John Sun

About

I like solving complex problems, either with simple solutions, a systematic approach or both. I’ve been very enthusiastic about agentic workflows in design and have developed a personal design-to-code approach. I’ve developed tokenized design systems and scalable design-to-code pipelines (Figma MCP, StorybookUI). I have extensive experience in UI/UX design across e-commerce, data analytics, and education technology, and I’ve led migrations to modern design tooling to speed delivery. Please view my work at johnsun.design.

Experience

• UI/UX Designer · Toll Brothers08-01-2021 – 01-01-2026

  I migrated the company design workflow to Figma, established a tokenized digital design system, and developed a design-to-code workflow utilizing the Figma MCP and StorybookUI. I used this workflow to generate interactive code prototypes. I conducted self-driven tests to increase conversion and improve UX on the main site. I provided wireframes and prototypes for stakeholder initiatives involving the main site.

• UI/UX Designer · Excellis Interactive07-01-2019 – 04-01-2021

  I worked as an UI/UX design consultant to the Comcast TPX team on two separate internal mobile apps. The apps provide Comcast employees and contractors a way to easily register guests, book rooms, request time off, and log hours. In a design team of two, I focused on delivering UX research, wireframes, prototypes, as well as assessing product requirements and writing developer tickets.

• UI Designer · Turn5, Inc.05-01-2018 – 05-01-2019

  I delivered high-fidelity desktop and mobile mockups for all three of Turn5's e-commerce sites. I defined project goals with the design lead, BAs, and developers. I carried UX initiatives from conception to completion and wrote corresponding developer tickets. In A-B tests, my proposed design patterns improved interaction metrics by 7-15% over controls. I also introduced Principle as an animation tool to quickly make videos to explain complex UI interactions to developers.

• UI/UX Designer · Designation07-01-2017 – 02-01-2018

  I learned UI/UX design and agile development process by working on three client projects. With each new project, I discovered more about my design process in creating high fidelity wireframes and prototypes for web and mobile. I performed user testing to gain feedback and made iterations on my designs.

• Designer · Humanlytics01-01-2017 – 06-01-2017

  Humanlytics is a data analytics startup focused on providing automated business insights related to Google Analytics to SMBs. As the designer, I created low- and high fidelity wireframes for Humanlytic's MVP. I also made custom graphic assets and infographics for Humanlytics marketing.

• Creative Fellow · TechChange06-01-2016 – 08-01-2016

  An education startup that provides online classes showcasing technology used in international development. Working with a small creative team, I produced custom illustrations, hand-drawn animation, and edited video lessons.

• Chester Community Fellow · Swarthmore College06-01-2015 – 08-01-2015

  I received the Chester Community Fellowship to work as part of a cohort at Swarthmore College. I taught three high school students 2D hand-drawn animation over three weeks. I designed a project-oriented curriculum for my students, teaching them the basics of animation on TVPaint and encouraging personal creativity on projects. My other duties included student counseling, conflict facilitation, and assisting other teachers in the program.

Education

• Swarthmore CollegeBachelor of Arts (B.A.), Biology, General

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