Nam Woo-hyun · Frontend-focused full-stack developer

I build operational systems and shipped products with React and Next.js.

For over three years, I’ve connected interfaces and APIs across public-sector, transportation, and subscription products—from an iOS and Android launch to public-sector delivery and pilot operations.

01Pilot

KCSCOperational UI for digital construction standards

02Delivered

K-waterGIS facility lookup system · KMIS

03Launched

iOS · AndroidJango · live on both major app stores

View selected work

Experience & skills

Operational UI · Shipped product

The operational UI I work on now, and the product I shipped

A live construction-standards pilot and an independent product released on both the App Store and Google Play, shown with equal weight.

ANONYMIZED WORKFLOW · OPERATIONAL MAPKCSC Digital Construction Standards Pilot Support System

Hierarchical editor

01Standards

→

02Review items

→

03Variables

→

04API Center

Tree

Editor

Query

Role

A standards-map flow that keeps selection, editing, and execution context together

C&Net · Dec 2025 – Present

KCSC Digital Construction Standards Pilot Support System

Pilot operation · Aug 2026

My Role · Frontend Development & UX EnhancementProblemDeep standards data from facilities to variables made it easy to lose the current selection and editing context.

Verified outcomeAs of August 2026, the live pilot provides standard and user libraries, the API Center, software and manuals, and support boards.

Next.js 14

React 18

TypeScript

Mantine

Personal Project · 2026 · App Store and Google Play launch · v1.4.0

Jango

Live on both stores · v1.4.0

My Role · Product · Mobile · Backend · Admin · InfrastructureProblemPeople missed expiring ingredients because tracking, recommendations, and shared spaces lived in separate flows.

Verified outcomeVersion 1.4.0 is live on both the App Store and Google Play for iOS and Android.

React Native

Expo

TypeScript

NestJS

GitHub

View on the App Store

View on Google Play

Selected Projects

Work that turns operational complexity into clear flows

All Projects

ANONYMIZED WORKFLOW · LOCATION DATAGIS Facility Lookup System

Delivered system

01Map search

→

02Facility marker

→

03Detail panel

→

04Action

Map

Marker

Panel

Responsive

A GIS workflow that brings location data and details into one navigable interface

KMIS Co., Ltd.

GIS Facility Lookup System

Delivered

My Role · Frontend Development

Verified outcomeImplemented a GIS business UI connecting map markers, popups, lists, and detail panels.

ANONYMIZED WORKFLOW · OPERATIONS DATABIMS Bus Information Management System

Admin interface

01Buses

→

02Routes

→

03Operations

→

04Save & validate

Table

Filter

CRUD

Spring API

An admin flow for querying and managing transportation data around real work

C&Net

BIMS Bus Information Management System

In Development

My Role · Full-stack Development

Verified outcomeAdded bus, route, and operations workflows, map monitoring, operations dashboards, and access history screens to the admin system under development.

Experience

Experience across the product surface and its operations

View full experience

C&Net

Associate · Full-stack Developer (Frontend-focused)

Dec 2025 – Present

KCSC digital construction standards pilot support system

BIMS web and application development

Get&Show

Associate · Full-stack Developer

May 2025 – Dec 2025 · 8 months

In-house subscription web and app platform

KMIS Co., Ltd.

Associate · Frontend Developer

May 2023 – Jan 2025 · 1 year 9 months

GIS-based facility lookup web application

Core capabilities

Three ways I can contribute from day one

View all skills and experience

Clear UI for complex work

I structure trees, tables, multi-panel layouts, and maps around the user's working sequence.

ReactNext.jsTypeScriptTanStack QueryZustand

Connected through the data layer

I understand APIs and data models, connecting frontend, backend, and admin tools into one flow.

NestJSSpring BootPostgreSQLREST API

Verified and delivered

I treat testing, deployment, and monitoring as product work and deliver for real environments.

JestRTLDockerJenkinsSentry

I’m looking for the next product and team I can contribute to

If you would like to discuss a frontend role or product work, send me an email.

skadngus14@naver.com

GitHub