IT Infrastructure & Network Administrator
An IT Professional with over 14 years of experience in managing enterprise IT environments, focusing on system stability, security, and business continuity.
Professional Profile
I am responsible for managing server and network infrastructure, ensuring system availability, security, and monitoring, while overseeing end-to-end IT operations through a structured and preventive approach.
Although my official title is IT Support, my core responsibilities encompass server administration, network infrastructure management, security hardening, and the oversight of critical systems with high reliability standards.
Professional Experience
IT Infrastructure & Network Administrator
(Official Title: IT Support)
PT Geoservices
July 2022 – Present · Bekasi, Indonesia
- Managed and maintained enterprise IT infrastructure (Servers, Networking, Firewalls, NAS, CCTV, and PABX).
- Ensured high system availability through proactive monitoring, scheduled maintenance, and robust backup/recovery strategies.
- Served as the primary escalation point for infrastructure and network-related incidents.
- Resolved complex technical issues with a focus on preventing recurring incidents.
- Executed infrastructure changes, integrations, and upgrades with minimal risk to business operations.
- Managed end-to-end office IT operations, including system transitions and migrations.
- Developed technical documentation and internal knowledge bases.
IT Infrastructure & Network Administrator
(Official Title: IT Support)
PT Bahtera Niaga Internasional
June 2011 – July 2022 · Jakarta, Indonesia
- Maintained 99.9% system uptime through proactive maintenance and data backup automation.
- Managed enterprise servers and secure network infrastructure to support stable business operations.
- Enhanced network reliability through continuous monitoring and optimization of LAN/WAN and Wi-Fi performance.
- Acted as the lead for technical support and escalation regarding infrastructure, networking, and systems.
- Developed structured troubleshooting procedures to accelerate resolution times and reduce downtime.
- Implemented operational support systems including CCTV, PABX, and the company website.
Core Skills
| Field | Competencies |
|---|---|
| IT Infrastructure | Server & Infrastructure Administration, Virtualization |
| Networking | Network Management, LAN/WAN, Network Security |
| IT Operations | IT Operations, IT Service Management, Technical Support |
| Security | Cybersecurity, Firewall Management |
| Reliability | System Monitoring, Backup & Recovery |
| Cloud & DevOps | Cloud Fundamentals, DevOps Practices |
| Web Development | Full Stack Web Development |
| Database | Database Administration |
Tech Stack
| Category | Technologies |
|---|---|
| Server & OS | Linux Server, Windows Server |
| Virtualization | Proxmox, VMware, OS Boxes |
| Web & Network Services | Nginx, Apache, DNS Server, Mail Server |
| Networking | MikroTik, Firewall |
| Monitoring | Nagios, Zabbix |
| Cloud Platform | AWS, GCP |
| DevOps Tools | Docker, Git, Terraform, Jenkins, Ansible |
| Web Stack | WordPress, HTML, CSS, Node.js, Express.js, Django, React |
| Database | MySQL, Microsoft SQL Server |
| Hardware | NAS, CCTV, PABX |
Certifications & Training
Cybersecurity & IT Support
- Ethical Hacker — Cisco (2025)
- Introduction to Cybersecurity — Cisco (2025)
- IT Support — Google (Coursera, 2023)
DevOps & Cloud
- DevOps — ID-Networkers (2020)
(Docker, Git, Jenkins, Ansible, Nagios) - Cloud Practitioner Essentials (AWS) — Dicoding (2021)
Web Development (Supporting Skills)
- Full Stack Web Developer — Binar Academy (2021)
- Full Stack Web Developer — Code Artisan Academy (2020)
- React Developer — Ministry of Communication and Informatics (2022)
- Advanced React — Meta (Coursera, 2023)
Contact
If you are looking for collaboration or support regarding IT infrastructure, networking, or enterprise system operations, feel free to reach out:
- Email: kamandanu.wijaya@gmail.com
- WhatsApp: +62 812 2233 129