NuSmile

NuSmile

Building a scalable email system

Building a scalable email system

Healthcare, Marketing

Healthcare, Marketing

Design System, Email

Design System, Email

2025

2025

Over the course of a year, I developed an internal design system to streamline email production at NuSmile. With a high volume of campaigns each month, the team needed a scalable solution to ensure brand consistency across content types and contributors. The system now enables faster, more efficient creation while reducing redundancies—and is actively used by designers across the team. This project strengthened my ability to design for scale, optimize workflows, and build systems that grow with evolving needs.

Over the course of a year, I developed an internal design system to streamline email production at NuSmile. With a high volume of campaigns each month, the team needed a scalable solution to ensure brand consistency across content types and contributors. The system now enables faster, more efficient creation while reducing redundancies—and is actively used by designers across the team. This project strengthened my ability to design for scale, optimize workflows, and build systems that grow with evolving needs.

Contributed to building an email-focused design system to improve production efficiency. The system uses a modular, plug-and-play structure and includes components compatible with various product logos and use cases.

Contributed to building an email-focused design system to improve production efficiency. The system uses a modular, plug-and-play structure and includes components compatible with various product logos and use cases.

Plug and Play

Plug and Play

The plug-and-play system increased production speed by 2.5X, cutting production time by 5 days.

The plug-and-play system increased production speed by 2.5X, cutting production time by 5 days.

Application

Application

Easy to scan for users. Fast to build for the team.

Easy to scan for users. Fast to build for the team.

Created a modular system of cards and sections to support flexible email layouts. Designed illustrations, icons, gradients, and typography for each module. Over 19 emails were produced using this system, with 3–4 modules per campaign.

Created a modular system of cards and sections to support flexible email layouts. Designed illustrations, icons, gradients, and typography for each module. Over 19 emails were produced using this system, with 3–4 modules per campaign.

Result

Result

Heat map shows stronger engagement across all buttons, with higher scroll depth, click rates, and as a result, more sales conversions.

Heat map shows stronger engagement across all buttons, with higher scroll depth, click rates, and as a result, more sales conversions.

Cross-product integration using a modular design system approach.

Cross-product integration using a modular design system approach.

Dave Sung-il Hwang

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Dave

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