A developer who builds AI agents and the systems that run them reliably.
$ whoami Kim Jong Gun — AI AGENTS · SYSTEMS · SECURITY $ ls ~/now junior_3rd-year/ likelion_fullstack-lead/ hedgehog_security-lab/ $ cat shipped.txt ClassFileAuto · likelion-sch.com · Hedgehog WebCTF — all shipped & in production
An integrated workspace that pulls scattered lab collaboration out of KakaoTalk and Google Docs. Its first module turns seminar PDFs into a feedback canvas — location-based pin comments plus a Claude copilot for Korean academic editing, synced in real time and self-hosted.
Recruiting, screening, education, and operations for a campus dev club — a real service running on a custom domain.
A streaming gateway that plays under Widevine L3 without ever sending the content key (CEK) to the client. Per-session edge re-encryption removes the risk where one license theft cascades into permanent reuse across all content and users. Reference implementation of my DRM papers (CISC-S'26, national crypto competition) — code opening 2026-11.
A hands-on web-CTF platform with six challenges I authored myself (SQLi, HTTP headers, obfuscation) plus operator write-ups.
A course-material downloader for the campus LMS. Encrypts student credentials with RSA and never stores them — convenience without compromising security.
A digital emotional-wellness platform for young adults (19–34): mood logging, routines, and self-understanding as a bridge between at-risk youth and clinical care. Positioned as a non-medical-device information and habit tool.
If you need a developer to turn AI agents into shipped products, reach out.