Kamandanu Wijaya
IT Infrastructure | Network & System Administrator
Helping businesses maintain system stability, infrastructure security, and sustainable IT operations through a structured and preventive approach.
Professional profile
I have experience managing server and network infrastructure in business environments, with a focus on system availability, security, monitoring, and overall continuity of IT services.
Although my formal organizational role is IT support, the scope of my responsibilities includes server administration, network infrastructure management, system security hardening, and control of critical systems with high reliability standards.
Work experience
IT Infrastructure & Network Administrator
Structural Role: IT Support (with infrastructure and network responsibilities)
PT Geoservices — Bekasi, Indonesia
- Managing enterprise IT infrastructure including servers, networks, firewalls, NAS, CCTV, and PABX.
- Implementing proactive monitoring and backup/recovery strategies to sustain high system availability.
- Serving as the primary escalation point for infrastructure and network incidents.
- Developing technical documentation and internal knowledge base systems.
IT Infrastructure & Network Administrator
Structural Role: IT Support (with infrastructure and network responsibilities)
PT Bahtera Niaga Internasional — Jakarta, Indonesia
- Maintaining 99.9% system uptime through automated backups and proactive maintenance.
- Optimizing LAN/WAN, Wi-Fi, and maintaining web servers, NAS, and DNS in enterprise environments.
- Creating structured troubleshooting procedures to minimize downtime.
- Implementing operational support systems including CCTV, PABX, and corporate websites.
Core competencies
| Domain | Expertise |
|---|---|
| IT Infrastructure | Server & Infrastructure Administration, Virtualization |
| Networking | Network Management, LAN/WAN, Network Security |
| Cybersecurity | Firewall Management, System Hardening |
| Reliability | System Monitoring, Backup & Disaster Recovery |
Tech stack
Server & Virtualization
Linux, Windows Server, Proxmox, VMware
Networking & Security
MikroTik, Cisco, Firewall, VPN, VLAN, TCP/IP
DevOps & Automation
Docker, Ansible, Terraform, Git, Bash Scripting
Monitoring & Reliability
Nagios, Zabbix, Monitoring, Backup & Recovery
Web Development
Node.js, Express, React, Django, WordPress
Database & Services
MySQL, MS SQL Server, Nginx, Apache, DNS
Certifications
"An IT support professional program covering technical support fundamentals, computer networking, operating systems, system administration, and IT security."
"A DevOps course covering Git, CI/CD with Jenkins, containerization using Docker, Ansible, and monitoring with Nagios."
"Fundamentals of offensive security, including ethical hacking, penetration testing, and vulnerability assessment."
"Foundational course on protecting digital assets and understanding modern security challenges."
"Intensive bootcamp building applications using Node.js, React, and RESTful APIs."
"Focus on Python, Django, and SQL for building robust web-based applications."
Contact Me
If you need collaboration or support regarding enterprise IT infrastructure.
