Engineer — Product & User Interface Systems

We're building the control plane for AI agents in teams and companies. As a Founding Engineer focused on Product & User Interface Systems, you will design and build the user-facing layer of that control plane — the web applications, workflows, and interfaces that make powerful agent infrastructure usable by real teams. This is not a “frontend-only” role. You will work across the stack: distributed cloud-based systems, Kubernetes-based services, and modern web applications. You’ll collaborate deeply with product and design to turn complex infrastructure into intuitive, high-leverage user experiences. You’ll also help define a new interface paradigm: agents as an interactive modality — not just chat, but structured, controllable, and production-grade workflows. If you care about product quality, system coherence, and shaping how humans interact with autonomous systems — we want to talk. What You’ll Own You will build and evolve the user-facing layer of our platform: Web Application & Product Experience Design and implement React + TypeScript web applications Build high-performance, stateful interfaces for managing agents Develop dashboards, policy configuration UIs, audit views, and workflow builders Create systems that make complex agent behavior understandable and controllable Full-Stack Engineering Build backend services supporting the UI Design APIs for agent control, policy configuration, and observability Work within a Kubernetes-native, cloud-based distributed system Collaborate on schema design, data modeling, and service boundaries Agent-Native Interfaces Explore agents as a new user interface modality Design structured, interactive agent workflows beyond simple chat Combine UI controls with agent reasoning Experiment with hybrid patterns: visual + conversational + automated systems CLI & Future Interfaces Contribute to a TypeScript- or Python-based CLI Design consistent interaction patterns across web and CLI Lay groundwork for potential future mobile interfaces Product & Design Collaboration Work closely with product and design to translate concepts into shipped software Participate in usability thinking and iterative refinement Ship quickly, iterate based on feedback, and improve continuously What We’re Looking For Experience building production-grade web applications in React + TypeScript Comfort working across the full-stack of distributed systems Strong API design instincts Experience shipping SaaS products used by technical teams Ability to translate complex backend systems into usable interfaces Strong product intuition and UX sensibility Bonus Experience building developer tools or control-plane software Experience designing workflow builders or configuration-heavy interfaces Experience with real-time systems or streaming UIs Experience building CLIs Familiarity with LLM-powered products or agent systems What Makes This Role Unique You’ll help define how teams interact with autonomous agents. You’ll build interfaces for infrastructure-level systems. You’ll operate at the intersection of product design, distributed systems, and AI. You’ll have ownership from concept to production. This is a high-impact, high-autonomy role. You’ll influence product direction and user experience at the foundational stage of the company. Who Thrives Here Engineers who care about product polish and system clarity. Builders who like working across frontend and backend. People comfortable turning complexity into usable abstractions. Those excited about inventing new human–AI interaction models. #J-18808-Ljbffr Guild.ai, Inc.