Senior Frontend Engineer, Agentic AI Real-time UIs

Sift is seeking a seasoned product engineer to own hardware-focused frontend features for the Sift Agents platform. You will talk to customers, decide what to build, and own delivery from MVP through iterations, tackling performance and UX on real-time telemetry data. You'll ship high-quality web interfaces using React, Next.js and TypeScript, optimize for latency, and collaborate with backend engineers on API design. This role blends product ownership with technical execution.