Hi I’m Stephanie Bowden a senior product designer
specializing in design systems and data visualization, with a focus on making complex, data-heavy products feel clear and intuitive. At Klaviyo, I was a founding designer on the design system team, where I built the core charting components and interactions used across the platform and helped shape the strategy for analytics and AI. Before that, at Vertex, I led research driven design for scientific and patient support tools, including work that cut patient onboarding time by about 50% during a critical drug launch.
Ascent Design Systems
Klaviyo
As one of the founding designers on Klaviyo’s Design System team, I led the creation and evolution of a Data Visualization library that now powers analytics experiences across the platform. My work focused on enabling a team of 50+ product designers to build consistent and meaningful data experiences.
Agentic chart building
Klaviyo
I led design of an AI chat tool that turns customers’ natural-language questions into custom data visualizations and dashboards, so each interface is shaped by the customer’s needs instead of a fixed template. Partnering with engineering, I defined the tools and skills the LLM uses to query customer data and generate charts with plain-language insights.
Patient support
Vertex Pharmaceuticals
To prepare Vertex’s Patient Support team for a new launch, I researched their biggest workflow gaps and redesigned patient onboarding and data updates in their case management system. This halved the time per patient, reduced errors, and earned a company recognition with a Silver VOCAB award.