Joachim is a marketplace architect, data scientist and ML/AI strategist. He is founder of the consultancy Ansible Marketplace Architecture.

Work

  • ML Strategy and Product, Retrieval, Engagement And Conversion Modeling → Pinterest 2024-Present

  • Founder of Ansible Marketplace Architecture→ 2023-Present

  • Head of Creator Economy Science→ Epic Games 2022-2023

  • Marketplace Architect/Software Engineer→ Pinterest, 2020-2022

  • Principal Data Scientist→ Nike, 2019-2020

  • Economist→ Amazon, 2017-2019

  • Assistant Professor of Economics→ Carnegie Mellon University, 2010-2017

Publications

  1. Inverse Reinforcement Learning with Explicit Policy Estimates , AAAI 2021

  2. Bidding frictions in Ascending Auctions , Journal of Econometrics, Volume 223, Issue 2, August 2021

  3. A Study of Participation in Dynamic Auctions, International Economic Review, Volume 55, No. 4, November 2014