, and who have conscientiously built an outstanding team that shares their vision, passion and values.

What aspects of your role do you enjoy the most?

Working directly with our clinical partners allows me to gain insights into the clinical needs of our end-users while at the same time acquiring a deep appreciation of how the technology we are developing at RefleXion will impact their ability to provide exceptional care to their patients. It makes me feel as if it gives meaning to what we are trying to accomplish and the product we are creating a life of its own.

Sonia Patel Quality Engineer

What attracted you to RefleXion?

I’ve always been drawn to healthcare and when I graduated from Cornell University, I knew I wanted to pursue something which allowed me to help improve people’s lives. When I learned of RefleXion and their mission to revolutionize cancer care, I knew this was something I wanted to be a part of. What made me fall in love with the company, was the team. Along with technical expertise, each person brings creativity, dedication, and humility into their work. With our shared goals, we know we can trust and lean on each other to solve whatever problem that comes our way. I continue to learn something new every day and am grateful to be part of this extraordinary team.

Outside of work, how do you spend your time?

There is so much to do in the Bay Area! I play midfield in an adult soccer league and I also spend a lot of time hiking. There are so many gorgeous trails around here. My favorite hikes are Mt. Tallac in Tahoe and Half Dome in Yosemite National Park, which are only a day trip away from San Francisco. The Bay Area Ridge Trail also has excellent hikes that are closer to the city.

Telly Tan NPI Engineer

Why RefleXion?

RefleXion has a mission to not only treat cancer, but to do it in a cutting- edge way. The way that technologies are being combined has never been done and it’s exciting to see it all take place. I believe that RefleXion is bringing something new to cancer care and I can’t wait to see how it all unfolds.

What aspect of your role do you enjoy most?

Collaborating with all teams to bring our extraordinary product to market by helping with the transfer of R&D into Manufacturing; touching on multiple aspects of operations relating to procurement of materials, inventory management, manufacturing documentation, and assembly. It is incredibly satisfying to see the results of a team effort.

Bijumon Gangadharan Senior Software Systems Engineer

Why RefleXion?

RefleXion has the potential to change the way cancer treatment is delivered in clinics today in combination with drugs. I value RefleXion’s technology as a game changer in the field of radiotherapy benefiting a whole set of new patients who could not have been treated with radiotherapy before. I think it’s a great opportunity for me to learn from a highly talented, qualified team.

What motivates you?

RefleXion inspires me every day. I love the experience of working on software systems that can bring a highly complex treatment device to clinical use and to bring new ways of managing cancer. Furthermore, there are amazing people that work here. They are knowledgeable and dedicated to their work. Also, you can feel that there is a positive, energized atmosphere here that is different than other companies that I have worked with in the past.

Layton Hale, Ph.D. Principal Mechanical Engineer

Why RefleXion?

In engineering school, we were taught the ideas from great mathematicians and scientists, such as Newton, Gauss, and Maxwell. I have been fortunate to work on significant projects which rest on a great idea built upon by countless good ideas and ultimately made real by the knowledge and skill of teams of teams. I was attracted to RefleXion by a great idea and genuine commitment.

Tell us about your education and background:

I have 33 years of experience in precision engineering and manufacturing. Prior to RefleXion, some of my most significant contributions included: stage architecture for the REBL program at KLA-Tencor, designing x-ray optic modules for NuSTAR while at Innovative Machine Solutions, and notable projects at Lawrence Livermore National Laboratory such as EUVL, NIF, XMM, LSST, POGAL and LODTM. Additionally, I invented or co-invented over 9 patents and have written and published around 40 articles. Furthermore, since 1991 I have been a member of the American Society of Precision Engineering. I earned my PhD and MS in Mechanical Engineering from MIT, as well as a Bachelors of Science in Mechanical Engineering from Case Western Reserve University.

Board of Directors

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