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Sungmin Choi (Tommy)

Available to hire

Hi, I’m Sungmin Choi (Tommy). I’m a hands-on Android/Frontend engineer who loves building production apps from architecture to deployment, with a focus on performance and maintainability.

About

Hi, I’m Sungmin Choi (Tommy). I’m a hands-on Android/Frontend engineer who loves building production apps from architecture to deployment, with a focus on performance and maintainability. I value feedback from real users and iteratively improve features to enhance the user experience.

My recent work spans Android apps with Jetpack Compose, MVVM, and Kotlin Coroutines, to full-stack web frontends and cloud deployments. I’ve implemented automated testing, streamlined Google Play release pipelines, and contributed optimizations to open-source projects.

  • 4 years' experience
  • Joined April 2026

Industry experience

  • Software & Internet
  • Media & Entertainment
  • Professional Services
  • Education

Work experience· 5 roles

Sole Developer · MLV app AndroidOct 2024 – Present · 2 yrs 2 mos

Designed and implemented an end-to-end Android production app using Jetpack Compose and MVVM, managing shared state across screens and long-running operations with Kotlin coroutines; implemented OpenGL-based RAW video rendering optimization using NDK/JNI; added unit tests with JUnit and automated the Google Play release pipeline; contributed thumbnail optimization to an upstream open-source project.

Community Manager & CX · MacOne Co., Ltd.May 2022 – Jul 2023 · 1 yr 3 mos

Managed Kakao OpenChat and Discord communities for an early NFT project; monitored server stability, escalated issues to engineering, and engaged in investor-facing channels to sustain pre-launch activity.

Frontend Developer · Gonggi AppJan 2021 – Jun 2021 · 6 mos

Developed a map-based location app in React Native, integrating Firebase authentication and real-time data sync for restaurant discovery.

Sole Developer & Operator · StackStocks.netJul 2020 – Jan 2021 · 7 mos
Program Planner · Dobong District OfficeJan 2020 – Jul 2020 · 7 mos

Education

Systems Programming Curriculum (C/C++) · 42 Seoul2021 – 2022
Bachelor of Engineering, Mechanical Engineering · Chungnam National University2010 – 2017

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