Senior Full Stack Engineer

As a Senior Full Stack Engineer on the Advertising Product & Technology team, you will design, build, and maintain scalable services and APIs, ensuring performance, security, and reliability. You will lead backend architecture discussions, mentor engineers, and guide large-scale system improvements. Resolve complex issues across distributed systems and drive adoption of high-quality backend practices. Partner with teams to design APIs and integrations that reduce reliance on custom one-offs. You will collaborate with designers and product managers to implement features on top of backend services. Provide flexible, well-documented APIs that enable consistent and user-friendly frontend experiences. You will also contribute to frontend codebases when needed, supporting design system adoption and alignment. Care about delivering user-focused experiences through backend–frontend collaboration.