Private 5G Network Design and Deployment
Technical Support Engineer / Associate @ Ubiquoss · L2/L3 Switching, 5G RAN/Core, SNMP/Syslog monitoring
The Problem
Enterprise clients (NAVER 1784 headquarters, POSCO DX facilities) needed Private 5G networks for internal operations: low-latency connectivity for IoT sensors, autonomous logistics, and high-bandwidth applications within their premises.
The Solution
- Network topology design: redundant paths, failover mechanisms, and traffic segmentation for 5G core and RAN components
- Simulation environments: lab environments replicating production topology for pre-deployment validation
- Monitoring infrastructure: SNMP/Syslog-based monitoring with proactive fault detection alerting
- Multi-region support: real-time technical support across Korea, Japan, and the United States
Additional work included CIDR-based subnetting for department/floor segmentation, L4 load balancing, ultra-low-latency tuning, L3 switch OS validation, and SOPs for recurring issues.
Key Deployments
- NAVER 1784: Private 5G network for NAVER's headquarters building, supporting internal logistics and IoT infrastructure
- POSCO DX: Industrial Private 5G for smart factory operations
What I Learned
Working on physical network infrastructure taught me to think in redundancy. Every single point of failure eventually fails. That mindset carried directly into how I design software now: a fallback for every dependency, monitoring on the paths that matter, and a rehearsed way to recover.