Pineau was one of Meta's top AI researchers and led the company's fundamental AI research unit, or FAIR, since 2023. There, she oversaw the company's cutting-edge computer science-related studies, some of which are eventually incorporated into the company's core apps.
She joined the company in 2017 to lead Meta's Montreal AI research lab. Pineau is also a computer science professor at McGill University, where she is a co-director of its reasoning and learning lab.
Some of the projects Pineau helped oversee include Meta's open-source Llama family of AI models and other technologies like the PyTorch software for AI developers.