Network Engineer (L3) at nttlimited – Cyberjaya | Jobyssey

Make an impact with NTT DATA
Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

KEY 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

REQUIRED SKILLS & COMPETENCIES

5–10 years of experience in as a Network Engineer or equivalent position.
LAN and WAN — switching, VLAN management, trunking, Spanning Tree and layer 3 routing
Aruba switching — configuration, VLAN provisioning, port management and policy management
Firewall management — Fortinet FortiGate and MikroTik; policy creation, NAT and security profiles
VPN — SSL VPN and client VPN gateway configuration, profile management and monitoring
DNS, DHCP and IPAM — zone management, scope configuration and IP address lifecycle
Load balancing — rule configuration, health check management and listener lifecycle
Cloud networking — virtual networks, security groups, NSG, cloud VA firewall and routing
Cloud network virtual appliance firewalls — deployment, policy management and monitoring
Anti-DDoS — on-premises DDoS appliance and cloud-native DDoS mitigation management
Network monitoring — Cisco DNA Centre and Cisco Thousand Eyes for visibility and synthetic testing

QoS monitoring — quality of service configuration, monitoring and performance trend analysis
Network security support — posture monitoring, CVE patching and security policy compliance
Infrastructure as code — Terraform and Ansible for network configuration management
Performance and policy review — regular network performance analysis and policy optimisation

Workplace type:

About NTT DATA
NTT DATA is a $30+ billion business and technology services leader, serving 75% of the Fortune

Global 100. We are committed to accelerating client success and positively impacting society through

responsible innovation. We are one of the world’s leading AI and digital infrastructure providers, with

unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and

application services. Our consulting and industry solutions help organizations and society move

confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more

than 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as

established and start-up partners. NTT DATA is part of NTT Group, which invests over $3 billion each

year in R&D.

Equal Opportunity Employer
NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category. Join our growing global team and accelerate your career with us. Apply today.

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