[LPS] Network Engineer - Contractual

Lenovo; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

Lenovo seeks an experienced Network Engineer in Singapore to manage and troubleshoot Cisco routers, switches, and firewalls, administer Palo Alto firewalls, and support Aruba NAC solutions. You will configure F5 load balancers, monitor performance, document topology, and collaborate across teams on network projects.

Ideal candidates have 3–5 years in network engineering, CCNA/PCNSA/ACCP or higher, and familiarity with RSA NetWitness or SIEM tools.

Qualifications

• 3‑5 years of experience in network engineering and support.
• Strong knowledge and hands‑on experience with Cisco networking devices and technologies.
• Proficiency in managing Palo Alto firewalls and security policies.
• Experience with Aruba NAC implementation and support.
• Familiarity with F5 load balancer configuration and troubleshooting.
• Understanding of TCP/IP, VLANs, VPNs, routing protocols (BGP, OSPF), and switching concepts.
• Excellent problem‑solving skills and attention to detail.
• Effective communication and collaboration abilities.

Responsibilities

• Manage, configure, and troubleshoot Cisco routers, switches, and firewalls.
• Administer Palo Alto firewalls, including policy creation, monitoring, and security rule implementation.
• Support Aruba NAC solutions, including authentication, authorization, and endpoint compliance.
• Configure and maintain F5 load balancers, ensuring efficient traffic distribution and high availability of services.
• Monitor network performance, identify issues, and provide timely resolutions.
• Collaborate with cross‑functional teams to support business operations and network‑related projects.
• Maintain network documentation, including topology diagrams, device configurations, and incident reports.
• Participate in on‑call rotation and provide L2 support for escalated network incidents.
• Ensure compliance with security policies and industry best practices.
• Perform day‑to‑day administration tasks for tools.
• Perform periodic version upgrades of tools.
• Work with the Security team to fix vulnerabilities identified in tools on a monthly basis.
• Facilitate investigation of complex technical issues.
• Identify and escalated issues and work with vendors until closure, providing RCA.
• Monitor instructions received or sent via internal monitoring system.
• Perform health checks, system connectivity, consistency, and data integrity checks.

Skills

Cisco networking devices

Palo Alto firewalls

Aruba NAC

F5 load balancer

TCP/IP

VLANs/VPNs

Routing protocols (BGP/OSPF)

Troubleshooting

Communication

Education

CCNA or higher

PCNSA or higher

ACCP or equivalent

F5-Cert BIG-IP Administrator (F5-CA) or higher

RSA NetWitness or SIEM knowledge

Tools

RSA NetWitness

Job description

Description and Requirements

• Manage, configure, and troubleshoot Cisco routers, switches, and firewalls.
• Administer and maintain Palo Alto firewalls, including policy creation, monitoring, and security rule implementation.
• Support Aruba NAC solutions, including authentication, authorization, and endpoint compliance.
• Configure and maintain F5 load balancers, ensuring efficient traffic distribution and high availability of services.
• Monitor network performance, identify issues, and provide timely resolutions.
• Collaborate with cross‑functional teams to support business operations and network‑related projects.
• Maintain network documentation, including topology diagrams, device configurations, and incident reports.
• Participate in on‑call rotation and provide L2 support for escalated network incidents.
• Ensure compliance with security policies and industry best practices.
• Perform day‑to‑day administration tasks for tools.
• Perform periodic version upgrades of tools.
• Work with the Security team to fix vulnerabilities identified in tools on a monthly basis.
• Facilitate investigation of complex technical issues.
• Identify and escalated issues and work with vendors until closure, providing RCA.
• Monitor instructions received or sent via internal monitoring system.
• Perform health checks, system connectivity, consistency, and data integrity checks.

Qualifications

• 3‑5 years of experience in network engineering and support.
• Strong knowledge and hands‑on experience with Cisco networking devices and technologies.
• Proficiency in managing Palo Alto firewalls and security policies.
• Experience with Aruba NAC implementation and support.
• Familiarity with F5 load balancer configuration and troubleshooting.
• Understanding of TCP/IP, VLANs, VPNs, routing protocols (BGP, OSPF), and switching concepts.
• Excellent problem‑solving skills and attention to detail.
• Effective communication and collaboration abilities.

Preferred Certifications

• Cisco Certified Network Associate (CCNA) or higher.
• Palo Alto Networks Certified Network Security Administrator (PCNSA) or higher.
• Aruba Certified ClearPass Professional (ACCP) or equivalent.
• F5 Certified BIG‑IP Administrator (F5‑CA) or higher.
• Knowledge in SIEM/Log management tools such as RSA Netwitness.

Additional Locations

• Singapore - Central Singapore - Singapore

If you require an accommodation to complete this application, please [e-mail]