Senior Director, Design - Model Experience

Microsoft Microsoft · Big Tech · Redmond, WA +2 · Product Design

Seeking a Design leader to own the end-to-end design quality of AI model personality, tone, and user-facing experiences. This player-coach role involves hands-on IC work (80%) and coaching a small team (20%) of model and UX designers. Responsibilities include defining the creative vision, shaping model personality, driving UX for product surfaces, and building evaluation systems for design quality. The role requires a strong design craft, intuition for language and personality, and the ability to ship regularly.

What you'd actually do

  1. Own the creative vision for model experience: Define and evolve how our AI models look, feel, speak, and interact across all surfaces — establishing a coherent design language that spans personality, tone, visual design, and interaction patterns.
  2. Do the work yourself: Personally produce high-quality IC output — whether that's crafting model personality specifications, designing interaction prototypes, defining prompt taxonomies, or building evaluation frameworks for response quality. You lead by example.
  3. Shape model personality and tone: Work directly with model researchers to define and refine the model's character, voice, and communication style. Translate abstract personality goals into concrete SFT data strategy, quality rubrics, and evaluation criteria.
  4. Drive UX for key product surfaces: Own the experience design for MM Labs, Playground, marketing pages, and model specification tools. Ensure every surface reflects world-class design craft and a deep understanding of how users interact with AI.
  5. Coach and grow a small team: Manage 4-5 direct reports across model design and UX design. Set direction, run rigorous critiques, unblock your team, and raise the quality bar — while keeping your own hands in the work.

Skills

Required

  • Product Design
  • Human-Computer Interaction
  • Interaction Design
  • Communication Design
  • Linguistics
  • design taste and craft
  • intuition for language and personality
  • designing for AI, LLM, or conversational systems
  • experience designing for AI, LLM, or conversational systems
  • managing or mentoring designers
  • player-coach roles
  • shipping products end-to-end

Nice to have

  • model personality design
  • UX prototyping
  • interaction design
  • prompt taxonomies
  • evaluation frameworks for response quality
  • SFT data strategy
  • quality rubrics
  • evaluation criteria
  • MM Labs
  • Playground
  • marketing pages
  • model specification tools
  • linguistics backgrounds
  • UX designers
  • model behavior
  • product experience
  • linguistic quality
  • design craft
  • model training priorities
  • user-facing capabilities
  • design quality
  • rubrics
  • evaluations
  • feedback loops
  • user experience insights

What the JD emphasized

  • own the end-to-end design quality
  • player-coach role
  • hands-on IC work
  • ship regularly
  • own the vision and the details

Other signals

  • AI personality design
  • model experience
  • user-facing AI experiences
  • design leader