Senior Network & Security Engineer: Lead Secure, Scalable Networks

NTT SINGAPORE PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

NTT Singapore PTE. LTD. is seeking a Senior Network & Security Engineer to join our Network Operations and Engineering team in Singapore.

You will implement and maintain the network infrastructure, working with cross-functional teams to ensure reliability, scalability, and security of the enterprise network. You will lead deployment projects, collaborate with vendors, provide Tier-3 support, create design and operational standards, and drive automation.

Qualifications

• 8–14 years of experience in core network technologies such as Cisco ACI, Checkpoint and Palo Alto Firewalls, F5 Load Balancer & WAF.
• Strong ability to lead and manage complex networks for Datacenter or Public Cloud migrations.
• Proven track record in implementing and overseeing large-scale network deployments.

Responsibilities

• Lead network deployment projects with timely, successful implementation of solutions.
• Collaborate with vendors for solution architecture, procurement and installation.
• Provide Tier-3 support for network and security issues and participate in on-call rotations.

Skills

Cisco ACI Multi Pod / Multi Site

F5 Load Balancers & WAF

Checkpoint & Palo Alto Firewalls & IPS

LAN/WAN & Network Security

Project & Vendor Management

AI in Network Operations

MCP/LLM integration with network

Automation (Ansible, Terraform)

Tools

Infoblox IPAM/DNS/DHCP

Bluecoat Proxy

Akamai CDN

SolarWinds

Riverbed

ThousandEyes

Wireshark

Ansible

Terraform

Job description

NTT Singapore PTE. LTD. is seeking a Senior Network & Security Engineer to join our Network Operations and Engineering team in Singapore.

You will implement and maintain the network infrastructure, working with cross-functional teams to ensure reliability, scalability, and security of the enterprise network. You will lead deployment projects, collaborate with vendors, provide Tier-3 support, create design and operational standards, and drive automation.