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The first part of my career in Channel.io was as a front-end engineer. I participated to development of web/electron application of Channel.io.
Related keywords: React.js, Electron, WYSIWYG Editors, TypeScript, Performance optimization of web applications, Design Systems.

Starting from 2022.10, I transferred to back-end engineering team and expanded my area of interest. I lead several implementation and system design to cope with increasing business needs and user/internal traffic.
Related keywords: Java, Go, Dropwizard, PostgreSQL, DynamoDB, Redis, Message queues and streams processing.

Contributions to product feature updates:

• Lead International SMS feature update (2023.07)
• Participated in Product Tutorial feature update (2022.07) as a project sub-leader
• Participated in Marketing feature update (2021.11) as a primary contributor
• Participated in UserChat feature update (2021.06) as a secondary contributor

Contributions to internal/architectural enhancemenets:

• Lead an implementation of highly customizable WYSIWYG editor
• Introduced messaging queue system (w/ AWS SQS, Kinesis) and its usage in application to back-end architecture
• Lead system design and implementation of performant request rate-limiter
• Lead a general optimization of Channel.io front-end application
• Introduced monorepos to front-end projects
• Lead optimization of CI/CD jobs for front-end projects
• Participated to implementation of React.js-based design system for Channel.io

I worked as a core developer and for a PoC of AI-based audiobook subscription service.

• Learned the basics of machine learning and deep neural networks for the first few weeks, mostly on GANs
• Participated in launching the landing homepage for the AI-based handwritten text font generation service
• Participated as front-end engineer of the AI-based video editing service, Vrew (https://vrew.voyagerx.com/en/)

• Developed a photo editor application for Android using Unity, capable of incorporating wave-like effects to an image (https://github.com/inhibitor1217/Sunset)

Browser screen saver developed with WebGPU, Babylon.js, and WGSL

GitHub: https://github.com/inhibitor1217/organism

Coffee shop discovery service in Seoul, Korea

GitHub: https://github.com/inhibitor1217/coffee-hmm
App Store: https://apps.apple.com/us/app/%EC%BB%A4%ED%94%BC%ED%9D%A0/id1582353861
Play Store: https://play.google.com/store/apps/details?id=com.coffeehmm.mobile_app&hl=en_US

An extension for TypeScript enums to grant object-oriented powers

Documentation: https://inhibitor1217.github.io/extended-enum/
GitHub: https://github.com/inhibitor1217/extended-enum

A photo editor mobile application with surface wave simulation

GitHub: https://github.com/inhibitor1217/Sunset
Presentation Slides: https://drive.google.com/file/d/1RUESFnPRfMIwkty25fy-N-juEPhfz55V/view

fireworks is an adaptation of the project in KAIST CS380 (Introduction to computer graphics).

C++/OpenGL-based code was converted to ReactJS/WebGL. Instanced rendering was used to boost the performance in mobile browsers.

2DOptics is the project I worked on when I was in high school. 2D optical devices, such as mirrors, lenses, can be simulated with this program. Used Java Swing framework.

Awarded Bronze medal in 2016 Korean Olympiad in informatics.

SPARCS (https://sparcs.org/) is a software development society in KAIST. We develop and maintain services for mostly KAIST students and others.

• Lead development of "kono" (https://www.notion.so/inhibitor1217/kono-28b3eff4a1104f66b66602aed038ab4c) as project manager (2019)
• Particpated to data engineering of visualizing and analysing user data of OTL (https://otl.sparcs.org/) as a sole contributor (2023)

• 2017 Daejeon
• 2017 Nakhon Pathon
• 2018 Seoul

Gold Medal 🥇

Silver Medal 🥈(경시부문)
Bronze Medal 🥉 (공모부문)

• Member of the KAIST Presidential Fellowship (KAIST 총장장학생)
• Member of the Presidential Science Fellowship (대통령과학장학생)