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Resume

Ju-cheol Park

Web & Mobile Developer

jukrap628@gmail.comjukrap.vercel.appgithub.com/jukrap

Skills

Languages
  • TypeScript,
  • JavaScript,
  • Java
Web
  • React,
  • Next.js,
  • Vite,
  • TanStack Query,
  • Zustand
Mobile / hybrid
  • React Native,
  • Expo,
  • Android,
  • Gradle
Testing / monitoring
  • Vitest,
  • MSW,
  • Storybook,
  • Sentry
Tools & Data
  • GitHub Actions,
  • Jenkins,
  • Docker,
  • MariaDB,
  • SQLite

Experience

Triphos Co., Ltd.

Web & Mobile Developer

2026.02 ~ Present

Settlement Operations Platform

Built the administrator web app for vehicles, drivers, fees and settlement, including key server APIs and data persistence.

  • Built shared editing tables with keyboard controls and draft retention after failed saves.
  • Built Excel previews with invalid-cell correction, server revalidation, all-or-nothing saves, and repeat-request handling.
  • Added action targets, changes, and input-error reasons to logs; reorganized the administrator log screen around user actions.

Logistics Operations Web & Printing App

Search, reservations, Excel imports, and Android label printing

  • Built shared tables, forms and modals; connected search, reservations, Excel previews and print requests to server APIs.
  • Reduced the initial JavaScript entry file by about 74% with on-demand page and Excel code loading (build output size).
  • Connected WebView print requests to an Android bridge and Bluetooth printers, handling device selection, permissions and cancellation.

Stock Administration Web

Complete React frontend built against MSW mock APIs

  • Built shared tables, filters and modals for account, stock and order screens, with column pinning, resizing and reordering.
  • Kept filter selections separate from applied query conditions; updated TanStack Query when the user submitted a search.

Daily Information App

Added weather screens and server-side public API integration to an existing Android app.

  • Cached responses by region and data type with matching expiry periods. Displayed current weather and core forecasts first, then supplementary data as it arrived.

Privacy Protection App

Added email-breach and deepfake checks to an existing Android app using external APIs.

  • Built input, inspection request and result screens, with image previews and Android file selection.

TIS

University Intern / Planning and data automation support

2022.06 ~ 2022.07
  • Planned factory energy management screens in Figma and documented database tables and an ERD.
  • Analyzed the KEPCO Power Planner and wrote a Python crawler to collect energy data.
Ju-cheol Park01 / 02

Resume

Ju-cheol Park
Web & Mobile Developer

Projects

C. Donghae

Frontend developer / team of three

2024.10.04 ~ 2024.10.06

Built a map-based web service for Donghae Line passengers to find live transport and nearby information.

  • Worked with two backend developers using Swagger documentation to connect APIs and build the main Google Maps screens.

ShareBBy

React Native app development and Firebase integration

2024.04 ~ 2024.06

Developed Android support and community features for an app that helps people share hobbies and find companions.

  • Built post and comment editing, location filters, sorting, pull-to-refresh, and infinite scrolling.
github.com/jukrap/archived-rn-ShareBBy

Posture Teacher

Android developer / team of two

2022.07 ~ 2023.05

An Android app that classifies posture from body landmarks in camera frames and records exercise time.

  • Built a MediaPipe AAR on Ubuntu and used landmark angles and lengths to classify posture and measure hold times.
github.com/jukrap/archived-Posture-Teacher

AI Agent Playbook

Solo developer

2026.06 ~ Present

Built a harness that helps AI coding tools carry project rules and work history across sessions. Added selected skill installation, migration and recovery while preserving existing files.

  • Implemented CLI and MCP access to registered repositories’ records. Paginated long responses and rejected continuation after the underlying source changed.
github.com/jukrap/ai-agent-playbooknpmjs.com/package/ai-agent-playbook

Education & activities

  • Gyeongsang National University / Computer ScienceGraduated 2023.02

    GPA 3.64 / 4.5

  • Programmers Devcourse2023.12 ~ 2024.05

    Cloud Application Engineering, React and React Native

  • Programmers Devcourse / Assistant Mentor2024.05 ~ 2024.09

    Shared development resources and supported daily scrums and project reviews.

Awards

  • DIVE 2024 Global Data Hackathon2024.10

    Busan Technopark President Award / third in the challenge track

  • Gyeongnam Software Competition2021.10

    ESD HotDeal / Top Excellence Award

Ju-cheol Park02 / 02