Joonhyuk Ryu

Manage IT Security Governance Responsible for IT security governance, including design, implementation, and maintenance of security policies and frameworks. Led compliance initiatives such as NIS2 registration, GDPR certification, HQ security audits, and regulatory inspections across EU operations. Developed security awareness training for security officers, conducted internal audits, and established incident response processes while coordinating real-time incident handling with security teams.

Automotive Endpoint Analysis and Solution Provide system analysis and incident response and post-incident analysis. Developed endpoint solutions for performance and security issues on vehicles Integrated globally via CI/CD Conducted software system analysis and assessment under various OS. Led root-cause analysis and remediation of security/performance issues in production systems, mitigating real-world vulnerability and hardening deployed software.

Development : Security OS and Data protection Developed secure platforms for Android and embedded Linux (biometrics, banking apps, cloud). Implemented ARM TrustZone (Trusted Execution Environment), secured UI, secure boot chains, key storage, root/jailbreak detection, and hardened authentication UIs. Hardware-enforced isolation security solutions for mobile devices and consumer electronics.

Embedded security SW R&D Designed and implemented embedded software for threat monitoring, cryptography, secure connections and authentication, and payment protection. Developed secured over-the-network firmware updates with rollback, validation, and recovery. Participated in automated testing and Agile workflows with CMMI Lv3 Verification and Validation compliance based on international Software Quality Engineering.

Embedded System, Performance Evaluation, IPTV

Computer Network, Software Engineering