Senior Network Engineer - 24x7 Global Ops & Security

Lenovo; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Lenovo Singapore seeks a senior network engineer to manage and harden enterprise networks, ensuring high performance, security, and reliability. You will monitor with SolarWinds, PRTG and Nagios, respond to incidents, and coordinate with external vendors.

The role requires 8+ years of hands-on networking, CCNA or equivalent, and strong routing/SDN, VPN, and firewall skills. You will work 24x7 shifts, implement changes, and support cloud networking as needed.

Qualifications

• 8+ years of hands-on networking experience.
• Willing to work 24x7 shifts.
• Strong routing, SDN, VPN, and network security knowledge.
• CCNA certification or equivalent required.
• Experience with Cisco routing/switching, firewalls, and load balancers.
• Familiar with ITIL processes.

Responsibilities

• Ensure network performance using monitoring tools (SolarWinds, PRTG, Nagios).
• Respond to incidents in a timely manner and coordinate with vendors.
• Travel to remote sites for troubleshooting and support as needed.
• Escalate to 3rd party vendors for hardware, software and telco related problems.
• Implement changes for load balancers, routing, and security device configurations.
• Perform firmware updates for network and security devices.
• Check logs and secure events; close ITSM tickets timely.
• Collaborate with vendors for root cause analysis and incident resolution.

Skills

Networking architecture

SDN & VPNs

Security best practices

ITIL familiarity

Automation: Python, Ansible

Root cause analysis

Education

CCNA or equivalent

Tools

SolarWinds

PRTG

Nagios

Cisco Routing & Switching

Checkpoint Firewalls

Palo Alto Firewalls

NetFlow tracing

Job description

Lenovo Singapore seeks a senior network engineer to manage and harden enterprise networks, ensuring high performance, security, and reliability. You will monitor with SolarWinds, PRTG and Nagios, respond to incidents, and coordinate with external vendors.

The role requires 8+ years of hands-on networking, CCNA or equivalent, and strong routing/SDN, VPN, and firewall skills. You will work 24x7 shifts, implement changes, and support cloud networking as needed.