Senior Enterprise IT & Security Engineer

Hong Kong International School; Hong Kong; On-site; HKD 600,000 - 900,000; Full time

Job summary

Hong Kong International School seeks a hands-on Systems & Security Engineer to implement, administer, and secure the School's IT infrastructure across on‑premises and cloud. You will manage Windows/Linux servers, AD/Azure/M365, VMware, SAN/backup, Juniper networks, Palo Alto firewalls, and endpoint management with Intune and Jamf Pro.

You will monitor security with SIEM/EDR/XDR, perform vulnerability remediation, and ensure disaster recovery readiness.

Qualifications

• Bachelor-level degree in a relevant field; professional certs preferred.
• Minimum 5 years hands-on experience in enterprise systems, networks, endpoints, or cybersecurity operations.
• Proven experience with Windows Server, Linux, AD, Azure, M365, Entra ID, VMware, SAN/storage, and Veeam backups.
• Hands-on design, implementation, and management of enterprise routing & switching with Juniper gear.
• Experience with Palo Alto, Cisco ISE, Jamf Pro, Intune MDM, SIEM/EDR/XDR, IDS/IPS, Check Point, vulnerability management, and security monitoring.
• Strong knowledge of TCP/IP, routing, switching, VLANs, DNS, DHCP, VPN, wireless, firewalls, and network security.

Responsibilities

• Implement, administer, and secure Windows Server, Linux, AD, Azure, M365, Entra ID, DNS, DHCP services.
• Manage VMware virtualization, SAN/storage, and Veeam Backup.
• Monitor availability and performance; perform upgrades, patching, hardening, and recovery.
• Support disaster recovery and infrastructure resilience.
• Design and manage LAN/WAN, routing, switching, VLANs, VPN, wireless, and Internet infrastructure.
• Administer Juniper equipment and enterprise routing/switching.
• Manage Palo Alto firewalls and Cisco ISE; enforce security policies.
• Oversee endpoint management with Intune MDM and Jamf Pro; enforce MFA and CA policies.
• Monitor SIEM/EDR/XDR, vulnerability management, logging, and security incidents.
• Document configurations, architectures, and procedures; coordinate with vendors; support professional development.

Skills

Windows Server

Linux

Active Directory

Azure

Microsoft 365

Entra ID

VMware

SAN/storage

Veeam

Juniper devices

Palo Alto firewalls

Cisco ISE

Jamf Pro

Microsoft Intune MDM

SIEM/EDR/XDR

IDS/IPS

Check Point

Vulnerability management

TCP/IP networking

Routing/Switching/VLAN

VPN/Wireless security

Education

University degree in Computer Science / Information Technology / Information Security / Computer Engineering

Relevant professional certifications preferred

Tools

VMware

Veeam Backup

Jamf Pro

Microsoft Intune

Microsoft 365

Entra ID

MS Defender EDR/XDR

Palo Alto firewalls

Cisco ISE

Juniper networking equipment

Job description

Hong Kong International School seeks a hands-on Systems & Security Engineer to implement, administer, and secure the School's IT infrastructure across on‑premises and cloud. You will manage Windows/Linux servers, AD/Azure/M365, VMware, SAN/backup, Juniper networks, Palo Alto firewalls, and endpoint management with Intune and Jamf Pro.

You will monitor security with SIEM/EDR/XDR, perform vulnerability remediation, and ensure disaster recovery readiness.