Our Corporate Management

Hudong Chen, PhD 

Senior Vice President, Chief Scientific Officer

Dr. Chen joined Exa in 1993 and has been our Chief Scientist since 1997 and Vice President of Physics since 2000. Prior to his tenure at Exa, Dr. Chen was a visiting assistant physics professor at Dartmouth College and a postdoctoral fellow at Los Alamos National Laboratory. Dr. Chen has a Ph.D. in Physics from Dartmouth College, a M.S. in Physics from the College of William and Mary, and a B.S. in Physics from Fudan University in China. Dr. Chen is known for his pioneering work in lattice Boltzmann methods as well as contributions in turbulence and kinetic theory. Dr. Chen has been a Fellow of the American Physical Society since 2000.

Dr. Chen is an adjunct professor at Boston University and was a visiting full professor in 2011 at Harvard University where he taught a course on advanced kinetic theory-based method for fluids.


James Hoch 

Senior Vice President, Software Development

Mr. Hoch first joined Exa in 1993 and has been Vice President of Software Development since rejoining the company in 1999. He was promoted to Senior Vice President in 2013. Prior to joining Exa, Mr. Hoch was the lead architect on several research parallel computer systems and related compiler projects at Sandia National Laboratories. Mr. Hoch was also chief architect at Maker Communications, a developer of network communications processors. Mr. Hoch is known for his extensive expertise and achievements in developing computer aided engineering software, as well as parallel computing and compiler technology. He also sits on industrial advisory boards focused on high performance computing.

Mr. Hoch holds both M.S. and B.S. degrees from Purdue University in Computer and Electrical Engineering.


Jean-Paul Roux

Senior Vice President, Global Aerospace, EU Operations

Mr. Roux joined Exa in 2001 as our managing director for Southern and Western Europe. In April 2003 Mr. Roux assumed the position of Vice President of European Operations. Prior joining to Exa, Mr. Roux was Managing Director of Tecnomatix UK, a provider of product lifecycle management software, and its Scandinavian subsidiary. Mr. Roux has extensive experience selling software solutions to engineers in the manufacturing, electronics, automotive, aerospace and off-highway equipment industries.

Mr. Roux holds a language degree from Catholic University and a business degree from Ecole Superieure de Commerce in Grenoble, France.


Ales Alajbegovic, PhD

Vice President, Ground Transportation Applications

Dr. Alajbegovic first joined Exa in 1996. He rejoined the company in 2005 as the Director of Thermal Management Applications. He became Vice President of Ground Transportation Applications in 2013 after a continuous increase of responsibilities. He was Team Leader for CFD and Multiphase Development at AVL from 1997 to 2003. From 2003 to 2005 he was the Lead Research Scientist at General Dynamics. Dr. Alajbegovic has extensive experience in Computational Fluid Dynamics and development of industrial applications. He currently serves as the Chair of Thermal Management Activities at SAE International.

Dr. Alajbegovic holds the Dipl. Ing. degree in Mechanical Engineering from University of Ljubljana and Ph.D. in Engineering Physics from Rensselaer Polytechnic Institute.


David Freed, PhD

Vice President, Oil & Gas

Dr. Freed started his tenure at Exa in 1997 with the Physics team, contributing to Exa’s LBM flow physics technology foundation.  In 2004, Dr. Freed was appointed to Director, Industrial Consortia, to manage advanced technology development projects with strategic industry partners.  In 2006, Dr. Freed took the position of Director, Aeroacoustics Applications, leading the solution development and global deployment of Exa’s aeroacoustics application suite.  Dr. Freed was later promoted to Senior Director, Aeroacoustics Applications, then Managing Director, Aeroacoustics and Complex Fluids Applications, and in 2013 was promoted to his current role as Vice President to head up Exa’s Oil and Gas Division.

Dr. Freed holds a B.S. Double in Chemical and Nuclear Engineering from University of California, Berkeley, and a Ph.D. in Nuclear Engineering from MIT where he worked under Prof. Kim Molvig, one of Exa’s founders.  Dr. Freed is an author on dozens of technical papers on computational aeroacoustics, Lattice Boltzmann physics, and porous media simulation.


Kazuhito Ishikawa

Vice President, Asia Sales

Mr. Kazuhito Ishikawa joined Exa in 2005 as a managing director for Japan and was promoted to Vice President of Asia sales in 2013. Mr. Ishikawa started his career in Recruit Co. ltd as a fluid dynamics simulation engineer and then launched CD-Adapco Japan with his colleagues. At CD-Adapco he was responsible for Western Japan sales and eventually lead the entire engineering services team in Japan. Mr. Ishikawa also managed CD-Adapco's IT division and CAE software development & system integration team. Due to these wide ranging responsibilities, he gained extensive experience in the sales and marketing of engineering software, Computational Fluid Dynamics, management of IT, software development and system integration.

Mr. Ishikawa holds a master degree of engineering from Nagoya University in Japan.


Swen Nölting, PhD

Vice President, Aerospace

Dr. Nölting joined Exa in 1998 as the sales manager for Central Europe and in 2002 assumed the position of Managing Director of Industrial Consortia. Since 2007 Dr. Nölting has been leading Exa’s aerospace business unit first as Managing Director and since 2013 in the position of Vice President Aerospace with responsibility for business development, sales, and application development for the aerospace industry world-wide. Prior to Exa Corporation, Dr. Nölting was the Managing Director and Co-founder of ICS GmbH and was a research assistant at the Institute for Computation Applications at the University of Stuttgart.

Dr. Nölting holds a Ph.D. in aerospace engineering from the University of Stuttgart, an M.Sc. in mechanical engineering from the University of Arizona as well as a Vordiplom in mechanical engineering from the Technical University of Aachen in Germany.


Armin Lohwasser

Vice President Sales DACH+
Mr. Lohwasser joined Exa in 2004. Prior to that, he held management positions in consulting services for the European supply chain industry and automotive OEMs at Tecnomatix Germany (now Siemens PLM), a provider of product lifecycle management and simulation software. Mr. Lohwasser brings far-reaching knowledge in selling and deploying complex, multi-disciplinary engineering solutions in the international manufacturing, automotive and off-highway equipment industries.
Mr. Lohwasser holds a Master of Arts in Linguistics from the University of Tübingen, a Master of Business Administration from Reutlingen University and a Master of Science in Computer Science from the University of Bamberg.