Dae Hwan Kim Email & Phone Number

Seoul, South Korea

Operating and managing network security appliance/application/device (DDoS, WAF, VPN, SIEM, IDS)Introducing and implementing entire process of security infra operating automation (Ansible(AWX), Linux, Docker, Git, Server)Proposing and implementing open-source based large scale full-packet storage and achiving cost savings of $2 million in 5 year TCO (Arkime, Linux, Elasticsearch, Kubernetes)Analyzing and improving IDS detection ratio as combined with full-packet storage solutionProceeding entire process of PoC which integrating open-source based IDS with SIEM (Suricata, splunk)

Researching and publishing trend report on cloud-native network security structure (SASE, CASB)Developing operation work automation process using RPAManaged entire process of WAF appliance BMT and evaluated operating aspects

Developed and operated SOC portal using SAMSUNG SOCFront-end to database, REST API server development(HTML, JavaScript, Java, Python, SQL Server, Docker)Designed AWS WAF, preventing web hacking resource management process and webpagesHosted external customer SOC portal on AWS EC2

Operated inline VPN H/W and IPSec tunnels over 500 equipment in 80 countriesEvaluated customers WAN to enlighten vulnerable linesAs a result, more than 10 customers introduced new VPN devicesProposed and Operated proxy, VPN orchestration solution on LinuxProposed multi peer IPSec tunneling design to expropriate MPLS WAN and succeeded in retaining largest customer (2.5 million dollars)Proposed and applied encryption algorithm on volatile memory and centralized management architecture VPN

Monitored internal/Internet traffic for more than 20 companies SAMSUNG as SOC agent(24 × 7 shift)Analyzed network traffic, exploit kits, malware files (Wireshark, RSA Netwitness, Q-radar SIEM, Fireeye MAS)Research APT, malware, exploits, network threat trend to publish trend reportDeveloped obfuscated exploit kit traffic replay framework (Java, Burp Suite)Trained junior security agents about cyber security monitoring, alert process

Managed enterprise interconnection systems at SAMSUNG Life InsuranceDeveloped and operated the External Integration application(FEP) to manage online/batch interconnections between financial firms (C, Unix, Oracle SQL)Operated bancassurance solution, maintaining SOAP formed message and webserverOperated EAI solution, maintaining JSON formed message and build adaptersDeveloped and operated large scale image transmission system (Java, Windows Server)