Hello, I'm

Lilian Hunout

Machine Learning Engineer @ Criteo

Contact Me

Skills & Technologies

A showcase of the technologies and tools I work with

Python

Python

SQL

SQL

Scala

Scala

C

C

MATLAB

MATLAB

PyTorch

PyTorch

Lightning

Lightning

Hugging Face

Hugging Face

TensorFlow

TensorFlow

Scikit-learn

Scikit-learn

OpenCV

OpenCV

Gradio

Gradio

PySpark

PySpark

Ray

Ray

Apache Hadoop

Apache Hadoop

CUDA

CUDA

Python

Python

SQL

SQL

Scala

Scala

C

C

MATLAB

MATLAB

PyTorch

PyTorch

Lightning

Lightning

Hugging Face

Hugging Face

TensorFlow

TensorFlow

Scikit-learn

Scikit-learn

OpenCV

OpenCV

Gradio

Gradio

PySpark

PySpark

Ray

Ray

Apache Hadoop

Apache Hadoop

CUDA

CUDA

Python

Python

SQL

SQL

Scala

Scala

C

C

MATLAB

MATLAB

PyTorch

PyTorch

Lightning

Lightning

Hugging Face

Hugging Face

TensorFlow

TensorFlow

Scikit-learn

Scikit-learn

OpenCV

OpenCV

Gradio

Gradio

PySpark

PySpark

Ray

Ray

Apache Hadoop

Apache Hadoop

CUDA

CUDA

Work Experience

My professional journey and key achievements

Criteo logo

Criteo

Apr. 2024 ‑ Current
Paris, France

Machine Learning Engineer II

Oct. 2025 - Current

  • Reco Models team
  • Designed and managed end-to-end ML pipelines for recommendation sources (retargeting and contextual), including data preparation with lineage tracking, model training, and automated deployment
  • Implemented state-of-the-art models with novel feature engineering and user modeling approaches for improved retrieval performance
  • Configured A/B tests at scale (up to worldwide traffic), conducted statistical analysis, and managed production server pools for high-traffic environments
  • Acted as on-call engineer to troubleshoot critical issues in offline and online production systems
  • Mentored engineers and created comprehensive documentation to foster team knowledge sharing

Machine Learning Engineer

Oct. 2024 ‑ Sep. 2025

    Machine Learning Research Intern (AI Lab)

    Apr. 2024 ‑ Sep. 2024

    • Reco Research team, supervised by David Rohde
    • Subject: Optimizing Onsite Display Advertising through Deep Learning
    Atos logo

    Atos

    Feb. 2023 - Aug. 2023
    Grenoble, France

    AI & Computer Vision Research Intern (BDS - CV Lab)

    Feb. 2023 - Aug. 2023

    • European project PREVENT PCP
    • Detection of abandoned luggage in video streams to improve station safety and limit false alerts
    • Implementation of score-based object/owner association algorithms, object tracking and re-identification
    MBDA logo

    MBDA

    Apr. 2022 - Sep. 2022
    Bourges, France

    Embedded AI Intern (Open Lab)

    Apr. 2022 - Sep. 2022

    • Implementation of communication protocols, creation of an embedded Linux image on a Xilinx Zynq card, setting up a Vitis AI Docker environment, model benchmarking

    Education

    Academic background and degrees

    Ecole Normale Supérieure Paris‑Saclay logo

    Ecole Normale Supérieure Paris‑Saclay

    Sep. 2023 - Sep. 2024
    Paris, France

    MSc in Mathematics, Vision, Apprentissage (MVA)

    • World's leading #1 university in Mathematics (ARWU)
    • Courses: Deep Learning (theory and practice), Computer Vision, Object Recognition, Reinforcement Learning, Time Series Analysis, Natural Language Processing, Speech Processing, Convex Optimization, Probabilistic Graphical Models, Deep Generative Models, Signal Processing
    • Representative of a class of 250+ students
    INSA Centre Val de Loire logo

    INSA Centre Val de Loire

    Sep. 2018 - Sep. 2023
    Bourges, France

    MEng in Industrial Systems

    • Courses: Statistical Theory and Methods, Machine Learning, Computer Vision, Complex Systems Engineering, Risk Management
    • Student representative, active participation in various events (student council campaign, open days, etc.)
    University of Tours logo

    University of Tours

    Sep. 2022 - Sep. 2023
    Tours, France

    MSc in Applied Physics (Double Degree)

    • Courses: Automatics, Robotics, Cyber‑Physical Systems, Multiphysics Modelling
    Tallinn University of Technology logo

    Tallinn University of Technology

    Sep. 2021 - Jan. 2022
    Tallinn, Estonia

    School of Information Technologies (Erasmus)

    • Courses: Data Mining, Machine Learning, System Programming, Embedded Systems

    Projects

    Some academic and research projects

    ENS Paris‑Saclay

    Paris, FranceFall 2023 ‑ Winter 2024

    Challenge Data Qube Research & Technologies (Collège de France)

    Implementation of a football match results prediction model

    Contrastive Learning for Molecular Retrieval

    Implementation of a contrastive learning technique to enable the retrieval of molecules from natural language queries

    Automating Video Segmentation

    Automating video segmentation with "Segment Anything Meets Point Tracking"

    Deep Temporal Clustering

    Partial reimplementation of the paper "Deep Temporal Clustering: Fully Unsupervised Learning of Time‑Domain Features", analysis and testing

    INSA Centre Val de Loire

    Bourges, FranceSpring 2022

    PRISME Laboratory

    Detection and tracking of micro‑scale magnetic robots on an ultrasound dataset (medical applications)

    TalTech Embedded AI Research Lab

    Tallinn, EstoniaWinter 2022

    ML for Embedded Systems Course

    Implementation of a garage door cycle detection model from an accelerometric data set on an STM32 board with X‑CUBE‑AI. Award: first prize 250€

    First Prize - 250€

    About Me

    Get to know more about my journey and what I bring to the table

    My Story

    I'm a passionate Machine Learning Engineer with expertise in recommendation systems, computer vision, and deep learning. I create innovative solutions that solve real-world problems in advertising and AI, currently working at Criteo as a Machine Learning Engineer II.

    My journey in tech started with a curiosity about how things work, which quickly evolved into a deep passion for building software that makes a difference. I believe in continuous learning and staying up-to-date with the latest technologies and best practices in machine learning and AI.

    I enjoy playing sports, traveling abroad to discover new cultures, and playing video games.

    Machine Learning Expertise

    Expertise in recommendation systems, computer vision, and deep learning

    Production ML Systems

    Experience in designing and managing end-to-end ML pipelines for high-traffic production environments

    Research & Innovation

    Academic background from ENS Paris-Saclay (MVA) with focus on novel ML approaches and state-of-the-art models

    Big Data & Scalability

    Proficient in Apache Spark, PySpark, Ray, and distributed computing for large-scale machine learning applications