Julien Barbier
About Julien Barbier
Julien Barbier is a Staff Engineering Program Manager at Criteo, with extensive experience in program and project management roles at BNP Paribas and Sopra Steria.
Current Position at Criteo
Julien Barbier currently holds the position of Staff Engineering Program Manager at Criteo. He has been working with the company since 2019, managing significant infrastructure programs. His role includes overseeing data center operations, implementing space-saving initiatives, and preparing for the festive season. Barbier played a crucial role in managing the data center closing and migration of several petabytes of data during 2020/2021.
Previous Roles at BNP Paribas
Before joining Criteo, Julien Barbier worked at BNP Paribas in various capacities. From 2015 to 2019, he was a Program Manager for Big Data and later managed web and mobile initiatives for hellobank.fr and mabanque.bnpparibas from 2013 to 2015. Additionally, he managed the internet and mobile stream for retail banking at Hellobank.fr from 2012 to 2013. His roles also included a tenure as Global Project Manager from 2011 to 2014.
Early Career at Sopra Steria
Julien Barbier started his career at Sopra Steria, where he held several positions from 2003 to 2010. He served as a Software Developer and later took on roles such as Deputy Project Manager and Offshore Project Manager. His responsibilities included managing global projects and coordinating offshore teams, particularly with AGEFOS-PME and ANPE (New Pôle Emploi). His experience at Sopra Steria laid a strong foundation in project management and software development.
Educational Background
Julien Barbier has a robust educational background in Computer and Information Sciences. He earned a Master’s degree (Bac +5) from Université Pierre et Marie Curie (Paris VI) in 2003. Prior to that, he completed a Bac +4 (Maîtrise informatique) and a Bac+3 (Licence) in Computer Science from Université Denis Diderot (Paris VII) between 2000 and 2002. He also holds a Baccalauréat scientifique from Lycée Notre Dame de France, obtained in 1996.
Key Projects at Criteo
Julien Barbier has managed several key projects during his tenure at Criteo. As part of his role, he coordinated the closing and migration of data centers, successfully handling petabytes of data in 2020/2021. He also served as a guild member of the Hadoop resources committee and led the Data Governance Group within the SRE department from 2019 to 2021. His focus on the 'Less is more' principle demonstrates his commitment to optimizing resource usage.