Summary
Overview
Work History
Education
Skills
Websites
Certification
Additional Information
Timeline
Generic

Doyeon Baek

Front-end Developer
Seoul

Summary

About Me
As a full-stack developer with 4 years of experience, I am passionate about continuous growth and self-development. I enjoy learning and applying new technologies to solve problems efficiently while writing clean, maintainable code. I value strong communication and teamwork, and I strive to contribute to a collaborative and growth-oriented engineering culture.

Overview

4
4
years of professional experience
13
13
years of post-secondary education
2
2
Certifications
2
2
Languages

Work History

Device Management System (debut)

K-systems
01.2025 - Current
  • Participated in the development and deployment of a large-scale asset management platform handling over 500,000 devices across elementary, middle, and high schools in Seoul.
  • Managed front-end development, infrastructure setup, and security configuration for sensitive educational data, server logging, etc.
  • The system processes over 1,000 monthly repair requests, with integrated support for tracking and reporting.
  • Related tech.: React, Java(spring boot)

Asset Management System Development

K-systems
01.2024 - Current
  • Designed and developed an in-house system that centralizes asset registration, service history, contract tracking, reporting, and analytics.
  • Improved company-wide asset visibility and operational efficiency.
  • Currently leading a modernization initiative to enhance system scalability and usability.
  • Related tech.: React, TypeScript

Toner Ordering System Development

K-Systems
01.2024 - 01.2024
  • A system that allowing to check toner orders, order details, and customer information.
  • Related tech.: React, TypeScript, NextJS

Developing a Dashboard and App

K-systems
07.2023 - 09.2023
  • Developing an app and dashboard for field personnel of the national online achievement assessment hosted by the Korea Institute for Curriculum and Evaluation
  • Related tech.: React, TypeScript, Flutter

Homepage Renewal

K-Group
07.2023 - 12.2023
  • Renewed the design of the homepages of K Group, including K-One Co., Ltd., K-Systems Co., Ltd., and K-Networks Co., Ltd., and created the homepages.
  • Related tech.: HTML5, CSS3, JavaScript

AI Speaker Development

Marknova
03.2022 - 05.2023
  • Video Call App (iOS)
    Ported an Android video call application (originally developed in Java) to iOS using Swift, ensuring feature parity and UI/UX consistency across platforms for elderly users.
  • AI Speaker Healthcare App (Android)
    Developed a healthcare-focused Android application for elderly users integrating BLE-enabled devices (e.g., smart dumbbells, weight scales).
    Enabled real-time measurement of physical metrics (e.g., muscle strength, weight) to help prevent chronic diseases such as hyperlipidemia.
    Collaborated with hardware teams to integrate custom BLE protocols.
  • Web Dashboard for Data Monitoring (React, TypeScript)
    Maintained and enhanced the companion web application that visualizes data collected from the AI speaker.
    Implemented real-time data synchronization using WebSocket to support remote control of AI speakers, allowing caregivers or administrators to operate devices on behalf of users unfamiliar with mobile technology.
  • Server-Side Development (Python)
    Designed and developed RESTful APIs used by both the mobile app and the web dashboard.
    Handled server deployment, API integration, and maintenance to ensure data consistency and secure access control across platforms.

Get Together and Exercise Together, Boardwalk

Nodennect
09.2021 - 12.2021
  • Developing an MVP
  • Related tech.: Flutter, React

Kindergarten Electronic Work System, Dingo

Nodennect
07.2021 - 09.2021
  • Developing an MVP
  • Related tech.: Flutter, React

팀장

주식회사 하이페이스디자인
04.2023 - 06.2023

팀장

에이치준디자인
11.2022 - 03.2023

CEO

노드넥트
07.2021 - 01.2022
  • 함께 모여서 운동하기, Boardwalk
  • MVP 개발
  • 관련기술: Flutter, React

07.2021 - 09.2021

현장요원 관리용 대시보드 및 앱 개발

교육과정평가원
01.2025 - 03.2025
  • 교육과정평가원 주관하 전국 온라인 성취도평가 현장요원용 앱 및 대시보드 개발
  • 관련기술: React, TypeScript, Flutter

주임연구원

주식회사 케이시스템
06.2023 - Current
  • 서울시교육청 디벗 A/S관리 및 학생 관리 시스템 개발
  • 관련기술: React, TypeScript

Education

Bachelor of Science - Landscape Architecture, Computer Engineering

Pusan Nat'l University
Busan
05.2013 - 02.2023

High School Diploma -

Pusan Foreign Language High School
Busan, South Korea
05.2010 - 02.2013

Skills

  • Swift

  • React

  • Java

  • HTML5

  • TypeScript

  • CSS3

  • Flutter

  • JavaScript

  • MySQL

  • GitHub

  • AWS

  • Docker

Certification

Engineer Information Processing

Additional Information

https://github.com/dosthcpp - GitHub
https://blog.naver.com/black_s - Blog
http://codennect.co.kr - Personal business homepage
https://dosthcpp.github.io/portfolio - Personal portfolio

Timeline

Device Management System (debut)

K-systems
01.2025 - Current

현장요원 관리용 대시보드 및 앱 개발

교육과정평가원
01.2025 - 03.2025

Engineer Information Processing

09-2024

Engineer Information Security

09-2024

Asset Management System Development

K-systems
01.2024 - Current

Toner Ordering System Development

K-Systems
01.2024 - 01.2024

Developing a Dashboard and App

K-systems
07.2023 - 09.2023

Homepage Renewal

K-Group
07.2023 - 12.2023

주임연구원

주식회사 케이시스템
06.2023 - Current

팀장

주식회사 하이페이스디자인
04.2023 - 06.2023

팀장

에이치준디자인
11.2022 - 03.2023

AI Speaker Development

Marknova
03.2022 - 05.2023

Get Together and Exercise Together, Boardwalk

Nodennect
09.2021 - 12.2021

Kindergarten Electronic Work System, Dingo

Nodennect
07.2021 - 09.2021

CEO

노드넥트
07.2021 - 01.2022

07.2021 - 09.2021

Bachelor of Science - Landscape Architecture, Computer Engineering

Pusan Nat'l University
05.2013 - 02.2023

High School Diploma -

Pusan Foreign Language High School
05.2010 - 02.2013

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Doyeon BaekFront-end Developer