#AWS Lambda #DynamoDB #Telegram Bot #Gemini AI #GitHub Actions #Serverless
🎯 Problem:Inefficient manual markdown posting on PC and recurring server costs for running always-on instances.
💡 Solution:Event-driven serverless pipeline using Telegram Webhook -> Lambda Function URL -> DynamoDB -> Gemini AI translation -> GitHub REST API commit -> GitHub Actions CDN deployment.
📊 Key Results: $0/month running cost (Always Free Tier), <1 min mobile remote posting, 100% Zero-Ops maintenance
#Cloud Migration #Hybrid Cloud #AWS #NHN Cloud #RDS Blue-Green #Network Security
🎯 Problem:Aging legacy systems for public institutions, strict minimal downtime requirements, and tight budgetary constraints.
💡 Solution:Hybrid architecture via NHN Colocation Gateway, RDS Blue/Green replication and switchover, L4/L7 load balancing, and cloud TCO estimation modeling.
📊 Key Results: Switchover downtime minimized to seconds, 30% operational cost reduction, 99.99% system availability
#Incident Response #Security #CVE-2025-55182 #strace #Forensic #Linux Kernel
🎯 Problem:Remote Code Execution (RCE) exploitation on production web servers and unauthorized background webshell execution.
💡 Solution:Tracing system calls via `strace` and network socket analysis, isolating malicious processes, firewall lockdown, and root-cause mitigation.
📊 Key Results: Complete containment and restoration within 1 hour of detection, 0 secondary breach incidents
#C++ #DirectX #Game Engine #Win32 API #Mentoring
🎯 Problem:Educating junior developers on C++ game engine architecture and DirectX rendering pipelines.
💡 Solution:Designed modular game framework in C++ and DirectX, provided structured mentoring courses and video demonstrations.
📊 Key Results: Selected as University Graduation Capstone Project, public YouTube tutoring lectures, open-source GitHub release