Board of Directors
Founders / Advisory Board
Jason Oberg, Ph.D.
Co-Founder and CEO
Dr. Oberg has spent the past 5+ years developing the hardware security technology of Tortuga Logic for his Ph.D. thesis. He has worked in the space of hardware design, field-programmable gate arrays (FPGAs), and embedded systems for equally as long. Jason holds a B.S. degree in Computer Engineering from UC Santa Barbara where he graduated with high-honors, and M.S. and Ph.D. degrees in Computer Science and Engineering from UC San Diego.
Jonathan Valamehr, Ph.D.
Co-Founder and COO
Dr. Valamehr is the COO of Tortuga Logic and is responsible for the business development and commercialization effort of our tools. Before joining the team, he worked in the area of Computer Architecture, and his research revolves around leveraging emerging technologies and cross-disciplinary tools to build secure, high-speed microprocessors. This includes using 3D die-stacking to augment existing processors with security-specific hardware, and using cryptographic techniques to protect a secret key from leaking due to physical inspection attacks. He received his Ph.D. (2013), M.S. (2009), and B.S. (2007) in Electrical and Computer Engineering, all from UC Santa Barbara.
Ryan Kastner, Ph.D.
Dr. Kastner has over 10 years of experience in realm of hardware security. He has served as a principal investigator on various government and industrial grants related to hardware security (over $3 million in toto). This includes the National Science Foundation Innovation Corps award which focuses on commercializing technology from academia. Dr. Kastner is a professor in the Computer Science and Engineering Department at UCSD. His research focuses on computer system design with a focus on critical and real-time applications. He received a PhD in Computer Science at UCLA, a masters degree (MS) in engineering and bachelor degrees (BS) in both Electrical Engineering and Computer Engineering, all from Northwestern University.
Tim Sherwood, Ph.D.
Dr. Sherwood has worked both in industry and academia on hardware security for over a decade. He is a Professor in the department of Computer Science at UC Santa Barbara, specializing in the development of novel computer architectures for security, monitoring, and control. He leads an award-winning research lab focused on these areas, with funding from several major government grants. His work and teaching have both been recognized, as he is the recipient of the 2009 Northrop Grumman Teaching Excellence Award, the NSF Career Award, and the UCSB Academic Senate Distinguished Teaching Award. Prior to joining UCSB in 2003, he graduated with a B.S. in Computer Science and Engineering from UC Davis (1998), and received his M.S. and Ph.D. from UC San Diego (2003).
Mark N. Thomas
Mark N. Thomas serves as the first investor and first advisory board member of Tortuga Logic. He is a proven executive with extensive experience in both financial and profit & loss operating management of private and public companies, particularly in the healthcare and financial services industries. His successful track record of delivering enhanced strategic value through revenue and profit growth can be observed in his past ventures, where he has served as the COO of Career Step (2009-2012), the CFO of IntelliStaf Healthcare (2005-2007), the CFO of Quadramed Corporation (2000-2004), as well as several others. He received his M.B.A. degree from Wharton Graduate School in 1976.