Principal UX Designer — End-to-End Physical AI Experience

Familiar Machines & Magic; Los Angeles (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Familiar Machines & Magic seeks a Principal UX Designer to lead UX across app, web, and on-product experiences. You will shape a cohesive system spanning digital and physical touchpoints, ensuring an end-to-end customer experience with a systems mindset.

You will collaborate across Design, Product, AI, Software, Hardware, and UXR to deliver shippable, trusted experiences. The ideal candidate brings deep UX expertise, strong leadership, and a hands-on approach to prototyping and iteration

Qualifications

• Extensive experience leading complex UX products from definition through development, launch and evolution.
• Strong visual sense, refined design language, and pragmatic platform-specific judgment.
• Deep digital UX expertise spanning system-level experience design and detailed interaction design.
• Robust experience partnering with UX researchers and engaging in diverse user research.
• Strong design judgment and a sophisticated understanding of modern digital landscapes and platform needs.
• Significant experience shipping consumer products bridging software and physical experiences (robotics, wearables, etc.).
• Experience establishing cohesive UX patterns and frameworks across multiple platforms.

Responsibilities

• Lead translation of product vision into cohesive, launch-ready customer experiences across app, on-product interfaces, and supporting digital touchpoints.
• Define interaction patterns, system states, and scalable UX frameworks across the ecosystem.
• Establish UX visual language and design system spanning app, web, and embodied behaviors.
• Collaborate with Design, Product, AI, Software, Hardware, and UXR to translate character and behavior into shippable experiences.
• Design for realities of a physical AI product, including edge cases, failure, recovery, and support.
• Stay hands-on during development, using prototyping to validate and guide implementation.
• Partner with PM, Research, and Engineering to define how we evaluate experience in-market and evolve interactions based on data.

Skills

UX leadership

system-level UX

interaction design

visual design

user research collaboration

AI familiarity

cross-disciplinary collaboration

prototyping & iteration

Job description

Familiar Machines & Magic seeks a Principal UX Designer to lead UX across app, web, and on-product experiences. You will shape a cohesive system spanning digital and physical touchpoints, ensuring an end-to-end customer experience with a systems mindset.

You will collaborate across Design, Product, AI, Software, Hardware, and UXR to deliver shippable, trusted experiences. The ideal candidate brings deep UX expertise, strong leadership, and a hands-on approach to prototyping and iteration