Passionate and inquisitive, the full-time Senior Staff Backend Engineer will define the technical vision and architecture for the backend systems powering Pinterest Assistant, collaborating with cross-functional teams to build AI-powered experiences while working remotely with occasional in-office collaboration. Key responsibilities Define and drive the technical vision and architecture for backend systems, ensuring scalability for millions of users Lead the design and implementation of the core Assistant platform, including orchestration, memory, and personalization Shape the architecture for AI-powered applications in partnership with machine learning teams, establishing engineering best practices Required qualifications Bachelor's degree in a relevant field such as computer science or equivalent experience 10+ years of backend software engineering experience, including significant experience leading large-scale systems 3+ years operating as a technical lead in distributed backend systems Strong backend engineering experience in Python, TypeScript, Node, or similar languages Experience building platforms that enable product teams to move faster, with a strong understanding of modern model-driven systems