Frontend AI UI Engineer

We are looking for a Frontend AI UI Engineer to design and implement highly interactive, intuitive, and enterprise-grade UIs for our Agentic AI Platform. You will collaborate closely with the Principal AI UI Architect to deliver visual interfaces that allow users to build, test, debug, and deploy outcome-driven reasoning agents. This role involves developing agent builders, simulation tools, dialog orchestration interfaces, and multi-channel assistant deployment UIs, ensuring a seamless developer and enterprise experience. Key ResponsibilitiesAgentic UI DevelopmentBuild interactive visual editors (drag-and-drop) for agent orchestration and reasoning workflows (LangGraph visualization). Implement prompt management, versioning, and testing interfaces for agent development.Develop real-time debugging tools to visualize agent reasoning traces, tool invocations, and dialog flows. Integrate UI components with LangSmith APIs for agent observability, evaluations, and regression testing. User Simulation & Testing InterfacesImplement user simulation frameworks for testing agent strategies with varied personas and scenarios Build A/B testing dashboards for evaluating outcome-driven strategies across agents and prompts. Create UIs for multi-turn conversation playback, agent state inspection, and scenario-driven outcome analysis. Dialog Orchestration & Multi-Channel Experience Develop dialog flow editors to design multi-turn conversations with branching, context retention, and hierarchical dialogs. Build deployment interfaces to configure assistants across digital channels (chat, web, messaging) and voice/IVR systemsCore UI Framework & ArchitectureCollaborate with the architect to define frontend design patterns, state management, and modular UI frameworks. Integrate frontend with backend APIs, agent runtimes, and real-time event streams.Ensure UI scalability, performance optimization, and secure multi-tenant design for enterprise usage. Collaboration & Developer ExperiencePartner with backend engineers to integrate APIs and orchestration services into the UI seamlessly. Work closely with UX designers to deliver high-quality, intuitive user interfaces aligned with AI/agent workflows.Participate in code reviews, design discussions, and cross-functional planning with architects and engineers. Please note: This is a hybrid role that will be based in San Mateo, CA or Bellevue, WA and requires an in-office presence three days per week (Tuesday - Thursday).