Machine Learning Engineer, Stripe Assistant

As a Senior Machine Learning Engineer on the Stripe Assistant team, you'll own the end-to-end ML and agent architecture that makes Stripe Assistant safe, reliable, and deeply useful. You'll set the strategy for how the Assistant executes high-trust actions, delivers accurate analytical answers across Stripe and the broader web, orchestrates capabilities across many tools and agents, and grounds responses in authoritative Stripe and user data. You'll drive conversation continuity and personalization across surfaces, evolve the Assistant into a proactive partner, deepen its presence in the dashboard, establish rigorous evaluation and SLOs, and deliver step-change improvements in quality, latency, cost, and availability.