She is one of the world’s top experts in Big Data, Cybersecurity, and Technological Innovation

Sophie Proust

CTO, Atos, Paris, France

Why you should listen

As technology continues to disrupt the norms, Sophie Proust ensures that the clients of Atos Group can keep up with the changing times.

She is shaping industries from Aerospace, Chemicals, Central Governments, Defense and many more through designing and implementing their technological transformations.

A true innovator, she headed the Tera100 Project in 2010 which produced the first Petaflops- scale calculator in Europe for the French company CEA, a major player in research, development, and innovation.

As part of the Atos Quantum Advisory Board, Sophie has worked with former-France Minister Thierry Breton and Nobel Peace Prize 2012 Awardee Serge Haroche.

She has also been a member of the Board of Directors for electronic payment provider Worldline and Universite Technologique de Troyes.

Meet Sophie at the Blockchain Track at Worldwebforum 2020.

About Atos

Atos is a global leader in digital transformation with over 110,000 employees in 73 countries and annual revenue of over € 11 billion. European number one in Cloud, Cybersecurity and High-Performance Computing, the Group provides end-to-end Orchestrated Hybrid Cloud, Big Data, Business Applications and Digital Workplace solutions.

The group is the Worldwide Information Technology Partner for the Olympic & Paralympic Games and operates under the brands Atos, Atos Syntel, and Unify. Atos is a SE (Societas Europaea), listed on the CAC40 Paris stock index.
The purpose of Atos is to help design the future of the information technology space.

Its expertise and services support the development of knowledge, education as well as multicultural and pluralistic approaches to research that contribute to scientific and technological excellence. Across the world, the group enables its customers, employees and collaborators, and members of societies at large to live, work and develop sustainably and confidently in the information technology space.


Sophie has been the Chief Technology Officer (CTO) of Atos since January 2019. She joined the Atos group in 2014 following the acquisition by Atos of Bull, where she held the position of Head of Research & Development. At Atos, Sophie was head of the Research & Development for the Big Data & Cybersecurity division, from 2014 to January 2019.

Alongside this, Sophie is part of the Atos Quantum Advisory board, chaired by Thierry Breton with Serge Haroche (Nobel 2012). Before Atos, Sophie held various technical managerial positions at Bull in the mainframe, IT administration solutions and HW server design.

In 2010, Sophie headed the Tera100 Project which delivered the CEA with the first Petaflops-scale calculator in Europe. She has been a member of the board of directors of Worldline since December 2016 and a member of the board of directors of the Université Technologique de Troyes (UTT) since December 2018. Sophie Proust is a graduate of the Ecole Supérieure d’Electricité “Supélec” of Paris.