Senior IT Infrastructure & Security Lead (Azure, Firewall)

PT ESSA Industries Indonesia Tbk.; Jakarta Pusat; On-site; IDR 450,000,000 - 700,000,000; Full time

Job summary

PT ESSA Industries Indonesia Tbk, headquartered in Jakarta, is hiring an IT Officer to support secure and reliable IT infrastructure across the ESSA Group. The role covers cloud, network, security, virtualization, Microsoft 365, and multi-site connectivity at our Head Office in South Jakarta.

The candidate will manage Azure, firewalls, Cisco networks, and identity services, ensuring security, monitoring, and disaster recovery. Strong English and cross-department collaboration are essential.

Qualifications

• Bachelor’s degree in IT, Computer Science, Computer Engineering or related field.
• 8+ years hands-on IT Infrastructure, Network, System Admin, Cloud or IT Security.
• 5+ years Azure and enterprise firewall administration (Palo Alto preferred).
• Strong Azure VMs, VNet, NSG, Storage, Backup/Recovery, monitoring, and hybrid connectivity.
• Experience in Palo Alto Firewall policies, NAT, routing, VPN, logging, troubleshooting.
• Knowledge of Cisco networking, Ruckus Wireless, LAN/WAN, VLAN, routing, switching, VPN.
• Hands-on Microsoft 365, Entra ID, AD, Windows Server, identity integration.
• Experience managing SentinelOne EDR, endpoint security, patching, vulnerability remediation.

Responsibilities

• Administer and troubleshoot Azure, Hyper-V, Windows Server, and hybrid/multi-cloud infra.
• Manage Palo Alto Firewalls, Cisco networks, Ruckus Wireless, VPN, multi-site connectivity.
• Administer Microsoft 365, Active Directory, and Entra ID authentication integration.
• Manage SentinelOne EDR, endpoint security policies, alerts and remediation.
• Perform security hardening, patching, access control, and vulnerability remediation.
• Execute backup, restore, replication, and disaster recovery procedures.
• Monitor infra performance, security logs, and SIEM/SOC integration.
• Troubleshoot complex incidents across cloud, network, firewall, VPN, virtualization, identity, and M365.
• Maintain docs, diagrams, configurations, SOPs, and inventories.
• Coordinate with vendors/service providers for escalations.

Skills

Fluency in English

Communication skills

Coordination across departments

Vendor management

Education

Bachelor’s Degree in IT/CS/CE

Tools

Azure

Palo Alto Networks

Cisco networking

Hyper-V

Microsoft 365

Entra ID / Active Directory

Windows Server

SentinelOne EDR

Job description

PT ESSA Industries Indonesia Tbk, headquartered in Jakarta, is hiring an IT Officer to support secure and reliable IT infrastructure across the ESSA Group. The role covers cloud, network, security, virtualization, Microsoft 365, and multi-site connectivity at our Head Office in South Jakarta.

The candidate will manage Azure, firewalls, Cisco networks, and identity services, ensuring security, monitoring, and disaster recovery. Strong English and cross-department collaboration are essential.