Quentin Rousseau

Quentin Rousseau is an early Site Reliability Engineer at Instacart and a serial technology entrepreneur specializing in scalable infrastructure. In his engineering capacity, he focuses on architecting and maintaining resilient backend systems capable of processing millions of high-volume consumer grocery orders across the platform. Alongside his corporate engineering work, Rousseau co-founded PopSQL, a collaborative database querying application that successfully participated in the Y Combinator Summer 2019 accelerator batch. He subsequently launched his second Y Combinator backed enterprise software venture as the co-founder of Rootly during the accelerator's Summer 2021 cohort. Through Rootly, he developed specialized incident management platforms designed to help large-scale engineering organizations automate their complex site reliability workflows. Originally from France, Rousseau maintains a primary professional focus on advancing developer tooling, site reliability engineering, and the foundational architecture of highly resilient technological operations.