Portfolio — Jay Lee39.7392° N / 104.9903° W — Denver, CO

Hi, I’m Jay.

Product designer in Denver, at Deloitte Digital — turning messy problems into interfaces people love.

Denver, CO Deloitte Digital Product Design

Product Design+Visual Design+UX Design+UI Design+Prototyping+Typography+Design Systems+Interaction Design+Branding Identity

Work

Index — 10 ProjectsClient · Role · Year

Digital Retention Experience

A digital retention experience for a telecom company — redesigning the journey for customers looking to cancel their internet or TV service.

Telecom · Product Designer · 2025

Design System Governance

A consulting engagement to build up a national retail brand’s design system and design governance.

National Retail · Design Consultant · 2026

Health App Redesign

A redesign of a health app from a pharmaceutical company — used by patients to log their medication usage and find health information.

Pharmaceutical · Senior UI Designer · 2025

Hotel Website Brand Pull-Through

A global hospitality company operates a large portfolio of distinct hotel brands — but their websites all looked and felt the same.

Global Hospitality · Senior UI Designer · 2021

Consumer Insights App

An internal iOS insights app for a global technology company. Data scientists publish findings to the app; company leadership reads them and acts quickly.

Global Technology · UI Designer · 2019–2020

myColorado

As the State of Colorado's official mobile app, myColorado provides a simple, secure and convenient way to access state services right from the palm of your hand.

Mobile App · Lead UX/UI Designer

See Mama Bee

Lifestyle app for the modern mama. Features include tracking their lifestyle choices and the allergies of their minis through a fun, playful interface.

Mobile App · Interface Design

EnVision

A guided visualization app designed to help you overcome what holds you back from living your best life.

Mobile App · UX/UI & Branding

Firepoint

A customer-relationship management software specifically for a real estate agents.

Mobile App · iOS & Android Design

Helping Habit

Helping Habit aims to be a bridge between volunteers and nonprofits.

Nonprofit · iOS & Web App

About

I’m a product designer. What I love about my job is solving various problems every day for many different fields, and I’m a prototyping nerd, I’m obsessed with trying and learning all the new tools, plugins, and services out there.

Outside of the office, I try to spend time with my kids as much as I can. I love photography with my vintage-looking camera Nikon Df. And, as a former breakdancing daddy, I love to go to the dance studio with my son Jackson, I used to be a decent dancer, but now I’m like “hold my beer and watch this”.

If you want to work with me or just want to chat, please don’t hesitate to reach out to me. ☕️

Thanks!

✉️ sotimeart@gmail.com

← Work

Digital Retention Experience

A digital retention experience for a telecom company — redesigning the journey for customers looking to cancel their internet or TV service. The goal: respect the user’s intent to leave, while giving the business a fair chance to retain them.

Client

Telecom company · Client confidential

Role

Product Designer, 2025 (approx. 6 months)

Team

PM and two designers (including me).

Problem

Customers who wanted to stop their internet or TV service faced a poor exit experience — and the business had no structured way to present alternatives before they left.

Key decisions

1. Make exiting easy — start from the user’s intent.

I improved the experience for users who want to stop their services, making it genuinely easy to exit. The tradeoff: what’s good for users isn’t automatically good for the business.

2. Earn the save: upsells, promotions, and clear calculations before exit.

To balance the business side, we added upsells and promotions into the flow — showing customers new offers with clear calculations of what they’d save or gain — before they complete the exit.

Recreated wireframe — client work anonymized for confidentiality.

Outcomes

Shipped a cancellation flow that makes exiting genuinely easy — no dark patterns.
Built structured save opportunities into the flow: upsells, promotions, and clear savings calculations presented before the final exit.

Reflection

Designing for the user who wants to leave and the business that wants to keep them forced every screen to be explicit about its tradeoff.

Full case study with visuals available in live portfolio reviews — contact sotimeart@gmail.com.

← Work

Design System Governance

A consulting engagement to build up a national retail brand’s design system and design governance. I audited their existing design system, hardened it with AI-assisted automation, and ran a governance workshop so their small design team could operate more professionally.

Client

National retail brand · Client confidential

Role

Product Design Consultant, early summer 2026 (approx. 3 months)

Team

Creative director, associate creative director, product designer (me), and a junior designer.

Problem

The client’s design system had gaps and inconsistencies — and maintaining it relied on slow, manual work. Beyond the system itself, the team lacked the governance practices to run design operations professionally.

Key decisions

1. Audit first: find the problems before fixing them.

I audited their existing design system to surface concrete problems and improvement areas, so every later change traced back to evidence rather than opinion.

2. AI + Figma MCP to harden the system and automate manual work.

I connected AI tooling with Figma’s MCP to make the design system more solid — particularly automating the time-consuming manual tasks — which improved efficiency.

3. A governance workshop, not just a handoff.

Rather than only delivering system improvements, I ran a workshop for the design system team on design governance — how the design team should operate to run well.

Outcomes

The client was very satisfied with the engagement.
The small design team now operates more professionally, with a stronger system and governance practices in place.

Reflection

A design system is only as strong as its governance — components without operating practices decay, no matter how well they are built.

Full case study with visuals available in live portfolio reviews — contact sotimeart@gmail.com.

← Work

Health App Redesign

A redesign of a health app from a pharmaceutical company — used by patients to log their medication usage and find health information. I led the UI redesign across key screens, making the app easier to use and more engaging.

Client

Healthcare/pharmaceutical company · Client confidential

Role

Senior UI Designer, 2025 (approx. 5 months)

Team

PM, three junior UI designers, one senior designer (me), and a creative director.

Problem

Key screens weren’t serving users well: medication selection was hard to use, and the resource screen — sitting front and center in the bottom navigation — felt like a settings page rather than a destination.

Key decisions

1. A new flow for the medication selection screen.

I created a new flow to make selecting medication easier for users.

2. Bottom navigation rebuilt with native iOS and Android components.

Instead of custom components, I redesigned the bottom navigation around native components. The tradeoff: less bespoke visual control, in exchange for significantly reduced dev effort — and navigation that feels familiar rather than foreign to users.

3. Resource screen rebuilt around the brand’s web design language.

The legacy resource screen felt like a settings screen, despite sitting in the middle of the bottom navigation. I referenced the company’s website — borrowing its hero sections and card styles — and turned the screen into a rich, engaging destination.

Outcomes

Widely used by the company’s medication users for logging their medication usage.
Became a go-to resource for users’ health information.

Reflection

The resource screen taught me how much framing matters — the same content feels like a settings page in one layout and a destination in another.

Full case study with visuals available in live portfolio reviews — contact sotimeart@gmail.com.

← Work

Hotel Website Brand Pull-Through

A global hospitality company operates a large portfolio of distinct hotel brands — but their websites all looked and felt the same, and guests couldn’t tell which brand’s site they were on. I redesigned the core UI components so each brand’s site expresses its own identity, applying brand assets so components look and feel like the brand itself.

Client

Global hospitality brand · Client confidential

Role

Senior UI Designer, 2021 (approx. 10 months)

Team

PM, dev team, and two senior UI designers (including me).

Problem

Dozens of brands shared one web experience. The sites were too consistent across brands — brand identity was lost, and guests were confused about where they were.

Key decisions

1. Brand-differentiated components instead of a one-size-fits-all system.

Rather than keeping every brand on identical components, I redesigned each component to carry more branding. The tradeoff: more design surface to maintain across brands, in exchange for an unmistakable brand identity on every site.

Recreated wireframe — client work anonymized for confidentiality.

Outcomes

Redesigned the component set across 15 brands, spanning luxury to affordable tiers.
Hotel websites now carry their brands’ identity — guests are less confused about which brand’s site they’re visiting.

Reflection

Across 15 brands I learned that identity lives in the details — the same component can feel like a completely different brand when the assets are applied with care.

Full case study with visuals available in live portfolio reviews — contact sotimeart@gmail.com.

← Work

Consumer Insights App

An internal iOS insights app for a global technology company. Data scientists publish findings to the app; company leadership — one level below the C-suite — reads them and acts quickly to reduce potential risk. The app also became the shared repository for insights and the conversations around them.

Client

Global technology company · Client confidential

Role

UI Designer, 2019.6–2020.3

Team

PM, lead designer, UX designer, UX researcher, UI designer (me), QA.

Problem

Leadership needed a fast, reliable way to receive data-science insights and act on them — and the organization needed one shared home for insights and the communication around them.

Key decisions

1. Accent color: the company’s signature blue instead of random color.

The POC used random colors. Since this was an internal product, I argued it should speak the company’s visual language and use the company’s signature blue as the accent color. In the native environment, accessibility color variants were already handled by the system, so this cost the team nothing extra. The team agreed.

2. Dark mode from the start.

I initiated the move to dark mode: battery life and screen brightness were real concerns for eye comfort at the time, and dark mode addressed both. The team and stakeholders agreed.

Validation: both decisions were reviewed and approved with the design team and stakeholders.

Outcomes

Shipped to the company’s internal enterprise app store.
Adopted by company leadership (one level below the C-suite): data scientists push insights to the app, and leadership views them and acts fast to reduce potential risk.
Became the shared repository for insights and related communications.

Reflection

When the audience is decision-makers under time pressure, restraint is a feature — clarity and speed beat richness every time.

Full case study with visuals available in live portfolio reviews — contact sotimeart@gmail.com.

← Work

myColorado

As the State of Colorado’s official mobile app, myColorado provides a simple, secure and convenient way to access state services right from the palm of your hand.

Project Type

Mobile app UX/UI design

Role

As a lead UX/UI designer, I developed high-fidelity wireframes, interactive prototypes, and user flows. In collaboration with a UX manager at State of Colorado OIT office, we conceptualized and turned abstract ideas into mobile solutions.

Skills

Sketch – Wireframe and screen design
InVision – Prototyping and client communication

User-flow

Features

With myColorado, you can:

Renew your driver license and vehicle registration
Store vehicle registration and insurance information in the digital wallet
Receive notifications about important state news
Use the State Services smart search function to quickly find official online government resources in one place

Outcome

The app was launched on both Play Store and Appstore. Some Coloradans already taking the advantage of simple and quick drivers license renewal by using the app.

← Work

See Mama Bee

SeeMamaBee is a lifestyle app for the modern mama. Features include tracking their lifestyle choices and the allergies of their minis through a fun, playful interface.

Project Type

Mobile app interface design

Role

Brainstormed features for the target audience, and created a visual interface to match the branding. Ensured design functionality with nutrition information API integration.

Skills

Sketch – Wireframe and screen design
Principle – Created animation to simulate micro interactions.
InVision – Prototyping and client communication

Features

Dashboard

In the dashboard screen, users can view all of the information, such as the mother’s nutrition tracking, a combined timeline of mom and children, and access to their own or their children’s profiles.

Mini Bee Tracking

Once mothers register their children, they can track allergies, symptoms, and reactions. Users can also upload photos of reactions if they want. Mothers can check their children’s conditions in bar graphs as well as a timeline.

Log Meal

Tracking nutrition is important for pregnant moms. We designed a nutrition log screen based on Nutritionix, the food log API.

Outcome

← Work

EnVision

EnVision is a guided visualization app designed to help you overcome what holds you back from living your best life.

Project Type

Mobile app UX/UI design and branding

Role

Created the branding assets such as the logo and brief branding guidelines and designed all of the flows and screens for the mobile application.

Skills

Sketch – Wireframe and screen design
InVision – Prototyping and client communication

User-flow

Features

Easy Onboarding and Subscription

For any public user facing app, an easy onboarding process is very important. I wanted first-time users to comprehend the core concept of the app and set a reminder for their first meditation session during their initial use.

Timeline and Play

The core functionality of the app is listening to meditation guides and keeping a record. We came up with the stacked triangle shape timeline because it is aesthetically pleasing and utilizes the screen space more efficiently. The triangles are the call-to-action button as well as status indicators for each session.

Explore Packs/Singles

We used duotone images to make the entire app look more consistent and professional. We wanted to emphasize subjects with relevant images.

Outcome

The app is currently live on the App Store. Rated 5.0 out of 5 with 47 ratings.

← Work

Firepoint

Firepoint is a customer-relationship management software specifically for a real estate agents.

Project Type

iOS and Android mobile app design.

Role

I conceived of new features for the mobile application with a PM and UX designer on the client side, and designed mobile app screens based on the existing web application.

Skills

Sketch – Wireframe and screen design
InVision – Prototyping and client communication

Features

Customizable Dashboard

Each real estate agent can set what they want to see when they launch the app according to their preferences. I thought this was one of the most important factors to improve user experience, and I designed the customizable dashboard, where each user can toggle to show or hide certain sets of information and drag & drop to change the order of the information displayed.

Tasks

Although, the tasks feature is available on the existing web application, I added a push notification feature to make its functionality more valuable. It helps to agent keep an eye on their customers anytime and anywhere.

Leads Management

Managing leads is the core feature of the app. I strived to create a design in which agents are able to search, view, categorize, and communicate with leads as easily as possible.

Communication

The CRM platform that runs in mobile devices brings an amazing synergy.

Outcome

The app is currently live on both the App Store and Google Play. Current web application users can now enjoy a fast and smooth native mobile app experience.

← Work

Helping Habit

Helping Habit aims to be a bridge between volunteers and nonprofits. It allows a nonprofit organization the flexibility to post all of their events on a platform that is easy to use and a way to make direct connections with new and existing volunteers.

Project Type

iOS mobile app
Web app
Admin portal

Role

Designed the product in two different platforms, an iOS and web.

Skills

Sketch – Wireframe and screen design
InVision – Prototyping and client communication

Discover

Users can search, filter and view volunteer events and can switch to mapview.

Donations

Users can see all the non-profit organizations that is accepting donations. Users can see the organization’s information and dotate for one-time or set recurring donations.

Outcome

The web and iOS apps are live, please check out the site. Helping Habit

Visual • UX • UI • Product Design

Vision-driven professional with career-long record of digital product design, and management success for leading organizations.

Professional Experience

Deloitte Digital — Senior Product Designer

Denver, CO | May 2019 – Present

Responsible for designing digital products focusing on UI in mobile and web platforms.
Worked with major tech corporations for the entire year designing multiple products. Presented ideas in a very organized and thoughtful way that gave the client confidence that the suggestions were rooted in deliberate decisions.
Designed responsive web components for Adobe Experience Manager. To provide better BX and UX, I have analyzed existing web components and created new web component library that were more cohesive with groups of brands.

AppIt Ventures — Lead UX/UI Designer

Denver, CO | December 2014 – May 2019

Mobilize the design team in delivering high-quality projects by managing bandwidth, mentoring junior designers, evaluating individual performances, and delegating projects to the appropriate talents.
Cultivate positive relationships with clients by defining their needs, collaborating on products, roadmaps, creating consistent and intuitive product solutions, adhering to the constraints of the product’s technical framework, and maintaining project transparency and client confidentiality.
Created interactive mobile/web application mock-ups, prototypes, user-flows, and wireframes in an agile work environment, troubleshooting and resolving issues as necessary.

LYNNEL Art to Form — Graphic Designer

Denver, CO | July 2013 – February 2015

Liaised with clients to define digital artwork specifications, providing regular project updates.
Designed effective promotional materials such as email campaigns and brochures by HTML/CSS, Mailchimp and Adobe Creative Suites.
Conceptualized, shot, edited the marketing video; support customers in understanding the full design process.

Education and Credentials

Bachelor of Fine Arts (B.F.A.)

Digital Design, 2014
University of Colorado, Denver, CO

Associate of Arts (A.A.)

Intermedia Art, 2009
Kaywon School of Art & Design, Seoul, South Korea

Certifications

Adobe Certified Expert

Photoshop CC
April 2016

Proficiencies

Design Proficiencies

Prototyping
Wireframing
Pixel Perfect Design
Interaction Design
Visual QA
Typography
Iconography
Branding Identity
Design System

Software Proficiencies

Sketch
Figma
InVision
Principle
Zeplin
Photoshop
Illustrator
InDesign
Premiere
After Effects
WordPress
HTML/CSS

Interests

Breakdancing
Golf
Fishing
Indoor Plants