At Confidential Client, I designed and maintained a high-availability load-balancing and caching cluster on a 3-node Proxmox HA setup. I also developed a Go service to synchronize and reload HAProxy configurations in real time, supporting zero-downtime updates.
At Confidential Client, I integrated Loki log analytics with HAProxy and OpenResty traffic to help detect and blacklist malicious IP addresses. I also reduced infrastructure operating costs by approximately 50% by replacing managed services with self-managed OVH bare-metal infrastructure.
As a part-time network admin for Contracted Job(Network Admin), I administered datacenter routing and switching infrastructure using Juniper and VyOS, and deployed network observability with Akvorado, NetFlow, Prometheus, Loki, and Grafana. I also implemented BGP Flowspec and community-based DDoS mitigation workflows.
In my freelance and personal projects, I developed Go applications for subtitle workflows and abusive-client detection, and built a web-based HAProxy cluster management prototype. I also operate a personal ASN lab for experimenting with BGP routing, IPv6, and network automation.
