IT Officer - Infrastructure

PT ESSA Industries Indonesia Tbk.; Bangsal; On-site; IDR 350,000,000 - 700,000,000; Full time

Job summary

PT ESSA Industries Indonesia Tbk is seeking an experienced IT Officer to support secure, reliable, and high-performing infrastructure across the ESSA Group. You will focus on hands-on operations spanning cloud, network, security, virtualization, Microsoft 365, and multi-site connectivity.

Based at Head Office in South Jakarta, you will collaborate with multiple teams and external partners to maintain uptime, implement best practices, and safeguard critical assets in a dynamic industrial

Qualifications

• Bachelor's degree in IT, Computer Science, Computer Engineering, or related field.
• Minimum 8 years of hands‑on experience in IT Infrastructure, Network, System Administration, Cloud, or IT Security.
• Minimum 5 years of hands‑on experience with Microsoft Azure and enterprise firewall administration, preferably Palo Alto Networks.
• Strong hands‑on skills in Azure VMs, VNet, NSG, Storage, Backup/Recovery, Azure Monitor, and hybrid connectivity.
• Experience in Palo Alto Firewall, including security policies, NAT, routing, IPsec/SSL VPN, logging, and troubleshooting.
• Strong knowledge of Cisco networking, Ruckus Wireless, Hyper‑V, LAN/WAN, VLAN, routing, switching, and VPN.
• Hands‑on experience with Microsoft 365, Entra ID, Active Directory, Windows Server, and identity integration.
• Experience managing SentinelOne EDR, endpoint security, infrastructure hardening, patching, and vulnerability remediation.
• Strong capability in backup, disaster recovery, RTO/RPO, infrastructure monitoring, SIEM/SOC integration, and end‑to‑end troubleshooting.
• Preferred certifications: AZ‑104, Palo Alto, CCNA, Microsoft 365, or Microsoft Security.
• Fluency in English, both written and spoken.
• Strong communication and coordination skills, with the ability to work effectively across multiple departments and with external agencies or vendors.

Responsibilities

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

Skills

English proficiency

Communication

Coordination across departments

Troubleshooting

Security incident response

Education

Bachelor's degree in IT/CS/CE

Tools

Microsoft Azure

Palo Alto Firewall

Cisco networking

Ruckus Wireless

Hyper-V

Microsoft 365

Entra ID

Active Directory

Windows Server

SentinelOne

SIEM/SOC

Job description

We’re Hiring IT Officer!

Join our IT team and support secure, reliable, and high-performing IT infrastructure across the ESSA Group. This role will focus on hands‑on infrastructure operations covering cloud, network, security, virtualization, Microsoft 365, and multi‑site connectivity.

Work Location: Head Office – South Jakarta

Job Requirements

• Bachelor’s Degree in IT, Computer Science, Computer Engineering, or related field
• Minimum 8 years of hands‑on experience in IT Infrastructure, Network, System Administration, Cloud, or IT Security
• Minimum 5 years of hands‑on experience with Microsoft Azure and enterprise firewall administration, preferably Palo Alto Networks
• Strong hands‑on skills in Azure VMs, VNet, NSG, Storage, Backup/Recovery, Azure Monitor, and hybrid connectivity
• Experience in Palo Alto Firewall, including security policies, NAT, routing, IPsec/SSL VPN, logging, and troubleshooting
• Strong knowledge of Cisco networking, Ruckus Wireless, Hyper‑V, LAN/WAN, VLAN, routing, switching, and VPN
• Hands‑on experience with Microsoft 365, Entra ID, Active Directory, Windows Server, and identity integration
• Experience managing SentinelOne EDR, endpoint security, infrastructure hardening, patching, and vulnerability remediation
• Strong capability in backup, disaster recovery, RTO/RPO, infrastructure monitoring, SIEM/SOC integration, and end‑to‑end troubleshooting
• Preferred certifications: AZ‑104, Palo Alto, CCNA, Microsoft 365, or Microsoft Security
• Fluency in English, both written and spoken.
• Strong communication and coordination skills, with the ability to work effectively across multiple departments and with external agencies or vendors.

Job Responsibilities

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

About Us

PT ESSA Industries Indonesia Tbk, formerly known as PT Surya Esa Perkasa Tbk., underwent a transformative rebrand in 2022 to better align with its vision of leading Indonesia's drive towards world‑class industrialization. Established in 2006, the company initially ventured into LPG and Condensate production with its refinery facility in Palembang. Over the years, it expanded its operations, notably entering the Ammonia production sector through its subsidiary, PT Panca Amara Utama, at the Banggai Ammonia Plant in Sulawesi Tengah. ESSA has evolved into a leading company committed to contributing to Indonesia's world‑class industrialization processes. The company places a strong emphasis on environmental, social, and sustainability considerations in all its endeavors. With records of accomplishment of innovation and excellence, ESSA continues to play a pivotal role in shaping Indonesia's industrial landscape.