CCNA-certified IT Professional with a Software Engineering background, building skills in routing, switching, and network automation.

Networking: IPv4/IPv6, OSPF, VLANs, 802.1Q, STP, Cisco IOS
Automation & Development: Python (Netmiko), Java, SQL, Git
Systems & Cloud: AWS (Lambda, CloudFormation, API Gateway, DynamoDB), Linux/Windows
Tools: Wireshark, Packet Tracer

🔗 https://github.com/dc9865/enterprise-network-project

• Built a multi-site enterprise network using hierarchical design
• Implemented VLANs, inter-VLAN routing, OSPF, static routing, and NAT
• Configured HSRP, EtherChannel, and Rapid PVST+ for redundancy
• Deployed DHCP, DNS, NTP, SNMP, Syslog, and SSH for centralized services
• Applied ACLs, DHCP Snooping, DAI, and Port Security
• Validated traffic flow using CLI and Wireshark

🔗 https://github.com/dc9865/ccna-labs

• Designed multi-router and multi-switch topologies using Cisco IOS
• Configured inter-VLAN routing and OSPF
• Implemented STP and port security for segmentation and stability

🔗 https://github.com/dc9865/team-3

• Built serverless architecture using AWS CloudFormation
• Developed Python (Boto3) Lambda functions for automation
• Integrated API Gateway and DynamoDB

IT Support Specialist (LG Energy Solution, Hyundai Mobis)

• Supported enterprise users with hardware, software, and network issues
• Troubleshot Layer 1–3 connectivity (IP, DHCP, DNS, VPN)
• Gained exposure to switching, wireless, and data center operations

• CCNA (Apr 2026)
• Oracle Certified Associate, Java

• Network automation with Python (Netmiko)
• Packet analysis with Wireshark