Senior Network engineer(IT Network Communications)_Contract

ntt singapore pte. ltd.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

NTT Singapore Pte. Ltd. seeks an experienced Network Operations professional to oversee enterprise networks spanning SD-WAN, LAN, Wireless, Voice and NAC, driving transformation and technology refresh.

You will lead incident resolution, service management, and vendor coordination to ensure operational excellence while supporting large-scale projects. Automation with Ansible and Python will be key to success.

Qualifications

• 6-10 years of experience in Network Operations within a multi-vendor environment.
• Expertise in at least two areas: Network Security, SD-WAN, LAN/Wireless, Voice & Collaboration, NAC, or Network Automation.
• Hands-on experience with Cisco, Aruba, Versa; knowledge of cloud networking and network architecture design.

Responsibilities

• Manage and support enterprise network operations across SD-WAN, LAN, Wireless, Voice, Collaboration, and NAC technologies.
• Drive network transformation, automation, and technology refresh initiatives.
• Provide technical consultancy and develop solutions for complex network requirements.
• Lead incident resolution, service management, and vendor coordination to ensure operational excellence.
• Support large-scale network projects and ensure timely delivery.
• Implement and maintain automation using Ansible, Python, and related tools.

Skills

Network Operations

Network Security

SD-WAN

LAN/Wireless

Voice & Collaboration

NAC

Network Automation

Ansible

Python

Cloud Networking

Vendor Management

Tools

Cisco

Aruba

Versa

ISE

ClearPass

Job description

• Manage and support enterprise network operations across SD-WAN, LAN, Wireless, Voice, Collaboration, and NAC technologies.
• Drive network transformation, automation, and technology refresh initiatives.
• Provide technical consultancy and develop solutions for complex network requirements.
• Lead incident resolution, service management, and vendor coordination to ensure operational excellence.
• Support large-scale network projects and ensure timely delivery.
• Implement and maintain automation using Ansible, Python, and related tools.

Requirements

• 6-10 years of experience in Network Operations within a multi-vendor environment.
• Strong expertise in at least two areas: Network Security, SD-WAN, LAN/Wireless, Voice & Collaboration, NAC, or Network Automation.
• Hands-on experience with Cisco, Aruba, Versa, ISE, ClearPass, and related networking technologies.
• Knowledge of cloud networking and network architecture design.
• Experience with automation tools such as Ansible and Python.
• Relevant certifications (Cisco, Aruba, Versa, etc.) preferred.
• Strong troubleshooting, stakeholder management, communication, and consulting skills.

Key Skills: SD-WAN (Cisco Viptela, Versa), LAN, Wireless (Aruba), Voice & Collaboration, Cisco ISE, Aruba ClearPass, Network Automation, Ansible, Python, Cloud Networking, Service Delivery, Incident Management, Vendor Management.