Gregoire Colin
Data scientist at Meta optimizing ads ranking and global infrastructure scale.
Gregoire Colin is a data scientist at Meta who specializes in ads ranking, semantic clustering, and system security.
His work addresses massive optimization problems, from detecting hackers to making global infrastructure more efficient. He evaluates large-scale compute capacity, helping design an agentic ecosystem that uses AI to balance workloads and recoup tens of megawatts of power across Metaβs servers.
When he steps away from his keyboard, Gregoire trains for Ironman triathlons. He recently competed at the half Ironman World Championship in 2025.