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


Figma, Sketch, Adobe, Principle, Adobe Creative Suite, Photoshop CS5, Android Studio, Adobe Illustrator

Industry Expertise

Healthcare, Food


UX Design, Web UI, SaaS Design, Web Design, Web UX Design, UI Design, Wireframing, User Experience (UX), Enterprise SaaS, Data, Fintech, Web Dashboards, Design Systems, Motion Interaction, Iterative Design, User Journeys, User Journey Maps, E-learning, LiveStream, Material Design, Pattern Design, SaaS, Desktop App Design, Mobile App Design, Android App Design, B2C, Mobile App UI, Web UI Design, Motion & Animation Design, Interaction Design (IxD), User Flows, eCommerce UX, Design Libraries, User Research, Ideation, Low-fidelity Mockups, High-fidelity Mockups, Educational Videos, Tech Conferences, Usability Testing, Biotechnology, Data Visualization, Website Redesign, Internal Apps, Data Management, Low-fidelity Prototypes, Design, Feature Prioritization, Grid Systems, Healthcare Management Design, Dashboard Design, User Interviews, Wireframe to Product, Healthcare IT, App UX, Mobile UI, Conceptual Design, Personas, Storyboarding, User Interface (UI), UI Motion, Web Components, Apps

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