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About jCode Studio

Hi, I'm Joan — the creative developer and UX designer behind jCode Studio LLC™. I blend technical expertise with artistic expression to build digital experiences that feel as good as they look.

My expertise

What I Do

From concept to launch — I handle both the design and the code, so nothing gets lost in translation.

Web Development

I build clean, performant, and scalable web apps with React and Next.js — writing code that's easy to maintain, fast to load, and a joy to use.

ReactNext.jsTailwind CSSTypeScriptREST APIs

UX + UI Design

I design with users in mind — mapping flows, building wireframes, and crafting interfaces that look beautiful and feel effortless from the first click.

FigmaUser ResearchWireframingPrototypingDesign Systems

Accessibility

I bake accessibility into every layer of the product — from semantic HTML to keyboard navigation — so no one gets left behind.

WCAG 2.1 AAARIAKeyboard NavScreen ReadersColor Contrast

Tools & Technologies

The modern stack I use to bring ideas to life — fast, accessible, and built to scale.

Technologies: React, Next.js, Tailwind CSS, JavaScript, Framer Motion, GitHub, TypeScript, Python, Figma, Vercel, Node.js, Angular, Sanity, Supabase

Credentials

Certifications

Professional certificates that formalize the skills I use every day.

Google

Google UX Design Certificate

  • Foundations of User Experience (UX) Design
  • Start the UX Design Process: Empathize, Define, and Ideate
  • Build Wireframes and Low-Fidelity Prototypes
  • Conduct UX Research and Test Early Concepts

Meta

Meta Front-End Developer Certificate

  • Introduction to Front-End Development
  • Programming with JavaScript

How I work

My Approach

Great digital experiences don't happen by accident — they're built with intention at every step.

User First, Always

Every decision I make starts with the person using it. Before any design or code, I map flows, uncover friction, and look for moments where the experience can genuinely delight someone.

Accessible by Default

I hold myself to WCAG standards on every project — not because I have to, but because building for everyone makes the product better. Inclusive design isn't an add-on; it's the work.

Creative Partner, Not Just a Coder

I push back when something doesn't serve the user, bring ideas nobody asked for, and treat every project like I have a real stake in its success — because I do.

The jCode Journey

From Chapman's CS labs to App Store launches — the full story.

2018Education

Chapman University — CS & Business

Started a dual-track B.S. in Computer Science and Business Administration. Joined Girls Who Code, the Korean American Student Association, and played on the softball team.

2021Study Abroad

Yonsei University — Seoul, South Korea

Exchange student at Yonsei University with a game development internship in Seoul. Served concurrently as VP of the Korean American Student Association at Chapman.

2023Milestone

Graduated Chapman + Google PM Certification

Earned my B.S. in Computer Science & Business Administration. Immediately pursued professional development — completing the Google Project Management certification to round out the technical foundation with structured delivery skills.

2024Career

Founded jCode Studio LLC

Launched my own digital studio offering full-stack web development and UX/UI design. First contracts included Mental Freedom® and LifeFit Matrix for Olver International. Completed Google UX Design certifications and became Head Softball Coach at Lake Forest Academy.

2025Impact

Safe Space for Students — 15k Users in Week One

Designed and built The Safe Space for Students for Crime Stoppers of Houston and The John M. O'Quinn Foundation — the largest project I'd taken on in scope, complexity, and civic impact. 15,000+ users in the first week. Also designed the GGRC 2025 Annual Report and was named ISL Head Softball Coach of the Year at Lake Forest Academy.

2026Launch

My Drink Diary — App Store Launch

Solo-designed and developed My Drink Diary: an iOS social drink-logging app built with React Native, Expo, and Firebase. Handled everything from concept and UX to branding, development, and the App Store launch.

Still writing the story →

Beyond the portfolio

A little more about me

Origin Story

Illinois State Science Fair

Won 1st place in 7th grade — and was the only girl competing in the computer science category. That moment lit a fire.

World Traveler

안녕하세요!

Lived in South Korea for a full year, studied at Yonsei University in Seoul, and still speaks the language.

Fur Baby

Cat Mom to Kiwi

My kitten Kiwi is the unofficial mascot of jCode Studio. She supervises every design review from my desk.

Café Connoisseur

Matcha Devotee

My drink of choice, always. On a lifelong quest to find the perfect matcha latte in every city I visit.

Bookworm

50 Books, One Year

My 2026 reading goal. Fiction, design, tech, and everything in between — every book is a new perspective.

Plant Parent

Certified Green Thumb

My home is a mini jungle. Every plant has a name and — knock on wood — they are all thriving.

Coach

High School Softball Coach

Head coach for a high school softball team and ISL Coach of the Year. Same passion, different field.