Woohyun Michael Jo

I'm a

About

Hello World! I am a senior undergradute at UC Berkeley studying computer science — you can view my resume here.

Software Engineer, Data Mining

I spent my last two summers as an SWE intern @TikTok's Risk Data Mining team, creating and automating pipelines to perceive and prevent fradulent adversaries and hackers. I specialize in systemic risk alleviation against malicious users.

  • Location: San Francisco Bay Area
  • Phone(KR): +82 (010) 9562-****
  • Phone(US): +1 (510) 345-****
  • Major: Computer Science
  • Level: Senior
  • Email: woohyun7878@berkeley.edu

I have also worked as a SWE intern @Proofpoint and @Fasoo, both experiences intersecting with areas of cybersecurity.

Skills

I am proficient with the following programming languages and tools.

Java 95%
HTML/CSS/JS 75%
C/C++ 95%
Python 95%
SQL 95%
GO 50%

Projects

  • All
  • Course
  • Personal
  • Corporate

Mobile: Tap images for view options

Metaport

Sketchup (3D Modeling)

BYOW

JAVA

AccuLimit

PYTHON

Scheme Interpreter

Python

PyFlaGoat

Python • Flask • HTML/JS

Moneythings

After Effects • Illustrator • Audacity

Genie Music Scrapper

Browser Extension • JavaScript

Homebuild

Volunteer Project

Gitlet

Java

Pacman AI

Python

CryptBox

Go

DBMS-J

Java

Resume

A brief list of things that I've been up to in the past few years. You can view my official resume here.

Education & Experience

Bachelor of Arts in Computer Science

2020 - 2023 (Projected)

University of California, Berkeley

A member of @UPE and a guitarist @Ra-On.
GPA: 3.9

SWE Intern - Account Integrity

Summer 2023

TikTok Inc.

Created a standalone web-registration fraud defense pipeline; streamlined fake account firefighting by automating offline cluster perception through a newly formalized DDL API integration procedure.

Implemented a CatBoost-RF model into TikTok’s internal visualization pipeline (Aeolus), introducing a new method to visualize cluster-specific risk parameters (GINI importance) under static DB constraints.

SWE Intern - Software Demolition

Jan - May 2023

Proofpoint Inc.

Automated pipeline deployment approvals for Cloudmark Gateway (Proofpoint’s e-mail threat detection software) by developing a Python script that integrates JFrog Artifactory and Jenkins, removing manual workload in development operations.

SWE Intern - Risk Data Mining

Summer 2022

TikTok Inc.

Engineered empirical evaluation metrics to improve antispam precision, eliminate resource waste, and identity faulty rules in TikTok’s rule-based business risk detection system.
Created a visual analysis tool to develop an SOP for batch rule retirement; reduced manual workload—Dorado, Aeolus, Shark—on initiating risk controls on new business.

SWE Intern - Full Stack

Summer 2021

Fasoo Inc.

Implemented an intentionally vulnerable web application (WebGoat) through Flask (Python Web Framework) for Sparrow SAST and DAST development.

Communications Intern

Summer 2018

Shinjin Furnace Machinery Co. Ltd.

Technical translation for communication with North America, Europe, and East Asia.

Awards & Certifications

Academic Awards

2018 ~
  • International Honor Society for the Computing Sciences (UPE) | Inductee | December 2021
  • Dean's List — College of Letters & Science, UC Berkeley
  • Global Youth Entrepreneurship Challenge (GYEC) | Winner | May 2018
  • Korea Business Competition (KBC) | Grand Champion (2), Second Place (1) | May 2018 — April 2019
    • Developed a financial plan to bring back Toys R’ Us from bankruptcy.
    • Proposed a business solution to the solid waste and affordable housing crisis in South Korea through reprocessed solid-waste bricks.
    • Proposed a competitive contractual employment model for Shinsegae Food (Co-Hosted by Shinsegae).
  • Cornell-Yonsei Invitational | Grand Champion, Asian Parliamentary Debate | July 2018
  • NSDA Korea National Championship | 3rd Place, Lincoln-Douglas Debate | January 2018
  • Recognition by the Korean National Assembly | Honoree (2) | July 2018, October 2018