Profile photo of TaeWan Kwon

TaeWan Kwon

Mobile Developer

I build accessible app experiences, crafted down to the finest design details.

About

Hi! I'm TaeWan Kwon, and I love making things. I'm a mobile developer specializing in accessible app interfaces crafted down to the finest design details. I take pride in building products that are considerate of users and usable by everyone. I keep a sharp eye on the small details that separate good products from great ones. I'm happiest working where design meets development, where great user experiences meet clean, scalable code.

I currently lead app and web frontend development at Negohome, contributing to a lifestyle services super app and a trading card service. I lead the work on shared components and the development foundations for app and web, and build products together in close collaboration with fellow developers.

In my free time, I read novels or watch YouTube and streaming shows. I also enjoy sharing a drink with friends and going on dates with my wife.

Experience

  1. 2026.05 – Present

    Mobile Development Lead · Negohome

    I brought the customer and partner apps of a daily-services super app into one monorepo and established their shared foundations. For a trading-card service, I led frontend development through app and web architecture and external integrations, while building the admin frontend independently.

    • Flutter
    • Riverpod
    • Firebase
  2. 2025.03 – 2026.04

    Mobile Development Lead · TeacherK

    I redesigned Tosme’s existing app architecture and resolved refund and duplicate-transaction issues in its in-app payments. I developed Opicme from planning through store release and contributed to the admin web and APIs used to operate both learning apps.

    • Flutter
    • IAP
    • FCM
  3. 2021.11 – 2024.09

    Mobile Developer · Awesomeit

    I developed and maintained Android and Flutter apps for education, telecom and enterprise clients. Alongside an incremental Java-to-Kotlin migration for a learning app, I built a parental smartphone-management app from planning through release.

    • Android
    • Kotlin
    • Java
  4. 2021.03 – 2021.09

    Mobile Developer · Mujip

    I developed and launched an Android app, Django backend and AWS infrastructure for requesting vehicle retrieval by photographing a license plate. For a rehearsal-room service, I implemented bookings across locations and rooms, with calendar synchronization.

    • Android
    • OCR
    • Backend

Projects

  1. Promotional image for a lifestyle services super app featuring a person shown from the upper body with both hands visible

    Customer and partner apps for daily services

    A daily-services super app connecting customer requests with partner offers. I moved two separately developed apps into a monorepo and established a structure that shares common features while separating service-specific work.

    • Flutter
    • Riverpod
    • Firebase
  2. Phone image of two learning apps showing a TOEIC Speaking mock test result screen and an OPIc learning home screenPhone image of two learning apps showing a TOEIC Speaking mock test result screen and an OPIc learning home screen

    English-speaking test preparation apps

    I developed the TOEIC Speaking app Tosme and the OPIc app Opicme. My work combined architecture and payment improvements in Tosme with planning, answer-submission flows and store releases for Opicme.

    • Flutter
    • IAP
    • FCM
  3. Illustrated foreign-language conversation card showing two people talking in a café

    Speaking-practice cards with pronunciation feedback

    A language-learning app for listening to native audio, speaking along and reviewing pronunciation feedback. I built the app, API and web flow and corrected a case where answers were assessed against the wrong sentence.

    • Flutter
    • Riverpod
    • GoRouter
    • NestJS
    • TypeORM
    • OpenAIAPI
  4. Image Recognition and Live Camera Recognition

    Face and pose recognition plugin

    A public plugin connecting Android and iOS face and pose recognition through one Flutter interface. I normalized platform-specific camera input and errors and reuse the plugin in two personal apps.

    • Flutter
    • Kotlin
    • Swift
    • MediaPipe
  5. AI Coding Work Log and Verification Flow

    AI coding work records and validation tool

    A personal tool linking AI work across machines to requirements, issues, execution and validation records. I set goals and change boundaries, then checked the implementation, tests and deployments performed by coding agents.

    • Codex
    • ClaudeCode
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