Kelley M Pelleg
rnabg.jpg

RNA Design System

RNA is a Design System I created while lead system designer for the One Medical Care Team UX from 2021-2023. For privacy and confidentiality, design examples and detailed case studies are available by request.

Above Cover Image was developed during the system branding activity and created in collaboration with Jessica Lim, a UX designer in our first system steering committee cohort.

Overview

1Life is One Medical’s internal care delivery platform, used daily by ~3,000 providers and administrators. Over eight years, it evolved from a single app into a fragmented ecosystem of 11 micro-frontends supporting clinical care and operations.

The lack of a design system led to inconsistent UI patterns, design–engineering drift, slower product delivery, and risk in patient-safety.

My Role

I was the first dedicated design systems designer for care delivery tools and served as the creator and UX lead of the 1Life design system.

I owned system strategy, visual language, token implementation, governance, and adoption—partnering with designers and engineers across three departments (~70 contributors).


What I delivered

  • Established the first visual design language and style guide for Care Team tools, aligning two core products under a shared identity

  • Led adoption of a component framework and guided multi-year migration across 11 micro-frontends and four primary user roles

  • Built and maintained Figma libraries and system documentation; implemented styles directly in code during periods of limited engineering support

  • Created a cross-functional steering committee to scale contribution, mentor designers and engineers, and move components from concept to production

  • Introduced a context framework to align teams on product boundaries, users, and cross-tool workflows


Impact

  • Unified a fragmented care delivery ecosystem used by ~3,000 clinicians and admins

  • Reduced design–engineering discrepancies and costly development delays

  • Delivered a critical system pattern that eliminated minor patient safety events previously tied to inconsistent UI behavior

  • Achieved 100% UX team participation in pattern audits and consolidation

  • Established ongoing system health measurement through CSAT and SUS survey


Please reach out for design examples and read more about my role and responsibilities on my resumé. Thank you for understanding.