• Carol Lei is a product designer based in New York City. She works between systems, tools, and emerging technology—turning complex ideas into clear, useful experiences.
• Currently, she is a senior product designer at Mercury, leading the AI interfaces team, thinking through design questions concerning agentic financing and automated workflows.
• Her work at Mercury began on Dashboard Experience, shaping the places customers return to every day.
  
  In 2022, she designed percentage-based auto-transfer rules.
• In 2023, she rethought user permissions and launched custom account access, while helping shape a new vision and redesign for Mercury's home.
• In 2024, she launched Reimbursements and contributed to a new billing and subscription experience.
• In 2025, she worked on Insights and the foundations of Mercury's next AI product, moving between product strategy, interaction details, and the systems beneath them.
• In 2021, she was a product design intern with Apple's Claris team, exploring a reimagined no/low-code application builder from broad mental models to tested micro-interactions.
• Away from product work, Carol draws still lifes and figures in ink and charcoal. She hopes to animate a short film someday.
• She also writes creative essays about life, art, and philosophy, and is developing a series of short stories.