Senior IT Infrastructure Engineer (Network & Systems)
ANTINA PTE. LTD.
Singapore
7+ years
Posted 3w ago
Salary Range
SGD 72,000 - SGD 108,000 /year
SGD 6,000 - SGD 9,000/month
Skills Required
SwitchesMicrosoft 365implementing monitoring toolsActive DirectoryVMwareSANRoot Cause AnalysisRedHat LinuxWindows ServerInfrastructure ArchitectureRoutersITILVirtualisationWindows FirewallStakeholder ManagementIncident & ProblemCisco Firewall SecurityNetwork SecurityVPNLinux
Job Description
Job Duties:
- Design, implement, and support end-to-end on-premises IT infrastructure (network, systems, and cloud environments)
- Implement, operate, and troubleshoot enterprise network infrastructure (routing, switching, firewalls, VPN, NAC, load balancers, wired/wireless networks).
- Deploy, configure, and support Windows Server, Linux, VMware/Hyper-V, and storage systems.
- Support Microsoft 365 and hybrid identity environments (Entra ID, Intune, Exchange, Teams).
- Perform troubleshooting and root cause analysis (RCA) for complex infrastructure issues.
- Implement security controls including segmentation, hardening, patching, and vulnerability management.
- Manage monitoring platforms (Zabbix, Grafana, PRTG, Nagios) including performance tuning and alert optimisation.
- Support ITSM processes (incident, problem, change) and participate in on-call operations
- Maintain IT asset inventory, lifecycle management, and technical documentation standards
- Manage vendors, SLAs, and infrastructure-related projects
- Provide L1/L2 support for end-user computing (Windows workstations and enterprise applications).
Job Requirements:
- Degree in IT, Computer Science, or related field.
- 8+ years of experience in IT infrastructure and/or network engineering.
- Strong hands-on experience with Palo Alto firewalls (policy management, VPN, NAT, troubleshooting) is required.
- Strong hands-on experience in the following areas: Networking: routing, switching, firewalls, VPN, VLAN, NAC / Systems: Windows Server, Linux, VMware / Hyper-V / Enterprise technologies: Cisco, Aruba, Fortinet, F5, Microsoft 365, SIEM, PAM / Monitoring & operations: Zabbix, Grafana, PRTG, Nagios, ITSM tools, backup solutions (e.g. Veeam)
- Strong troubleshooting skills with ability to perform root cause analysis (RCA).
- Experience in system hardening, patch management, and security operations.
- Good communication and stakeholder management skills.
- Experience in regulated environments (finance, telecom, technology) is an advantage.
About ANTINA PTE. LTD.
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