Myungyong Lee
Backend Developer • Security Researcher
| Software Engineer, Co-Founder, @ Garbage Collector Inc. Seoul, South Korea |
Jun 2022 - Jan 2024 1y 7 months |
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» Developed and built a 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. |
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| Security Researcher, Team Leader @ UpRoot Inc. Seoul, South Korea |
Jan 2018 - Mar 2020 2y 2 months |
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» 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 |
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| Backend Engineer @ Sindex Apr 2025 - Jun 2025 |
Apr 2025 - Jun 2025 3 months |
| » Developed and operated a service that aggregates and refines sales data to provide actionable product recommendations for online store owners. | |
| Backend Engineer @ Crypto Pick Feb 2024 - July 2024 |
Feb 2024 - July 2024 7 months |
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» 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. |
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| 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. | |
| 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. | |
| Computer Science Undergraduate Student at Mokwon University | Feb. 2014 - Mar 2022 |
| 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. | |
