Sihan Sun, Designer in San Francisco, CA, United States
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Sihan Sun

Verified Expert  in Design


San Francisco, CA, United States
Toptal Member Since
July 3, 2021

Sihan is a well-rounded product designer working in the fintech, biotech, healthcare, and other data-rich SaaS domains. She's led and managed the entire design lifecycle—from research and all-fidelity mockup iterations to the full product implementation. Sihan specializes in web application design and the creation of design systems.


Work Experience

Product Designer

2021 - PRESENT
  • Served as the first and the only in-house designer at SourceScrub; was in charge of the design of web platform and internal researcher management portal.
  • Built the design system from scratch across different platforms and devices.
  • Contributed to new feature ideation, iteration, design, and implementation.
Technologies: Adobe, Figma, User Experience (UX)

Senior UI/UX Designer

2020 - 2021
  • Redesigned the SaaS project: a Nexus data management system for internal R&D users.
  • Conducted ten deep user interviews and collected the data points to create. The existing user journey map and problem analysis.
  • Prioritized the redesign scope with an impact-vs-effort diagram.
  • Designed the wireframes and high-fidelity prototypes for testing.
  • Created the design system and branding from scratch.
  • Unified the brand identity, typeface, and color palette; also delivered the CTA style and card component to developers.
Technologies: Adobe, Figma, Principle, Sketch, User Experience (UX)

UX Researcher

2019 - 2020
  • Built the live-streaming web application from scratch and fully help withe implementation.
  • Conducted user research of the live-streaming market which included leading user interviews and translating insights into workable feature designs.
  • Designed the main booking and watching flows, generated the IA, and worked on wireframes; also tested and iterated to successfully help users navigate efficiently.
  • Designed the viewer experience prototypes and drew the illustrations.
Technologies: Figma, User Experience (UX)

Product Designer

2017 - 2018
  • Redesigned a SaaS project for customer and internal management —increasing the DAU and sales by 32%.
  • Deeply investigated patients and the internal staff, built the stakeholder map, and translated user pain points and requirements into actual insights and designs.
  • Proposed wireframes for a customer’s dashboard, recruited users to. test, and iterated three generations of wireframes which improved work efficiency (gleaned from highly positive feedback).
  • Redesigned the high-fidelity animation prototypes and delivered new mockups and a design library to the engineering teams.
Technologies: Figma, User Experience (UX), UX Design
2018 - 2019

Master's Degree in UX Design

University of California, Berkeley - Berkeley, CA, United States