Dr. Vincent Natoli

Founder / CEO


Vin is the President and founder of Stone Ridge Technology. He is a computational Physicist with 20 years experience in the field of High Performance Computing. Previous positions include Technical Director at High Performance Technologies (HPTi) and Senior Physicist at ExxonMobil Corporation, where Dr. Natoli worked for 10 years in both its Corporate Research Lab in Clinton, New Jersey and the Upstream Research Center in Houston, Texas. Dr. Natoli holds Bachelor’s and Master’s degrees from MIT, a PhD in Physics from the University of Illinois Urbana-Champaign and a Masters in Technology Management from the Wharton School at the University of Pennsylvania. Dr. Natoli has worked on a wide variety of applications including reservoir modeling and seismic data processing for the oil and gas industry, molecular dynamics, quantum chemistry, bioinformatics and financial engineering.


M.S. Tech. Mgmt., The Wharton School and U. of Penn.

Ph.D Physics, U. of Illinois Urbana-Champaign

M.S. Engineering, MIT

B.S. Aeronautical and Astronautical Eng., MIT

Mr. David Dembeck

Director of Software Engineering


Dave is Director of Software Engineering at Stone Ridge Technology. Dave has spent 12 years working as a software development engineer and technical leader, working in High Performance Computing problems in computational electromagnetics, financial engineering, and a variety of applications in the Oil and Gas Industry. Dave holds an Honors Bachelor’s degree in Mathematics from the University of Waterloo and a Masters of Computer Science from the University of Calgary.


M.S. Computer Science, University of Calgary

B.S. Hon. B. Math, 2001 University of Waterloo

Dr. Kenneth Esler

Senior Physicist


Ken is an expert in High Performance Computing and numerical simulation, with 19 years of experience in the field.  His previous experience includes post-doctoral appointments at the National Center for Supercomputing Applications and at the Carnegie Institution of Washington.  Dr. Esler holds a bachelors degree in Physics with Electrical Engineering from MIT and a PhD in Physics from the University of Illinois at Urbana-Champaign.  His postdoctoral work included the porting of QMCPACK, a complex quantum Monte Carlo simulation code, to run on GPUs.  For the last five years, he has been focused on increasing the performance of reservoir simulation through the development of fine-grained parallel algorithms and simulation software which runs on GPUs.


Ph.D. Physics, U. of Illinois at Urbana-Champaign

B.S. Physics with Electrical Engineering, MIT

Dr. Karthik Mukundakrishnan

Senior Computational Scientist


Karthik is a senior computational scientist with more than ten years of experience in the area of computational fluid dynamics. Prior to joining Stone Ridge Technology, he was a R&D technology manager at Dassault Systemes Simulia (formerly Abaqus Inc.) where he was a lead developer for Simulia CFD, a widely used commercial finite volume moving-mesh flow solver. Dr. Mukundakrishnan obtained his Bachelor’s degree in Mechanical Engineering from the College of Engineering Guindy (Anna University, India), Masters and Doctorate degrees from the University of Pennsylvania in Mechanical Engineering and Applied Mechanics. Subsequently, Dr. Mukundakrishnan held a postdoctoral research fellowship at Penn Medical School working on the direct numerical simulation of multiphase flows in circulatory systems. Dr. Mukundakrishnan has a vast experience in formulating and developing advanced numerical schemes for strongly coupled nonlinear PDEs using finite element, finite volume, and finite difference methods. His works have been published in leading journals such as Journal of Fluid Mechanics and Physical Review. Dr. Mukundakrishnan also possess strong software development skills using objected oriented programming languages and a keen interest in software engineering practices.


Ph.D. Mechanical Engineering and Applied Mechanics, University of Pennsylvania

M.S.E, Mechanical Engineering and Applied Mechanics, University of Pennsylvania

B.E., Mechanical Engineering , Anna University

Dr. John Shumway

Senior Computational Scientist


John is a computational scientist at Stone Ridge Technology. He has over twenty years of experience in Physics and High Performance Computing. Previous positions include Associate Professor of Physics with tenure at Arizona State University, where he ran a research group in in theoretical nanoscale physics and electronics, Visiting Scientist at Cornell University, and Postdoctoral Researcher at the Department of Energy National Renewable Energy Laboratory in Colorado. Dr. Shumway holds Bachelor’s and Master’s degrees from the University of Missouri and a PhD in Physics from the University of Illinois at Urbana-Champaign. Dr. Shumway has worked on a variety of problems in reservoir modeling for the oil and gas industry, nanoscale electronics, ultra-cold quantum gasses, biological physics, and astrophysics. He advocates for new computer languages and techniques, quality software development, and effectively using computers to understand challenging problems.  He has supervised three Ph. D. candidates and mentored dozens of graduate and undergraduate students in research in physics and related fields.


Ph.D. Physics, U. of Illinois at Urbana-Champaign

M.S. Physics, University of Missouri

B.S. Physics, University of Missouri

Dr. Rajesh Gandham

Computational Scientist


Rajesh holds a Ph.D. in Computational and Applied Mathematics from Rice University. He received his Bachelor’s and Master’s degrees in Aerospace Engineering from Indian Institute of Technology Madras, India. His interests are in developing fast and scalable numerical methods for scientific computing applications. During his Ph.D., he worked as an intern with HyPerComp Inc, Stoneridge technology, and Hess Corporation, where he was involved in developing high-performance industrial software for various applications.


Ph.D. Computational and Applied Mathematics, Rice University

M. Tech. Aerospace Engineering, Indian Institute of Technology Madras

B. Tech. Aerospace Engineering, Indian Institute of Technology Madras

Dr. Reza Ghasemi

Reservoir Engineer


Reza holds a Ph.D. in Petroleum Engineering from Texas A&M University. He received his B.Sc. and M.Sc. in Electrical Engineering from Isfahan University of Technology, Iran. His primary Ph.D. research was on reducing the complexity of large scale reservoir models by applying model order reduction techniques. Prior to Stone Ridge Technology, he worked as a reservoir engineering intern with Halliburton and Calpine, where he was involved in developing tools for modeling and simulation of large scale and complex reservoirs.


Ph.D. Petroleum Engineering, Texas A&M

B. S. Electrical Engineering, Isfahan University of Technology