A former student of the École Normale Supérieure at Fontenay-aux-Roses majoring in Mathematics (option in Probability Theory), she is a Doctor of Information Studies.

[1][2] Plateau is president of the AFDESRI (Association of Women Leaders of Higher Education, Research and Innovation) since September 2014[3] and Allistene (Alliance of the Digital Sciences and Technologies) since November 2014.

[5] She obtained a tenured research position(fr) at the Centre national de la recherche scientifique (CNRS), then taught as a visiting scholar at the University of Maryland in the United States.

In January 2007 Plateau created the Grenoble Informatics Laboratory[7] associated with the French Institute for Research in Computer Science and Automation (INRIA).

[12][1] She has participated in the national scientific bodies CNRS, ANR, INRIA, and the Ministry of Higher Education and Research (MESR).