Principal Product Designer, AI Experiences

Requirements

• Bachelor's Degree in Product Design, Graphic Design, Human-Computer Interaction, Interaction Design, or related field AND 5+ years experience in product or service design OR Master's Degree in a related field AND 3+ years experience OR equivalent experience
• A portfolio demonstrating exceptional visual design craft and interaction design — with shipped products, not just concepts
• Demonstrated use of AI-native design and prototyping workflows: you actively use agentic coding tools (e.g., Cursor, GitHub Copilot, v0, Bolt, or similar) to produce working UI, not just static mockups
• Ability to write or direct frontend code (HTML/CSS/JavaScript/React or equivalent) using AI coding assistants — you don't need to be a software engineer, but you can ship production-quality UI with AI tools
• Strong foundations in graphic design: typography, layout, color theory, and visual hierarchy
• Experience designing for web-based tools, developer-facing products, or AI/ML interfaces
• Track record of shipping products end-to-end with high craft and attention to detail, in environments where you owned outcomes — not just deliverables

Nice to Haves

• Experience designing for AI, LLM, or conversational products — understanding how non-deterministic model behavior affects UX decisions
• Portfolio demonstrating before/after impact: designs that measurably improved user engagement, comprehension, or task success
• Experience with motion design, micro-interactions, or advanced prototyping (Framer, Rive, or code-based animation)
• Familiarity with AI-assisted user research, synthetic testing, or automated design evaluation
• Evidence of continuously adopting and mastering new tools — you have a pattern of being early to new workflows and making them productive fast

Responsibilities

• Own the UX for flagship AI surfaces: Design and ship the end-to-end user experience for MM Labs, Playground, marketing pages, and model specification tools — from information architecture and interaction flows to pixel-level visual polish
• Design and build: Use AI-native workflows (Cursor, GitHub Copilot, v0, or equivalent agentic coding tools) to move fluidly from design concepts to working prototypes and production-quality frontend code. Own the UI layer end-to-end when needed
• Prototype at speed: Rapidly produce interactive, high-fidelity prototypes to test new interaction paradigms for multimodal, agentic, and copilot-style AI experiences. Use AI tools to compress iteration cycles from days to hours
• Elevate visual craft and interaction quality: Apply strong graphic design foundations — typography, layout, color, motion — to create experiences that feel polished, intentional, and trustworthy. Sweat the details that make AI feel human
• Partner with model designers and researchers: Collaborate closely with model designers (who shape how the AI speaks and behaves) and researchers (who build the underlying capabilities) to ensure the UX faithfully represents model personality and strengths
• Inform design systems: Contribute to and extend shared design systems, component libraries, and interaction patterns — ensuring consistency across surfaces while pushing the craft forward
• Drive design through data and user insight: Use both qualitative and quantitative signals (user research, analytics, A/B experiments) to validate design decisions and iterate. Bring evidence, not just intuition
• Automate your own workflow: Continuously explore and adopt new AI tools, plugins, and workflows that make you faster and more capable. Share what you learn with the team

Perks and Benefits

• This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled