Jean-François Baffier is a senior researcher at Internet Initiative Japan (IIJ). In his role as a researcher, he contributes to society through fundamental research in computer science supplemented by open-source libraries and software.

Jean-François received his Ph.D. from the University of Tokyo after graduating from the Master course at the University Paris-Sud. He was a member of the ERATO Kawarabayashi Large Project in Tokyo and Sendai, a JSPS-CNRS research fellow hosted at the Tokyo Institute of Technology (Japan), and a postdoctoral researcher at the RIKEN Center for Advanced Intelligence Project (AIP). From October 2011 to August 2018, he was a member of the JFLI.

His newest research project aims to develop a semi-automated optimization framework that eliminates the tradeoff between ease of modeling and solving efficiency. Furthermore, he is working on the analysis of information networks, smart compression for high-scalability data structures, and explainable artificial intelligence. Other topics of interest include modeling failures and routing in networks, game analysis, and AI for games.

Jean-François made this website using a simple content file and the StaticWebPages.jl package. You can find further software related to the Modern Academics project on Humans of Julia's Discord server.

Compressed Stack Flow of Knowledge


  • 2021 current


    IIJ Innovation Institute Inc. ─ Dynamic Optimization

  • 2021

    Assistant Professor

    The University of Tokyo, Graduate School of Information Science and Technology, Department of Computer Science

  • 2020


    Data Science and Optimization

  • 2019 2021

    Postdoctoral Researcher

    RIKEN Center for Advanced Intelligence (AIP)

  • 2017 2019

    International Research Fellow

    Japan Society for the Promotion of Science (hosted at the Tokyo Institute of Technology)

  • 2015 2017

    Postdoctoral Researcher

    National Institute of Informatics (JST-ERATO Kawarabayashi Large Graph Project)

  • 2012 2014

    Teaching Assistant

    The University of Tokyo

  • 2009 2010

    Mathematics Teacher

    Junior High-School (French Ministry of Education)


  • Ph.D. 2015

    Ph.D. of Information Science

    The University of Tokyo

  • M.Sc. 2011

    Master of Science (Informatics)

    Paris-Sud University

  • 2008 2009

    Visiting Master Student

    Paris-Diderot University

  • B.Sc. 2007

    Bachelor of Informatics-Mathematics

    Paris-Sud University

  • 2003 2005

    Higher School Preparatory Classes (Sciences)

    École nationale de chimie physique et biologie de Paris (ENCPB)

  • Bac. 2003

    Baccalauréat of Science

    Lycée Louis-le-Grand