At Universitas Airlangga, I've managed university-wide production infrastructure since 2016, maintaining 99.8% uptime across 407+ VPS instances and 27 physical servers on Proxmox VE.
I've modernized the Course Registration System from a monolithic backend into a five-node distributed architecture and then Kubernetes, supporting 4,500 concurrent student logins and load tests of 18,000 JMeter users. I tune Nginx, Apache HTTP Server, PHP-FPM, NFS storage, and Kubernetes autoscaling to keep critical services available during peak demand.
I build repeatable infrastructure with Terraform modules, Ansible playbooks, GitLab CI/CD, and automated disaster recovery workflows capable of rebuilding infrastructure within minutes.
I also operate an eight-node RKE2 cluster, build monitoring with Zabbix, Prometheus, and Grafana, and lead incident response, Linux hardening, threat hunting, and recovery work across production environments.
