Cheonsu Park Email & Phone Number

Software Developer, TmaxOS1. Development: Windows Program Compatibility Library (Linux-based OS)2. Research and Implementation: COM and RPC Libraries (Linux .so files)3. Technologies Used: C/C++, Inline Assembly, Git, CMake4. Reverse Engineering: Using IDA, GDBOn-premise/Cloud Network Infrastructure Engineer, SAMSUNG SDS1. Design, Implementation, and Operation: On-premise and Cloud Network Infrastructure for Samsung Affiliates2. Network Policy Implementation, Troubleshooting, and Monitoring3. Cloud and Virtualization Network Projects - Implementation of Virtual Network Topology based on VMware NSX - Configuration of Virtual Load Balancers and Integration of Affiliate Servers4. Deployment of On-premise Network Infrastructure, SAMSUNG SSAFY Project - Network Deployment for Samsung Software Academy for Youth (SSAFY) (62 Classrooms) - Implementation of Multi-layer Network Architecture (L1-L3)VM Management Desktop Application Developer, TmaxOS1. Development: Linux-based VM Management Desktop Application (React JS, Electron)2. Deployment and Maintenance: In-house Deployment (Used by Administrative Departments) and VoC Application3. Research: Analysis of oVirt and Qemu-kvm4. In-house Research Seminar: Qemu-kvm Features and ArchitectureResearch on Remote Work Solutions Using Virtual Machines, TmaxOS1. Research and Development: NSRI National Project, Remote VM Integration for Institutional Office/Internet Networks2. Research and Setup: StrongSwan, OpenSSL, QEMU, Open vSwitch3. PoC Development (National Project Demonstration): Python-based Qemu VM Management ModuleCloud Network Infrastructure Engineer and Automation Developer, NHN1. VPN Gateway Cloud Service Development: Automation Implementation (CISCO, JUNIPER, PaloAlto)2. IDC Cloud Underlay Network Construction: BGP-based Policy Design and Integration3. Network Operation Automation: Development of Network Config Deployment Automation Tools4. System Setup: Real-time Alarm System (Based on rsyslog)Development and Deployment of Accounting Automation Solution (ACCIO)1. Solution Development based on Spring Framework2. Cloud Infrastructure Design and Configuration on AWS, AZURE (with Terraform)3. Development of LLM Agent Services based on LangChain, LangGraph, OpenAI4. Development and B2B Delivery of Accounting Automation Solution (ACCIO) - Design and Construction of ACCIO Service Infrastructure within Customer's Private Cloud Environment - Establishment and Application of Internal Firewall and WAF Security Policies for Customers

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