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Ikwhan Chang

장익환 / 張翼煥
#Web #Cloud #ML #Data #Distributed #Growth #Team

Here is what I’ve been doing so far.

Red: Major Career Changes
Purple: Learned Programming Language
Green: Used Framework
Blue: Learned CS and Web Algorithm and Theory

I’m mostly using those stacks

Languages

Java/Stream API
90%
Javascript/ES6
90%
Python 3
70%
Scala
60%
C/C++/C#
30%

Database

MySQL/Maria DB
90%
Oracle DB
60%
MongoDB
60%
BigQuery
40%

Framework

ReactJS
80%
Node.js/Express
80%
Play! Framework
60%
Spring Framework
50%

Infrastructure & Methodologies

Google Cloud Platform
80%
Docker/Kubernetes
65%
SBT, Git, CI, CD
80%

Big Data & Machine Learning & Data Science

Apache Spark, Cloud AI
30%
PyTorch/Scikit Learn
25%
TensorFlow
20%
Jupyter Notebook
70%
Apache Hadoop, Beam
35%

Here is what I’m using so far as a full-stack engineer for web development.

Here is my startup methodologies (product, engineering point of view)

I established it while I’m doing two startups

I have a BS in Computer Science and now I’m pursuing an MS in Software Management

I’m being a TA in Distributed ML Course at CMU

SCS & ECE Careers Events | Carnegie Mellon School of Computer Science

I’m highly interested in Distributed Cloud Architecture for Big data and ML Pipeline

Distributed machine learning

I worked in these awesome companies

I won 1st hackathon winner in 2011!

1st Hackaton Winner: Ikwhan Chang, M. Kim (leftmost), “a social map sharing,” awarded 1st prize with $10K, Naver Inc., 2011. Seoul, Korea

Here are some of my publication

Co-Author: J. T., Ikwhan Chang, Y. P. “Secure Data Management in Internet-of-Things Based on Blockchain,” accepted for 2020 IEEE International Conference on Consumer Electronics (ICCE); Las Vegas, NV (link)
HTML5 and Mobile Web for Full-Stack Programmer, ISBN 9788960881327: a reference book of computer science course collaborated with Samsung at Chung-Ang University (Prof. Sungrae Cho)