This list contains only the countries for which job offers have been published in the selected language (e.g., in the French version, only job offers written in French are displayed, and in the English version, only those in English).
The Fluent Design System team is redefining Microsoft 365’s design system for the AI era. As M365 Copilot evolves into a rich, multimodal productivity platform, Fluent is transforming from traditional design systems into an adaptive, model-aware design foundations—one that blends GUI precision with generative, context-aware behaviors at scale. As a Principal Design System Architect, you'll help shape the future of how AI-native experiences are designed, built, and sustained at an ecosystem-level. This role sits at the intersection of design, engineering, and emerging AI systems, with direct influence over the patterns, primitives, and architectural decisions that power M365 Copilot and the broader Microsoft ecosystem.
Job Responsibility:
Explore and apply emerging AI tools (LLMs, prompting workflows, generation pipelines, evaluation loops) as part of the default design-system workflow
Prototype and build practical utilities that accelerate concept → shippable system artifacts (components, tokens, documentation, integration workflows)
Define how AI models interface with Fluent libraries and foundations
Define system architecture and scalable foundations across tokens, components, documentation, and usage patterns
Establish lifecycle standards for design system assets
Create durable “ways of working” that keep design intent aligned with implementation
Translate product experimentation into reusable system primitives
Partner with Engineering and PM to define long-term design-system strategy and sequencing
Drive clarity around architectural decisions, governance, and adoption models
Make hard-to-undo decisions visible, testable, and scalable
Lead cross-discipline reviews and workshops to align designers and engineers around system-level decisions
Raise the overall craft and technical fluency of the organization
Requirements:
Master's Degree in Industrial Design, Product Design, Human Computer Interaction, User Experience, Interaction Design, or related field AND 6+ years experience working in product or service design
OR Bachelor's Degree in Industrial Design, Product Design, Human Computer Interaction, User Experience, Interaction Design, or related field AND 8+ years experience working in product or service design