Senior Network Engineer: Cloud Networking & Security

NTT DATA, Inc.; Cyberjaya; On-site; MYR 90,000 - 150,000; Full time

Job summary

NTT DATA is seeking an experienced Network Engineer to design and manage LAN/WAN topology and firewall policies. The role covers SSL/VPN, DNS/DHCP, load balancing, cloud networking, and anti-DDoS management across on-premises and cloud environments.

You will monitor performance, perform QoS analysis, and maintain security posture while coordinating with vendors and supporting incident response. This position requires 5-10 years of relevant experience and hands-on expertise with Aruba, Fortinet

Qualifications

• 5-10 years of experience in a Network Engineer or equivalent position.

Responsibilities

• Design and manage LAN and WAN topology — Aruba switching, VLAN provisioning and layer 3 routing
• Manage Fortinet and MikroTik firewall policies — rule lifecycle, NAT, CVE patching and security profiles
• Configure and maintain SSL VPN and client VPN services; manage user profiles and monitor tunnel health
• Manage DNS zones, DHCP scopes and IP address management across all environments
• Configure and maintain load balancer rules, health checks and listener configuration
• Manage cloud networking across all provider environments — security groups, routing and cloud VA firewalls
• Operate and maintain anti-DDoS appliances and cloud DDoS mitigation services
• Monitor network performance and availability using Cisco DNA and Cisco Thousand Eyes
• Monitor QoS and conduct regular performance and policy reviews; produce trend analysis reports
• Maintain network security posture; respond to security anomalies and policy violation alerts
• Participate in the change advisory process for all network changes and maintain audit records
• Maintain network documentation, configuration runbooks and topology diagrams
• Provide Level 2/3 network incident support and coordinate with vendors where required

Skills

LAN and WAN

Aruba switching

Firewall management

VPN

DNS/DHCP/IPAM

Load balancing

Cloud networking

Anti-DDoS

Network monitoring

QoS

Security policy compliance

IaC (Terraform/Ansible)

Tools

Aruba

Fortinet FortiGate

MikroTik

SSL VPN

Job description

NTT DATA is seeking an experienced Network Engineer to design and manage LAN/WAN topology and firewall policies. The role covers SSL/VPN, DNS/DHCP, load balancing, cloud networking, and anti-DDoS management across on-premises and cloud environments.

You will monitor performance, perform QoS analysis, and maintain security posture while coordinating with vendors and supporting incident response. This position requires 5-10 years of relevant experience and hands-on expertise with Aruba, Fortinet