Principal UX Designer

📍 Job Overview

Job Title: Principal UX Designer

Company: Familiar Machines & Magic

Location: Los Angeles, California, United States

Job Type: FULL_TIME

Category: User Experience (UX) Design / Product Design

Date Posted: 2026-09-16

Experience Level: 10+ Years

Remote Status: Hybrid

🚀 Role Summary

• Lead the end-to-end UX productization for physical AI systems, defining cohesive interaction patterns across app, web, and on-product interfaces.

• Drive the creation of a unified customer experience that bridges digital and physical touchpoints, ensuring seamless everyday interactions and robust handling of system states and failures.

• Establish and evolve the UX visual language and design system for the Familiar ecosystem, translating brand identity and product personality into a coherent communication language.

• Partner collaboratively with cross-functional teams including Product, AI, Software, Hardware, and User Experience Research (UXR) to translate product vision into shippable, high-quality experiences.

📝 Enhancement Note: While the raw job title is "Principal UX Designer," the description strongly emphasizes productization, systems thinking, and the unique challenges of physical AI products. This suggests a role that blends traditional UX with elements of product management and systems design, particularly within the context of hardware-software integration and human-robot interaction. The "Principal" title implies significant autonomy and leadership in defining and executing the UX strategy for the core product.

📈 Primary Responsibilities

• Lead the translation of the established product vision, behaviors, and use cases of the Familiar into a cohesive, launch-ready customer experience across the mobile application, on-product interfaces, and other supporting digital touchpoints.

• Define and document interaction patterns, system states, and overarching experience frameworks that ensure a scalable and unified experience across the entire Familiar ecosystem, from high-level system definition to detailed execution.

• Establish the UX visual language and comprehensive design system for the app, web, and the Familiar's embodied behaviors and expressions, ensuring a coherent communicative language aligned with FM&M's brand and the Familiar's identity.

• Collaborate closely with Design, Product, AI, Software, Hardware, and User Experience Research (UXR) teams to translate the Familiar's intended character, personality, and behaviors into shippable experiences, effectively resolving cross-system dependencies throughout development, validation, and launch phases.

• Design specifically for the realities and nuances of a physical AI product, encompassing everyday interactions, system feedback mechanisms, edge cases, failure scenarios, recovery processes, and customer support integration.

• Remain hands-on throughout the development lifecycle, utilizing prototyping to explore concepts, validate designs, and guide the experience through implementation, ensuring design quality and intent are meticulously carried through to the final launch.

• Partner with Product, Research, and Engineering teams to define key metrics and methodologies for evaluating the customer experience in the market, and to iterate on interactions based on behavioral data, customer feedback, and advancements in system capabilities.

📝 Enhancement Note: The responsibilities highlight a focus on end-to-end product ownership for the user experience, particularly the integration of digital interfaces with physical product behavior. The emphasis on "systems thinking" and "cohesive experience" across multiple touchpoints is critical for this role. The expectation to be "hands-on throughout development" suggests a need for strong execution skills in addition to strategic thinking.

🎓 Skills & Qualifications

Education: Bachelor's degree in Human-Computer Interaction, Design, Computer Science, or a related field, or equivalent practical experience.

Experience: Extensive experience (10+ years) leading complex UX products from initial definition through launch and ongoing evolution, with a significant portion focused on consumer products that bridge software and physical experiences.

Required Skills:

• Deep digital UX expertise encompassing system-level experience design and detailed interaction design.

• Robust experience partnering with UX researchers and actively participating in diverse forms of user research methodologies.

• Strong design judgment and visual sensibility, informed by a sophisticated understanding of contemporary digital landscapes and platform-specific design principles.

• Significant experience shipping consumer products that integrate software and physical experiences (e.g., connected devices, robotics, wearables, gaming, smart home, consumer electronics).

• Proven ability to establish cohesive UX patterns and frameworks across multiple platforms and surfaces, extending beyond individual features to holistic system design.

• Strong leadership, judgment, and influence capabilities within multidisciplinary teams, with a clear UX point of view and the ability to elevate product quality while navigating complex product, design, and technical tradeoffs.

• Fluency with emerging technologies, particularly AI, and a thoughtful perspective on their application in UX design, prototyping, and product development. Preferred Skills:

• Experience with the specific challenges and opportunities presented by physical AI and human-robot interaction.

• Proficiency in creating and maintaining design systems for complex product ecosystems.

• Experience in environments with a strong emphasis on culture-forward principles and ways of working.

• Familiarity with agile development methodologies and cross-functional team collaboration in fast-paced settings.

📝 Enhancement Note: The "Principal" level and the nature of the product (physical AI) necessitate a strong blend of strategic thinking, systems design, and hands-on execution. The emphasis on bridging digital and physical experiences is paramount, making experience with connected devices or robotics highly valuable. The company's mention of "culture principles" suggests that soft skills and collaborative aptitude are as important as technical UX skills.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrations of end-to-end product design leadership, from initial concept and user research to final launch and iteration.

• Case studies showcasing complex systems design, illustrating how disparate digital and physical elements were unified into a cohesive user experience.

• Examples of defining and implementing design systems or comprehensive UX pattern libraries across multiple platforms.

• Projects that highlight experience with consumer electronics, robotics, or connected devices, detailing the unique challenges and solutions in bridging physical and digital interactions.

• Evidence of strong collaboration with cross-functional teams (Product, Engineering, Research) and how UX influenced product direction and execution.

• Projects that showcase an understanding of system states, failure modes, and recovery strategies within a product. Process Documentation:

• Case studies should clearly articulate the design process followed, including research methodologies, ideation techniques, prototyping approaches, and user validation methods.

• Documentation of how the candidate established and evolved UX patterns and frameworks to ensure scalability and consistency across a product ecosystem.

• Examples of how user feedback and behavioral data were incorporated into design iterations and product evolution.

• Visualizations or descriptions of how the candidate translated abstract product vision or AI behaviors into tangible user interface elements and interactions.

📝 Enhancement Note: For a Principal UX Designer role, especially at a company building novel physical AI products, the portfolio is critical. It needs to go beyond individual UI screens to showcase strategic thinking, systems-level design, and the ability to manage complex, cross-disciplinary projects. The emphasis on "end-to-end" and "bridging digital and physical" should be evident in the selected case studies.

💵 Compensation & Benefits

Salary Range: $180,000 - $210,000 USD per year.

Benefits:

• Equity: Opportunity to receive stock options in a growing startup.

• Comprehensive Health, Dental, and Vision Insurance.

• Paid Time Off (PTO) and Holidays.

• Parental Leave.

• Opportunities for professional development and continued learning.

Working Hours: Standard full-time hours, approximately 40 hours per week. The role is hybrid, requiring some in-office presence for collaboration.

📝 Enhancement Note: The provided salary range is specific and competitive for a Principal UX Designer role in Los Angeles, a major tech hub. The inclusion of "Equity" is a common and significant benefit for employees at startups like Familiar Machines & Magic. The hybrid nature implies a need for flexibility and in-person collaboration, which is typical for roles requiring close teamwork.

🎯 Team & Company Context

🏢 Company Culture

Industry: Technology, Robotics, Artificial Intelligence, Consumer Electronics. Familiar Machines & Magic operates at the intersection of these fields, focusing on building "Physical AI" for human connection.

Company Size: The description implies a growing startup environment, likely between 50-200 employees, given the mention of "growing team" and experienced leadership from established companies. This size offers a dynamic, hands-on experience with significant impact.

Founded: Founded by industry leaders from iRobot, Outrider, and Amazon, with a mission to create artificial life for a more caring world. This background suggests a strong foundation in robotics, AI, and consumer product deployment.

Team Structure:

• The UX team is likely small but impactful, reporting to a Director of Companionship Design.

• This role will work closely with Product Management, AI/ML Engineering, Software Development, Hardware Engineering, and User Experience Research (UXR).

• Collaboration is expected to be highly cross-functional and integrated, reflecting the complex nature of developing physical AI products. Methodology:

• Driven by a "mission-driven team of high performers," anchored in specific "Culture Principles and Ways of Working."

• Emphasis on "Experience Obsessed" culture, requiring a systems mindset for end-to-end customer experiences.

• Focus on translating abstract experiential and behavioral intent into tangible, trustworthy experiences.

• Data-driven decision-making, utilizing behavioral data and customer feedback for product evolution.

Company Website: https://familiarmachines.com

📝 Enhancement Note: The company's origin story and leadership team suggest a deep technical bench and a serious approach to product development. The "Culture Principles and Ways of Working" are highlighted, indicating that cultural fit and alignment with their values are as important as technical skills. The "Physical AI" and "artificial life" mission are unique and will attract candidates passionate about novel technology and human connection.

📈 Career & Growth Analysis

Operations Career Level: Principal UX Designer. This level signifies a senior individual contributor role with significant autonomy, strategic influence, and leadership responsibilities. It's a position for seasoned professionals expected to define best practices, mentor others, and drive major product initiatives.

Reporting Structure: The role reports directly to Morgan Pope, Director of Companionship Design. This indicates a clear reporting line within the design organization, with potential for interaction with higher levels of product and engineering leadership.

Operations Impact: This role has a direct and profound impact on the core product's success by shaping the user experience of the "Familiars." The design decisions made will influence how users perceive, interact with, and form relationships with these physical AI entities, directly affecting user adoption, satisfaction, and the company's mission of creating a more caring world.

Growth Opportunities:

• Specialization: Deepen expertise in human-robot interaction, physical product UX, and AI-driven experiences.

• Leadership: Potential to grow into a Lead or Managerial UX role as the design team expands, or to become a recognized subject matter expert within the company.

• Product Influence: Play a pivotal role in shaping the future roadmap and strategic direction of Familiar Machines & Magic's product portfolio.

• Industry Impact: Contribute to a groundbreaking field (Physical AI) and set new standards for user experience in artificial life and human-robot relationships.

📝 Enhancement Note: The "Principal" title suggests a career trajectory focused on deep individual contribution and strategic leadership within the design discipline, rather than immediate management. Growth will likely involve taking on more complex product areas, mentoring junior designers, and influencing broader product strategy.

🌐 Work Environment

Office Type: Hybrid work model, requiring a balance between remote work flexibility and in-office collaboration. This suggests a modern workplace that values both focused individual work and team synergy.

Office Location(s): Los Angeles, California. This location offers access to a vibrant tech and design community, talent pool, and potentially a collaborative workspace designed for innovation.

Workspace Context:

• The workspace likely fosters a culture of innovation and collaboration, essential for developing cutting-edge physical AI.

• Access to necessary design tools, software, and potentially prototypes or physical product labs for hands-on work.

• Opportunities for frequent interaction with a multidisciplinary team, facilitating rapid iteration and problem-solving.

Work Schedule: Full-time (approximately 40 hours/week), with a hybrid arrangement. While core hours will likely exist for team collaboration, there's an inherent flexibility associated with remote work days, allowing for focused design and development efforts.

📝 Enhancement Note: The hybrid nature is key here. It implies that while remote work is possible, the company values in-person interaction for critical design discussions, brainstorming, and team cohesion, especially for a Principal-level role that requires significant cross-functional influence.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A conversation with a recruiter or hiring manager to assess basic qualifications, cultural fit, and alignment with the role's core responsibilities.

• Portfolio Review: A deep dive into the candidate's portfolio, focusing on case studies that demonstrate systems thinking, end-to-end product ownership, and experience with physical-digital products. Expect detailed questions about your process, decision-making, and impact.

• Cross-functional Interviews: Meetings with key stakeholders from Product, Engineering, AI, and UXR to evaluate collaboration skills, technical understanding, and ability to navigate complex trade-offs.

• Design Challenge/Workshop: Potentially a take-home assignment or a live workshop session to assess problem-solving skills, design thinking, and ability to articulate a UX strategy for a specific problem related to physical AI.

• Final Round: Discussions with senior leadership to assess strategic vision, leadership potential, and cultural alignment.

Portfolio Review Tips:

• Curate Strategically: Select 3-5 of your strongest projects that best showcase your experience in systems design, physical-digital integration, and leading complex UX initiatives from conception to launch.

• Tell a Story: For each case study, clearly articulate the problem, your role, the process you followed, the key decisions you made and why, the challenges you overcame, and the measurable impact of your work.

• Highlight Systems Thinking: Explicitly demonstrate how you approached the product as a system, considering the interplay between digital interfaces, physical behaviors, and user interaction over time.

• Showcase Collaboration: Provide examples of how you partnered with other disciplines and influenced product direction.

• Focus on Impact: Quantify results whenever possible (e.g., improved user engagement, reduced error rates, successful product launches). If quantitative data is unavailable, focus on qualitative outcomes and user feedback.

Challenge Preparation:

• Understand the Product: Thoroughly research Familiar Machines & Magic, their mission, their product (Familiars), and the concept of "Physical AI."

• Anticipate Physical AI Challenges: Think about the unique UX considerations for physical robots that form emotional connections: embodiment, non-verbal communication, error handling, autonomy, and the user's perception of "life."

• Practice Articulating Design Systems: Be prepared to discuss how you would approach creating a unified design language for a system involving app, web, and physical robot behaviors.

• Prepare for Ambiguity: The role involves navigating ambiguity. Practice framing problems, proposing solutions, and justifying your approach with limited information.

📝 Enhancement Note: The interview process will likely be rigorous, focusing heavily on strategic thinking, systems design, and the ability to translate abstract concepts into tangible user experiences for a novel product category. The portfolio is paramount and must demonstrate the specific skills and experiences highlighted in the job description.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma, Sketch, Adobe Creative Suite (Photoshop, Illustrator), Principle, Protopie, or similar advanced prototyping tools.

• Design Systems: Experience with creating, maintaining, and scaling design systems.

• Collaboration: Slack, Zoom, Google Workspace, Asana, Jira, or similar project management and communication tools.

Analytics & Reporting:

• Familiarity with user analytics platforms (e.g., Mixpanel, Amplitude, Google Analytics) to understand user behavior and inform design decisions.

• Understanding of how to define and track UX-related KPIs. CRM & Automation:

• While not directly a CRM role, an understanding of how user data flows and is utilized across different platforms (app, web, potentially backend systems) is beneficial for holistic experience design.

• Experience with tools that facilitate cross-platform integration and data synchronization for a seamless user journey.

📝 Enhancement Note: The tools listed are standard for senior UX/Product Designers. The emphasis should be on proficiency in advanced prototyping and design system management, as these are critical for defining complex, multi-platform experiences for a novel product. Familiarity with user analytics is crucial for data-informed design.

👥 Team Culture & Values

Operations Values:

• Experience Obsessed: A deep commitment to understanding and perfecting the end-to-end customer experience, seeing it as a cohesive system rather than isolated features.

• Systems Mindset: Approaching design challenges by considering the interconnectedness of all components, from software to hardware to user behavior.

• High Performance: A drive to achieve ambitious goals and deliver exceptional quality, supported by a culture of accountability and continuous improvement.

• Culture Forward: Valuing and actively cultivating a positive, inclusive, and collaborative work environment based on defined principles and ways of working.

• Mission-Driven: A passion for the company's mission to create artificial life for a more caring world, infusing purpose into daily work.

Collaboration Style:

• Cross-functional Integration: Seamless collaboration across Design, Product, AI, Software, Hardware, and UXR teams is essential.

• Influence Through Expertise: Leading through clear UX vision, data-driven insights, and persuasive communication.

• Hands-on Partnership: Actively participating in design discussions, problem-solving sessions, and development cycles alongside other disciplines.

• Constructive Feedback: An environment where ideas are shared openly, and feedback is given and received constructively to elevate the product.

📝 Enhancement Note: The company explicitly states its "Culture Principles and Ways of Working." Candidates should research these (if publicly available) or be prepared to discuss how they align with such values as "Experience Obsessed" and "Systems Mindset." The collaborative nature is stressed, indicating that teamwork and communication are paramount.

⚡ Challenges & Growth Opportunities

Challenges:

• Defining Novel Experiences: Creating intuitive and emotionally resonant user experiences for a completely new category of product (Physical AI/artificial life).

• Bridging Digital & Physical: Seamlessly integrating app/web interfaces with the embodied behaviors and physical interactions of a robot.

• Navigating Ambiguity: Working in a fast-paced startup environment with evolving product requirements and emerging technologies.

• Balancing Constraints: Juggling creative ambition with technical limitations, product priorities, and tight schedules.

• Cross-functional Alignment: Ensuring all stakeholders are aligned on the UX vision and implementation across diverse engineering disciplines.

Learning & Development Opportunities:

• Pioneering Field: Opportunity to become a leader and expert in the nascent field of Physical AI and human-robot interaction UX.

• Skill Expansion: Develop expertise in designing for embodied AI, advanced prototyping, and complex systems integration.

• Strategic Influence: Gain experience in shaping product strategy and roadmap for a groundbreaking technology.

• Mentorship: Learn from experienced leaders in robotics and AI, and potentially mentor junior designers as the team grows.

• Industry Recognition: Contribute to a company that aims to redefine human connection through technology.

📝 Enhancement Note: The challenges are inherent to working on cutting-edge technology. The growth opportunities are significant, offering the chance to be at the forefront of a new industry and develop highly specialized skills.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you led the UX strategy for a complex product that bridged digital and physical experiences. What were the key challenges and how did you overcome them?" (Focus on systems thinking, end-to-end ownership, and cross-functional collaboration).

• "How would you approach establishing a cohesive UX design system for a product that includes a mobile app, a web interface, and the embodied behaviors of a physical robot?" (Prepare to discuss principles of consistency, scalability, and translating brand identity).

• "Imagine a Familiar robot fails to charge. Walk us through how you would design the end-to-end customer experience, from immediate feedback to resolution." (Demonstrate your "Experience Obsessed" and "Systems Mindset" approach to failure and recovery). Company & Culture Questions:

• "What interests you most about Familiar Machines & Magic's mission to create artificial life?" (Show genuine passion for the company's vision).

• "How do you align with our 'Experience Obsessed' and 'Systems Mindset' culture principles?" (Be ready to provide examples of how you embody these values in your work).

• "Describe your experience working in a fast-paced, evolving startup environment. How do you handle ambiguity and shifting priorities?" (Highlight adaptability and resilience). Portfolio Presentation Strategy:

• Structure Your Narrative: For each case study, clearly define the problem statement, your specific role and responsibilities, the design process, key decisions and trade-offs, your solutions, and the measurable outcomes.

• Emphasize Systems Thinking: Visually and verbally illustrate how you considered the entire product ecosystem, not just isolated screens or features. Show how digital and physical aspects connect.

• Show, Don't Just Tell: Use high-fidelity mockups, interactive prototypes, and clear visuals to convey your design solutions. If possible, include videos or GIFs demonstrating interaction flows.

• Articulate Your 'Why': Be prepared to deeply explain the rationale behind your design decisions, linking them back to user needs, business goals, and technical constraints.

• Be Ready for Deep Dives: Expect detailed questions about your process, tools, and specific contributions. Practice talking through your work concisely yet comprehensively.

📝 Enhancement Note: The interview will heavily test your ability to think systemically and translate abstract concepts into user-friendly experiences for a novel product. Preparing specific case studies that directly address physical-digital integration and complex systems design will be crucial.

📌 Application Steps

To apply for this Principal UX Designer position:

• Submit your application through the provided link on Ashby.

• Tailor Your Resume: Highlight your extensive experience in UX/Product Design, particularly with complex consumer products, systems thinking, and any experience with hardware-software integration, robotics, or connected devices. Quantify achievements where possible.

• Curate Your Portfolio: Select 3-5 of your most relevant projects that showcase your ability to lead end-to-end UX, design cohesive systems, and bridge digital/physical experiences. Ensure each case study clearly outlines the problem, your process, your role, and the impact.

• Prepare Your Narrative: Practice presenting your portfolio projects, focusing on your strategic thinking, problem-solving approach, and ability to articulate complex design decisions. Be ready to discuss your experience with AI and emerging technologies.

• Research FM&M: Understand their mission, product vision, and culture principles. Prepare thoughtful questions about the role, the team, and the company's future.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.