Kelli Kreiter
Principal Product Designer

What this taught me: that the next frontier of collaboration isn't between people — it's between people and agents. Leading design for agentic experiences means holding both the near-term usability and the longer-horizon question of what it means for software to act on your behalf. The hardest design problems here aren't visual. They're about trust, legibility, and control.

What this taught me: how to design at the center of a product hundreds of millions of people depend on daily. Teams Core is the surface where work actually happens — meetings, chat, presence, collaboration. Working here meant every decision had real stakes, and that shipping slowly was itself a kind of risk.

What this taught me: that platform design is a different discipline than product design — you're not just designing an experience, you're designing the rules by which thousands of other experiences get built. Seven years on Teams Platform gave me a deep fluency in extensibility, developer ecosystems, and the long-term consequences of foundational decisions.

Architecture trained me to think in systems, constraints, and the experience of moving through space — which turns out to be a remarkably good foundation for designing software. Playing D-I soccer at the same time taught me that high performance and deep collaboration aren't opposites. Both are still shaping how I work.