11/10/2026 updated
100 % available
Senior Infrastructure Engineer | Linux HA | Proxmox VE | Automation | Multi-Datacenter
Sleman, Indonesia
Only remote
Bachelor's Degree, Information TechnologyAbout me
Senior Infrastructure Engineer with 10+ years managing multi-datacenter Proxmox VE HA clusters, bare-metal servers, and automation. Strong in Ansible, Bash, Zabbix/Grafana/Prometheus, backup/DR, and system hardening. Fully remote with flexible timezone.
ProxmoxBash ShellLinuxAnsiblePrometheusZabbixCeph (Software)High Availability ClustersGrafanaBare MetalDocker
Virtualization & High Availability
Expertise in Proxmox VE including HA clusters, major version upgrades, Proxmox Backup Server, Ceph/RAID configurations, as well as KVM, VMware migration, Docker, and LXC container management across multi-datacenter environments.
Automation & Infrastructure as Code
Proficiency in Ansible playbooks and Bash scripting for single-SSH mass operations, Python, and Terraform to automate repetitive operational tasks and reduce configuration drift across large server fleets.
Monitoring & Security
Hands-on experience with Zabbix, Grafana, and Prometheus for infrastructure monitoring, combined with UFW, Fail2Ban, Telegram real-time alerting, and system hardening to ensure security and rapid incident detection.
Bare-Metal Infrastructure Management
Experience managing bare-metal servers using iDRAC, iLO, and IPMI interfaces across multi-datacenter setups, including storage solutions such as 40TB backup NAS, RAID, and Ceph.
Linux Administration
Deep knowledge of Linux distributions including Debian, Ubuntu, and RHEL, covering OS hardening, minimal package installations, and maximal UFW configurations for production environments.
Cloud Platforms
Working knowledge of AWS, Azure, and Google Cloud platforms, supported by an AWS Academy Cloud Architecting Digital Badge obtained in April 2023.
Disaster Recovery & Backup Strategy
Design and validation of disaster recovery procedures and dual backup strategies combining incremental backups and full NAS snapshots, reducing potential recovery time by 30% during production incidents.
Remote Operations & Async Collaboration
Fully remote operational experience with flexible timezone overlap, coordinating via email, WhatsApp, Telegram, Zoom, Google Meet, and Trello for async documentation and incident response across distributed teams.
Expertise in Proxmox VE including HA clusters, major version upgrades, Proxmox Backup Server, Ceph/RAID configurations, as well as KVM, VMware migration, Docker, and LXC container management across multi-datacenter environments.
Automation & Infrastructure as Code
Proficiency in Ansible playbooks and Bash scripting for single-SSH mass operations, Python, and Terraform to automate repetitive operational tasks and reduce configuration drift across large server fleets.
Monitoring & Security
Hands-on experience with Zabbix, Grafana, and Prometheus for infrastructure monitoring, combined with UFW, Fail2Ban, Telegram real-time alerting, and system hardening to ensure security and rapid incident detection.
Bare-Metal Infrastructure Management
Experience managing bare-metal servers using iDRAC, iLO, and IPMI interfaces across multi-datacenter setups, including storage solutions such as 40TB backup NAS, RAID, and Ceph.
Linux Administration
Deep knowledge of Linux distributions including Debian, Ubuntu, and RHEL, covering OS hardening, minimal package installations, and maximal UFW configurations for production environments.
Cloud Platforms
Working knowledge of AWS, Azure, and Google Cloud platforms, supported by an AWS Academy Cloud Architecting Digital Badge obtained in April 2023.
Disaster Recovery & Backup Strategy
Design and validation of disaster recovery procedures and dual backup strategies combining incremental backups and full NAS snapshots, reducing potential recovery time by 30% during production incidents.
Remote Operations & Async Collaboration
Fully remote operational experience with flexible timezone overlap, coordinating via email, WhatsApp, Telegram, Zoom, Google Meet, and Trello for async documentation and incident response across distributed teams.
Experience
Professional experience10+ years
Freelancer since2024
Languages
EnglishFluent
Project history
Designed and operated 5 multi-node Proxmox VE HA clusters across 3-4 datacenters with 15 bare-metal servers, delivering 99.9% uptime for ISP services. Executed major Proxmox VE upgrades with 100% success rate and zero data loss. Developed single-SSH Bash scripts and Ansible playbooks reducing operational tasks by 40%. Implemented dual backup strategy and hardened all systems with UFW and Telegram real-time alerting. Operated fully remote coordinating via multiple communication tools.
Re-engineered Proxmox VE HA infrastructure, reducing system downtime by 25% through proactive monitoring and capacity planning while maintaining 99.9% uptime in a fully remote setup. Automated 20+ routine administrative tasks with scripting, cutting manual intervention by 40%. Designed and validated disaster recovery procedures, reducing potential recovery time by 30%.
Supported 24/7 server and network operations, contributing to 99%+ uptime through first-line monitoring, troubleshooting, and bare-metal hardware installations.