IT Infrastructure Engineer - Networking, Security & Endpoints

RECRUIT EXPRESS PTE LTD

Singapore

On-site

SGD 5,000 - 9,000

Full time

14 days+

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Job summary

RECRUIT EXPRESS PTE LTD is seeking an experienced IT Infrastructure Engineer to support and maintain campus IT infrastructure across LAN/WAN, Wi‑Fi, firewall, VPN, VLAN, DHCP, DNS, routing and switching. You will monitor performance and security, and troubleshoot complex issues across servers, virtualization, AD/Entra ID, and Microsoft 365 environments.

The role includes acting as escalation point for incidents, ensuring readiness for classrooms, labs and examinations, coordinating with vendors,

Qualifications

Must hold a Diploma in Computer Science, IT or related discipline.
Requires 5-8 years of hands-on IT infrastructure / network / end-user support experience.
Strong knowledge of networking, TCP/IP, VLAN, routing, switching, DHCP, DNS, VPN, Wi-Fi and firewalls.
Experience with enterprise platforms such as Fortinet, Aruba, HPE, Cisco, Huawei or equivalent.
Good knowledge of Windows Server, Active Directory, Entra ID, Group Policy and Microsoft 365.
Experience with endpoint management, monitoring, backup, patching and security tools.
Familiarity with ITIL, incident/change management or service desk operations is advantageous.
Knowledge of ISO 27001, EduTrust, PDPA or audit/compliance environments is a plus.
Strong troubleshooting, documentation and stakeholder management skills.
Comfortable supporting after-hours/weekend maintenance, examinations or critical incidents when required.

Responsibilities

Support and maintain campus IT infrastructure, including LAN/WAN, Wi-Fi, firewall, VPN, VLAN, DHCP, DNS, routing & switching.
Monitor network performance, availability and security alerts, and troubleshoot infrastructure issues.
Provide hands-on support for servers, virtualisation, backup systems, Microsoft 365 and endpoint environments.
Administer and troubleshoot Active Directory, Entra ID, Group Policy, user access and endpoint configurations.
Act as an escalation point for complex IT incidents and service requests.
Support classroom, computer lab and examination IT readiness.
Coordinate with vendors and service providers on network, infrastructure and maintenance matters.
Support IT security, patching, endpoint protection, vulnerability remediation and audit requirements.
Maintain technical documentation including network diagrams, SOPs, incident reports and change records.
Assist with infrastructure projects, system upgrades, network refreshes and continuous improvement initiatives.
Provide technical guidance to junior team members.