GAMS [ Home | Downloads | Documentation | Solvers | APIs | Tools | Model Libraries | Resources | Sales | Support | Contact Us | Search ]

On January 11, 2016 Alex Meeraus stepped down as President of GAMS Development Corp. to assume his new role as GAMS' senior adviser. He will also continue serving as a member of the Board. We thank him for the inspired leadership and caring guidance he has shown in taking GAMS from its founding in 1987 to the position it enjoys today. The example he set in establishing GAMS' culture of service and excellence has been, and will continue to be, a benefit to all.

Stepping into his new role as President of GAMS Development is Steve Dirkse, who will form our new management team with Michael Bussieck and Franz Nelissen. This management change coincides with a change in ownership at GAMS. Together Steve, Michael, and Franz have more than 60 years of experience at GAMS, in a wide variety of roles. They look forward to building on the foundation Alex established over the past three decades, and guiding GAMS' evolution to meet our customers' future needs.

The GAMS Management Team

Michael Bussieck

Michael Bussieck

Dr. Michael Bussieck has a PhD in Mathematics from Technical University of Brunswick, Germany. He worked from 1998 to 2004 at GAMS Development in Washington DC, USA as a senior optimization analyst. Since 2004 he has also been a managing partner of GAMS Software GmbH, leading the GAMS software development group. In addition to his development responsibilities, he frequently engages in customer optimization projects that deliver cutting-edge optimization technology to clients from industry (energy, automotive, and chemical), the military, and government throughout Europe and the US.

Michael has published in many first class optimization journals, frequently gives lectures at international conferences, and leads the academic outreach program at GAMS. He also serves as a member in the advisory board of the German OR Society.

Steve Dirkse

Steve Dirkse

Dr. Steven Dirkse received his PhD in Computer Science from the University of Wisconsin-Madison in 1994. After a year of teaching math and CS at Calvin College, he joined the staff at GAMS Development in 1995, becoming Director of Optimization in 2003 and President in 2016. His primary focus has been in software development, notably solvers and solver links, data utilities, multi-threading, and quality control and performance testing. He has also consulted on optimization projects with several GAMS clients during this time.

Steve has published in many leading journals, gives lectures at conferences, and is an active member of the community: e.g., he is a past Director and current Secretary/Treasurer of the INFORMS Computing Society. As part of his thesis research he developed the PATH solver for Mixed Complementarity Problems (MCP), a robust, large-scale solver that was a great leap forward in solving MCP. For the work on the PATH solver he was awarded the Beale-Orchard-Hayes Prize in 1997.

Franz Nelissen

Franz Nelissen

Dr. Franz Nelissen has a PhD in Agriculture from the University of Giessen, Germany, and is a Certified Project Management Associate (GPM). Franz started working for GAMS in 1995 and was appointed to GAMS' Development Board of Directors in 2010. Over the course of his career, Franz has worked with customers in government, academia and commercial markets, has consulted on optimization projects worldwide, and is responsible for business development and international project management.

Franz is co-founder and managing partner of GAMS Software GmbH, which received the company award of the German Society of Operations Research (GOR) in 2010.