Senior Frontend Engineer

About Arize AI is rapidly transforming the world. As generative AI reshapes industries, teams need powerful ways to monitor, troubleshoot, and optimize their AI systems. That’s where we come in. Arize AI is the leading AI & Agent Engineering observability and evaluation platform , empowering AI engineers to ship high-performing, reliable agents and applications. From first prototype to production scale, Arize AX unifies build, test, and run in a single workspace—so teams can ship faster with confidence. We’re a Series C company backed by top-tier investors, with over $135M in funding and a rapidly growing customer base of 150+ leading enterprises and Fortune 500 companies. Customers like Booking.com , Uber, Siemens, and PepsiCo leverage Arize to deliver AI that works. The Opportunity We’re looking for a Senior Frontend Engineer who cares deeply about how fast, stable, and intuitive complex AI systems feel in the browser. You’ll spend the vast majority of your time in React + TypeScript, owning frontend architecture, performance, and instrumentation. Our customers are high performing teams running agents and models in production. Your job is to make those workflows feel instant, predictable, and trustworthy. What You’ll Do Spend most of your time building rich, performant frontend experiences in React + TypeScript (dashboards, traces, configuration flows, real-time views). Collaborate with backend engineers on requirements, define API contracts, implement UI, and ship with metrics, logs, and alerts wired up. Design and implement patterns built for scale that work under real data and load. Lead frontend architecture decisions around routing, data fetching, caching, and state management. Mentor junior engineers and help them grow their skills. Please mention the word **KEENNESS** and tag RMjYwNzo1MzAwOjIwZDo3ZDAwOjo= when applying to show you read the job post completely (#RMjYwNzo1MzAwOjIwZDo3ZDAwOjo=). This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.