Operation Mgmt Specialist

Req #

WD

Career area:

Information Technology

Country/Region:

Singapore

State:

Central Singapore

City:

SINGAPORE

Date:

Tuesday, October 28, 2025

Working time:

Full-time

Additional Locations:

• Singapore - Central Singapore - Singapore

• Singapore - Central Singapore - SINGAPORE

We are Lenovo. We do what we say. We own what we do. We WOW our customers.

Lenovo is a US$69 billion revenue global technology powerhouse, ranked #196 in the Fortune Global 500, and serving millions of customers every day in 180 markets. Focused on a bold vision to deliver Smarter Technology for All, Lenovo has built on its success as the world's largest PC company with a full-stack portfolio of AI-enabled, AI-ready, and AI-optimized devices (PCs, workstations, smartphones, tablets), infrastructure (server, storage, edge, high performance computing and software defined infrastructure), software, solutions, and services. Lenovo's continued investment in world-changing innovation is building a more equitable, trustworthy, and smarter future for everyone, everywhere. Lenovo is listed on the Hong Kong stock exchange under Lenovo Group Limited (HKSE: 992) (ADR: LNVGY).

This transformation together with Lenovo's world-changing innovation is building a more inclusive, trustworthy, and smarter future for everyone, everywhere. To find out more visit , and read about the latest news via our StoryHub.

• 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 task of tools. - Preform periodic version upgrade of tools. - Work with Security team to fix vulnerabilities identified in tools (monthly basis) - Facilitate investigation of complex technical issues. - Identify and escalate issues and work with vendors till issue closure, provide RCA. - Monitor instructions received or sent via internal monitoring system. - Perform health checks, system connectivity, consistency and data integrity.

Required 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

• Singapore - Central Singapore - SINGAPORE

• Singapore

• Singapore - Central Singapore

* Singapore - Central Singapore - Singapore , * Singapore - Central Singapore - SINGAPORE