Community member app
UP-Dream
A place for community, reflection, and the next small step.
- TypeScript
- React Native
- Expo
- PostgreSQL
Software developer · Korea → Japan
From an everyday need
to an app people can use.
I’m Yi Suheon. I plan, design, develop, and release iOS apps and the services behind them. My work connects native interfaces with careful data handling and practical daily workflows.
03Apps released on the App Store
01Developer, from planning to release
1 yearExchange at Tokyo City University
01 / Selected work
Built for real routines.
Two product families, three released apps. Each case study connects the interface to the decisions behind it.
Native operations app
UP-Dream Admin
The right tools for the people looking after a community.
- Swift
- SwiftUI
- URLSession
- Keychain
Native coffee journal
Naerim · 내림
Remember what made this cup worth making again.
- Swift
- SwiftUI
- SwiftData
- WidgetKit
Screenshots use synthetic demo data. Project pages include capture dates and full-size views.
02 / Engineering
Technology, with a purpose.
The tools I use, connected to work you can inspect.
Native interfaces
Swift · SwiftUI · Observation
Naerim and UP-Dream Admin; native integrations in the Expo member app.
Data that keeps its meaning
SwiftData · Foundation · SQL
Historical brew snapshots, explicit saves, session recovery, and transactional attendance changes.
Connected services
TypeScript · React Native · React · PostgreSQL
The UP-Dream member app, web administration, shared API, and permission-aware data access.
Delivery and verification
GitHub Actions · XCTest · AWS ECS Fargate
Recorded regression checks, container deployment configuration, and source-linked release evidence.
A small piece you can run
Recipe quantity validation
Explore Naerim’s numeric boundaries, proportional water scaling, and draft preservation in a standalone Swift package.
03 / Collaboration
Work built with others.
Stack Snapshot
Backend contributor · six-person team
Implemented QR generation and photo-download functionality for an event photo-booth service. The team used Java, Spring Boot, JPA, and MySQL.
See my contributionGyeongju Hackathon 2024
Python / Django backend · Team Null
A tourism experience service combining reservations with photo-layer collection and composition. Our team received second place overall.
Explore the team project04 / About
Curious about how things work.
Careful about how they feel.
My background is in Computer Engineering at Dongguk University WISE. A year in the Faculty of Information Technology at Tokyo City University shaped my goal of working as a software developer in Japan. I enjoy turning a familiar routine into software that is easier to use and easier to maintain.
- Dongguk University WISE
- Computer Engineering
- Tokyo City University
- One-year exchange · Faculty of Information Technology
- StackUp · 2nd cohort
- Collaborative learning and programming practice · 2023
05 / Contact
Let’s talk about
what comes next.
I’m interested in software development opportunities in Japan and conversations about useful, thoughtfully built products.
suheon777@icloud.com GitHub profile