Hi, I’m Jerry. A product designer / engineer who ships. Previously, I was a Product Lead at Supra Labs.

AI Journey App

Inherit a local’s day, adapt it to your taste in one tap.

Blockchain

Implemented the function development through a UX case study.

Two Levooya app screens beside the Levooya wordmark

P2P Business

Buyers and travellers meet on one page instead of one by one.

Curves gym EIP app interface

EIP System

Managed and designed an EIP solution for the gym.

Product designer and hands-on builder focused on AI-native interaction. I designed and built Deejiar, an AI travel planner, from concept to App Store. My work turns model output into trustworthy product behavior: validating stops against real opening hours, computing routes, and letting people adapt an entire journey with one tap instead of writing another prompt.

Experience

Product Role

  1. Deejiar - AI Journey Planner2026.5 – Current

    Founder

    • Took Deejiar from concept to App Store — an AI itinerary planner built on inheritance, not prompting: users adopt a verified local’s journey and adapt it in one tap. Designed and shipped iOS and web; live in Tokyo and Taipei.
    • Shipped through an agent-driven workflow I designed on Claude Code and Codex — plan, build, inspect, commit, release as discrete commands — ten releases in two months.
  2. Blockchain - Supra Labs2021.7 – 2026.4

    Product Lead

    • Headed an agile team of 4 engineers to build SupraScan, Supra’s native blockchain explorer and a core ecosystem infrastructure. Reported progress to CEO & VP of Product weekly.
    • Provided the critical UI and API data layer that marketing, wallet, and ecosystem teams relied on to deliver their products and grow Supra’s ecosystem.

    Sr. UI/UX Designer

    • Established the semantic design system the whole product team built from.

UIUX Role

  1. Fintech - Formosa Financial2018.9 – 2021.4

    Implemented the function development through a UX case study

    • Led a UX research project and ran a UX case study that surfaced the pain points of the retail market. The C-suite decided to pivot the product from B2B to B2C on the strength of that report.

    Headed the design of the crypto asset management product

    • Controlled the consolidation and revision of outsourced designs to reach the criteria of the company’s market fit.
    • Defined the APIs and data flow with the backend division to make sure all design elements get the proper data, in order to enhance the effectiveness of the development process.
  2. Virtual Gym - Coretronic2017.7 – 2018.7

    Designed the Enterprise Information Portal system that ran its operations

    Led the design of the first digital gym in Taiwan (2018)

    • Organized product manuals and collected clients’ feedback with other department managers to reach final specification.
    • Created mockups and wrote collaboration tool tutorials to establish a new development workflow with the team, and the tutorials were written into the official handbook.
  3. P2P Business - Levooya2017.4 – 2017.6

    Took over and redesigned the app to publish on App Store

    • Took over the design system from the previous designers and designed the UI libraries for all devices on iOS.
    • Analyzed the market needs to depict business model canvas and value proposition reference that saved 2/3 of the research time compared with the previous method.
Jerry Lin

Product designer and hands-on builder, focused on AI-native interaction. I took Deejiar, an AI travel planner, from concept to the App Store on my own — product, interface, and the code behind it.

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