Since the beginning of 2020, Jean-Marc is the Chief of Staff of the Innovation and Strategy Division at Atos. In addition, since mid-2018, Jean-Marc has been also elected as Chair of the Board of the European Processor Initiative (EPI).
Prior to that, Jean-Marc Denis took different positions in the HPC industry.
After five years of research in the development of new solvers for the for Maxwell equations at Matra Defense (France) as mathematician from 1990 to 1995, Jean-Marc Denis had several technical position in the HPC industry between 1995 to 2004 from  HPC pre-sales to Senior Solution Architect.
Since mid if 2004 Jean-Marc has worked at Bull SAS head Quarter (France) where he has started the HPC activity. In less than 10 years, the HPC revenue at Bull exploded from nothing in 2004 to 200M€ in 2015, making Bull the undisputed leader of the European HPC industry and the fourth in the world. From 2011 to the end of 2016, Jean-Marc has leaded the worldwide business activity with the goal to consolidate the ATOS/Bull position in Europe and to make ATOS/Bull a worldwide leader in Extreme Computing with footprint in Middle-East, Asia, Africa and South America.
From 2018 to 2020, Jean-Marc has been the head of Strategy and Plan at Atos/Bull, in charge of the global cross-Business Unit Strategy and of the definition of the 3 years business plan.
In 2016 and 2017, Jean-Marc has been in charge of the definition of the strategy for the BigData Division at ATOS/Bull. In his position, his role is to define the global approach for the different BigData business lines covering HPC, Legacy (mainframe), Entreprise computing, DataScience consulting and Software.
In parallel to his activities at ATOS/Bull, since 2008, Jean-Marc Denis has taught “Supercomputer Architecture” concepts in Master 2 degree at the University of Reims Champagne Ardennes (URCA), France.
Education

• Masters degree in Mathematics (U. of Tours, France, 1989)
• Masters degree in Computer Science (U. of Toulouse, France, 1990)
• Engineering diploma in Computer science, (ENSEEIHT, Toulouse, France, 1990)