Sr Operation Mgmt Specialist

Lenovo (Singapore) Pte Ltd; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

An established industry player is on the lookout for a highly skilled L2 Network Engineer to join their dynamic IT infrastructure team. This exciting role involves managing and troubleshooting a variety of network devices, ensuring the reliability, performance, and security of the organization's IT landscape. The ideal candidate will have hands-on experience with Cisco, Palo Alto, Aruba NAC, and F5 technologies. You will collaborate with cross-functional teams and participate in network-related projects, contributing to a smarter and more efficient technological future. If you're passionate about network engineering and eager to make an impact, this opportunity is perfect for you.

Qualifications

• 3-5 years of experience in network engineering and support.
• Strong knowledge of Cisco networking devices and Palo Alto firewalls.

Responsibilities

• Manage and troubleshoot Cisco routers, switches, and firewalls.
• Monitor network performance and provide timely resolutions.

Skills

Cisco Networking

Palo Alto Firewalls

Aruba NAC

F5 Load Balancers

TCP/IP

Problem-Solving

Communication

Education

Bachelor's Degree in Computer Science or related field

Tools

Cisco Routers

Palo Alto Firewalls

F5 Load Balancers

Job description

Why Work at Lenovo

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

Lenovo is a US$57 billion revenue global technology powerhouse, ranked #248 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).

Description and Requirements

Job Summary:

We are seeking a highly skilled and motivated L2 Network Engineer to join our dynamic IT infrastructure team.
The ideal candidate will have hands-on experience managing and troubleshooting network devices and technologies, including Cisco, Palo Alto, Aruba NAC, and F5 load balancers.
The L2 Network Engineer will be responsible for ensuring network reliability, performance, and security across our organization’s IT landscape.

Key Responsibilities:
- 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.

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.