- Clementi West Region (Singapore) Singapore
ANTINA PTE. LTD. Hiring! Full Time Senior IT Infrastructure Engineer in West Region (Singapore), Earn up to SGD 9,000 - Ricebowl
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Job Description
Responsibilities
About the role
You will be responsible for the design, implementation, management, and operation of enterprise IT infrastructure across networks, systems, and cloud platforms, ensuring high availability, performance, and security. This includes a strong focus on secure configuration, system hardening, and compliance with regulatory requirements. This is a hands-on role that requires the ability to translate design into practical implementation across network devices, servers (Windows/Linux), and cloud environments. You will work closely with the Cybersecurity team to implement security controls, address vulnerabilities, and ensure compliance with organizational and regulatory standards.
Key responsibilities
Design and implement end-to-end IT infrastructure solutions.
Implement, administer and support network infrastructure (wired and wireless networks, routing, switching, load balancer, firewalls, VPNs, NAC).
Implement, support and administer systems (Windows Server, Linux) and virtualization platforms (VMware, Hyper-V) including storage server and vSAN.
Implement, support and administer IT Infrastructure monitoring tools such as Grafana, Zabbix, PRTG and Nagios.
Administer Microsoft 365 services (Entra ID, Intune, Exchange Online, SharePoint Online, Teams), and support hybrid identity (on-prem AD + Entra ID).
Troubleshoot complex infrastructure issues and perform root cause analysis.
Plan and execute patching, upgrades, migrations, and capacity improvements.
Implement and enforce security best practices (segmentation, firewalls, VPNs, NAC).
Perform system hardening (CIS benchmarks or equivalent).
Support incident response, troubleshooting, and on-call operations.
About you
Bachelor's Degree in Computer Science, Information Technology, or a related field.
Minimum of 8 years of experience in network engineering, IT infrastructure management, and IT administration.
Strong technical and hands-on experience in network technologies: Routing, switching, ACL, VLANs, Firewalls, VPNs, and Network Access Control (NAC), wired and wireless networks.
Strong technical and hands-on experience in enterprise network and security solutions: Cisco, Aruba, Palo Alto, Fortinet, F5 Load Balancers, PAM, SIEM and Microsoft network technologies.
Strong technical and hands-on experience in systems and infrastructure: M365, Windows Servers and RedHat Enterprise Linux, Virtualization Platforms (VMware and Hyper-V), NAS, SAN and vSAN storage.
Hands-on experience with system hardening, patch management, and infrastructure security practices.
Hands-on experience with both on-premises and cloud-based infrastructure.
Relevant certifications such as CCNA, RHCE, MCSE, VMware Certified Professional (VCP) or equivalent.
Proven ability to troubleshoot complex issues, perform root cause analysis (RCA) and deliver reliable solutions.
Good communication skills with the ability to work independently and collaborate effectively with cross-functional teams.
Antina Pte. Ltd. is a joint venture between
M1 Limited
and
StarHub Mobile Pte Ltd
.
Antina was set up to build and operate a shared Radio Access Network and provide wholesale telecommunication services.
By doing so, Antina allows both M1 and StarHub to operate each of their own 5G Mobile Networks and provide 5G Mobile services to their subscribers and various mobile virtual network operators that utilise their mobile networks.
You will be responsible for the design, implementation, management, and operation of enterprise IT infrastructure across networks, systems, and cloud platforms, ensuring high availability, performance, and security. This includes a strong focus on secure configuration, system hardening, and compliance with regulatory requirements. This is a hands-on role that requires the ability to translate design into practical implementation across network devices, servers (Windows/Linux), and cloud environments. You will work closely with the Cybersecurity team to implement security controls, address vulnerabilities, and ensure compliance with organizational and regulatory standards.
Key responsibilities
Design and implement end-to-end IT infrastructure solutions.
Implement, administer and support network infrastructure (wired and wireless networks, routing, switching, load balancer, firewalls, VPNs, NAC).
Implement, support and administer systems (Windows Server, Linux) and virtualization platforms (VMware, Hyper-V) including storage server and vSAN.
Implement, support and administer IT Infrastructure monitoring tools such as Grafana, Zabbix, PRTG and Nagios.
Administer Microsoft 365 services (Entra ID, Intune, Exchange Online, SharePoint Online, Teams), and support hybrid identity (on-prem AD + Entra ID).
Troubleshoot complex infrastructure issues and perform root cause analysis.
Plan and execute patching, upgrades, migrations, and capacity improvements.
Implement and enforce security best practices (segmentation, firewalls, VPNs, NAC).
Perform system hardening (CIS benchmarks or equivalent).
Support incident response, troubleshooting, and on-call operations.
About you
Bachelor's Degree in Computer Science, Information Technology, or a related field.
Minimum of 8 years of experience in network engineering, IT infrastructure management, and IT administration.
Strong technical and hands-on experience in network technologies: Routing, switching, ACL, VLANs, Firewalls, VPNs, and Network Access Control (NAC), wired and wireless networks.
Strong technical and hands-on experience in enterprise network and security solutions: Cisco, Aruba, Palo Alto, Fortinet, F5 Load Balancers, PAM, SIEM and Microsoft network technologies.
Strong technical and hands-on experience in systems and infrastructure: M365, Windows Servers and RedHat Enterprise Linux, Virtualization Platforms (VMware and Hyper-V), NAS, SAN and vSAN storage.
Hands-on experience with system hardening, patch management, and infrastructure security practices.
Hands-on experience with both on-premises and cloud-based infrastructure.
Relevant certifications such as CCNA, RHCE, MCSE, VMware Certified Professional (VCP) or equivalent.
Proven ability to troubleshoot complex issues, perform root cause analysis (RCA) and deliver reliable solutions.
Good communication skills with the ability to work independently and collaborate effectively with cross-functional teams.
Antina Pte. Ltd. is a joint venture between
M1 Limited
and
StarHub Mobile Pte Ltd
.
Antina was set up to build and operate a shared Radio Access Network and provide wholesale telecommunication services.
By doing so, Antina allows both M1 and StarHub to operate each of their own 5G Mobile Networks and provide 5G Mobile services to their subscribers and various mobile virtual network operators that utilise their mobile networks.
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