VoxxedDaysFrom developers, For developers
Champion

Geoffrey De smet

Red Hat

Geoffrey De Smet is the founder and lead of OptaPlanner (www.optaplanner.org), the open source A.I. constraint solver in Java that is used across the globe to automatically solve employee rostering, vehicle routing, task assignment, maintenance scheduling and other planning problems.

Badges 8

Talks 8

  1. Devoxx France 2025

    LLMs can't optimize schedules, but AI can!

    April 2025Data & AI

  2. Devoxx Belgium 2023

    Optimize the world for fun and profit

    October 2023Data & AI▶ Watch

  3. Devoxx Poland 2022

    On schedule: Artificial Intelligence plans that meet expectations

    June 2022DevNation Day

  4. Devoxx UK 2022

    Artificial Intelligence planning with OptaPlanner

    May 2022DevNation Day

  5. Devoxx Ukraine 2021

    Artificial Intelligence on Quarkus: I love it when an OptaPlan comes together

    November 2021Big Data & Machine Learning

  6. Voxxed Days Zurich 2019

    A.i. constraint optimization with optaplanner: tsp, vehicle routing and employee rostering

    March 2019Big Data & Machine Learning▶ Watch

  7. Devoxx Belgium 2018

    The battle of 2 automated conference talk scheduling algorithms for devoxx

    November 2018Big Data & Machine Learning▶ Watch

  8. Devoxx Belgium 2015

    False assumptions for the Vehicle Routing Problem

    November 2015Methodology & Culture