Senior IT / Network Engineer – Enterprise Infrastructure

The GMP Group; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

GMP Technologies (S) Pte Ltd is seeking an experienced Senior IT / Network Engineer to oversee and secure its enterprise IT infrastructure in Singapore. You will lead network design, deployments, and infrastructure upgrades with a focus on reliability across network, systems, and facilities teams.

Responsibilities include designing high-availability networks, NAC deployments, firewall/EDR/DLP management, AD/GPO, backups, DR, VDI, and vendor management with strict access controls and compliance.

Qualifications

• 5–8+ years hands-on enterprise network administration and IT infra management.
• Bachelor's Degree or Diploma in CS/IT/Networking or related field.
• Certifications such as CCNP/CCNA, CISSP/CISM or Fortinet NSE 4+ are preferred.

Responsibilities

• Design, deploy, and maintain high-availability network infrastructure across core switches, firewalls, routers, SD-WAN and SASE.
• Lead NAC deployments and enforce RBAC across wired, wireless, and VPN networks.
• Audit and troubleshoot firewalls, IPS/IDS, EDR and DLP agents; manage AD, GPO/OU, and M365.
• Oversee backup, DR readiness and VDI environments; manage IT cabling for office expansions.
• Direct vendors and ISPs through reviews, SLA evaluations, and budget tracking; document topology and SOPs.

Skills

Enterprise networking

IT infrastructure

Systems engineering

Vendor management

Education

Bachelor's Degree or Diploma in CS/IT/Networking

Tools

HPE Aruba ClearPass

Cisco switches

Aruba

Huawei switches

Fortinet firewalls

SASE

SD-WAN

IPsec VPN

802.1X

Job description

Our client, a Singapore-based organisation, is seeking an experienced Senior IT / Network Engineer to oversee and secure its enterprise IT infrastructure. This full-time permanent role offers the opportunity to lead network design, systems deployment and infrastructure upgrades with a focus on reliability. You will work across network, systems and facilities teams on critical projects.

Responsibilities

• Design, deploy and maintain high-availability network infrastructure, including core switches, firewalls, routers, SD-WAN and SASE solutions
• Lead NAC deployments to enforce role-based access policies across wired, wireless and VPN networks
• Administer, audit and troubleshoot firewalls, IPS/IDS, EDR and DLP agents
• Manage Active Directory, Group Policy, Microsoft 365 and OU restructuring to maintain strict access control
• Maintain enterprise backup systems, disaster recovery readiness and VDI environments
• Lead IT and structured cabling requirements for office renovations and expansion fit-outs
• Direct vendors, ISPs and hardware suppliers through quotation reviews, SLA evaluations and budget tracking
• Author technical documentation, network topology diagrams and SOPs, and conduct vulnerability assessments

Requirements

• Minimum 5 to 8+ years of hands-on experience in enterprise network administration, systems engineering and IT infrastructure management
• Bachelor's Degree or Diploma in Computer Science, Information Technology, Network Engineering or a related discipline
• Hands-on experience with HPE Aruba ClearPass, Cisco, Aruba or Huawei switches, Fortinet firewalls, SASE, SD-WAN, IPsec VPN and 802.1X
• Experience with Windows Server, Active Directory/Entra ID, GPO/OU management, VMware/Hyper-V and VDI
• Knowledge of BitLocker, DLP, KnowBe4, PDPA and endpoint security compliance
• Strong vendor management, stakeholder communication and technical leadership skills
• Certifications such as CCNP/CCNA, HPE Aruba, CISSP/CISM, Fortinet NSE 4+ or MCSE are preferred

We regret that only shortlisted candidates will be notified.

GMP Technologies (S) Pte Ltd | EA License: 09C3051 | EA Personnel: Arcus Ang | Registration No: R1985843