Myungyong Lee
Backend Developer • Security Researcher
github 2peopledesuemail [email protected]  · ctftime peopledesu

Job Experience

Software Engineer, Co-Founder, @ Garbage Collector Inc.
Seoul, South Korea
Jun 2022 - Jan 2024
1y 7 months
» Developed and built an ERP system capable of managing all aspects such as client employees, work history, and service reservations.

» Developed an Android & iPhone app that provides real-time service requests and inquiries, along with the nearest service center information.

» Refined millions of data using Python, and provided easy search and visualization through Elasticsearch and Kibana, utilizing Logstash and Filebeat for real-time log collection and insertion into Elasticsearch.

» Developed a back-office system to efficiently manage client companies.
Security Researcher, Team Leader @ UpRoot Inc.
Seoul, South Korea
Jan 2018 - Mar 2020
2y 2 months
» Lotte Shopping Black Box Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Saemaul Geumgo Bank Black Box Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Hanwha Insurance Electronic Financial Infrastructure Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» S-Pay Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» P-Pay Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Company A Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Shinhan Savings Bank Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Shinhan Asset Management Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Shinhan DS Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Shinhan Capital Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Pearl Abyss Penetration Testing Vulnerability Assessment and Secure Coding Consulting

» Air Force Cyber Warfare Training System Development

Experience

Backend Engineer @ Crypto Pick
Feb 2024 - July 2024
Feb 2024 - July 2024
7 months
» Operated a community site with approximately 1500 DAU using AWS.

» Aggregated real-time coin data from exchanges such as Upbit, Binance, and Bithumb to provide real-time pricing and visualization.
Leader, POC HACKING TEAM 'DEMON'
Feb 2017 - Jun 2019
Feb 2017 - Jun 2019
2 years 4 months
» As the leader of the hacking team at POC, the largest conference in Korea, organized and managed conferences and competitions.
Project Leader, Korea Information Technology Research Institute
Jul 2016 - Jan 2017
Jul 2016 - Jan 2017
6 months
» Led the BOB project focused on exploring zero-day vulnerabilities in emulator virtual escape.
Founder & President, Mokwon University Security Club
Feb 2015 - Feb 2017
Feb 2015 - Feb 2017
2 years
» Managed club operations and led study sessions.

Speaker/Awards

Mayor's Prize, Daegu Startup Festa
2023
2023
» Using artificial intelligence to learn the contents of legal statutes and respond instantly to user inquiries.
3rd Place, 2019 Holy Shield Hacking Festival @ Catholic University
2019
2019
» Achieved 3rd place at the 2019 Holy Shield Hacking Festival held at Catholic University.
Finalist, DefCamp CTF
2019
2019
» Reached the finals in the DefCamp Capture The Flag competition.
Instructor, Security Classes @ Kyonggi University & Pukyong National University
2019
2019
» Explained and conducted hands-on practice on basic web and system vulnerabilities.
16th Place, Facebook Competition
2019
2019
» Secured 16th place in the Facebook competition.
2nd Place, White Hat League Competition
2018
2018
» Finished in 2nd place in the White Hat League competition.
Finalist, CTFZONE Competition (Russia)
2018
2018
» Reached the finals in the CTFZONE competition held in Russia.
7th Place, HackIt Competition
2017
2017
» Achieved 7th place in the HackIt competition.
2nd Place, Hacking Camp Competition
2017
2017
» Achieved 2nd place in the Hacking Camp competition.
Speaker, Router Hacking @ Geekpwn (Hong Kong) 2017
2017
2017
» Live hacking demonstration of major company routers.
Speaker, Virtual Machine Escape @ CodeGate 2017
2017
2017
» Presented on vulnerabilities caused by overflows during CPU calculations in emulators.
Speaker, Game Memory Hacking @ BISC 2017
2017
2017
» Demonstrated and explained game hacking through memory manipulation.
Speaker, Secure Coding Guide for Safety @ HackingCamp 2017
2017
2017
» Presented on common vulnerabilities in development and how to defend against them.

Education

Computer Science Undergraduate Student at Mokwon University Feb. 2014 - Mar 2022

Organizer

Organizer, Hacking Camp
August 2018
August 2018
» Organized the Hacking Camp event.
Organizer, Hacking Camp
2018
2018
» Organized the Hacking Camp event.
Organizer, Bellumina Competition
2017
2017
» Organized the Bellumina competition.
Organizer, POX
2017
2017
» Organized the POX event.
Organizer, POC
2017
2017
» Organized the POC event.
Organizer, CodeGate
2017
2017
» Organized the CodeGate event.
Organizer, Hacking Camp
2017
2017
» Organized the Hacking Camp event.