L2 NETWORK ENGINEER

Hi5 Consult; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

Hi5 Consult is seeking a Network Engineer specialized in routing and switching to implement and maintain Cisco routers and switches, with strong Cisco IOS knowledge and NAC expertise. The role includes on-site work at client premises, 24x7 readiness for critical incidents, and collaboration with multiple vendors for maintenance and security updates.

The ideal candidate will hold CCNP certification, have hands-on experience with firewalls (Cisco ASA/FortiGate/Palo Alto), wireless controllers, and

Qualifications

• Expertise in configuring and maintaining Cisco routers and switches across all series.
• Strong knowledge of Cisco IOS and NAC solutions (ClearPass/ISE).
• Hands-on firewall experience across multiple vendors.
• Experience with wireless networks, controllers, and WAPs; CCNP certified.

Responsibilities

• Provide L2 technical support and troubleshooting for routing and switching issues.
• Perform incident management, problem analysis, and escalation as needed.
• Operate network infrastructure at client premises, including monitoring and performance checks.
• Coordinate with vendors for testing and maintenance per client schedules.
• Apply OS upgrades and security patches; maintain inventory and certificates.
• Deliver proactive incident reports within 24 hours for network-related problems.
• Engage third-party vendors and monitor End of Life / End of Support notices.
• Ensure security compliance per IBM/Client policies and standard procedures.

Skills

Cisco routers/switches

Cisco IOS

NAC

Aruba ClearPass

Cisco ISE

Wireless networking

OSI/TCP-IP

L2 support

CCNP

Packet Tracer

Network monitoring tools

Firewall expertise

Wireless controllers

F5 load balancers

Tools

Packet Tracer

Monitoring tools

Job description

JOB DESCRIPTION – Network Engineer – Routing and Switching

Required Key Skills

• Expert level knowledge in implementation and maintenance of Cisco Routers and Switches of all series.
• Good knowledge in Cisco IOS
• Good knowledge in implementation and operations support of NAC (network access control)
• Good knowledge in Aruba Clear Pass / Cisco ISE
• Good knowledge in Wireless Network / Access Points / Controllers support and troubleshooting
• Expert level understanding of the OSI or TCP/IP model
• Provide Level-2 technical support and troubleshooting to resolve issues
• CCNP certification
• Hands-on experience with monitoring, network diagnostic, Packet Tracers and network analytics tools
• Good knowledge on Firewall Products like Cisco ASA, FortiGate, Palo Alto, Checkpoint
• Good knowledge on Aruba ClearPass/Cisco ISE, Cisco wireless controllers
• Knowledge on F5 load balancers

Priority Tasks

• Workplace is at customer premises and staff has to follow instituted Workplace securities
• Perform Problem resolution, escalation and/or closure of incident including problem analysis and identification of the source of the problem w.r.t Routing and Switching
• Provide problem status to the Service Desk and/or update into the ticketing tool according to the Procedures Manual
• Perform day-to-day Network operation for the Network Infra-structure and Network Equipment at the customer premises, including performance monitoring, bandwidth monitoring.
• Work with customer’s vendor to perform testing and preventative maintenance according to the schedule provided by the customer for the Network Equipment
• Perform periodic OS upgrade and Patching as and when required.
• 24X5 rotational shift onsite availability and 24X7 standby / remote support availability as and when needed for critical incidents.
• Perform Problem resolution, escalation and/or closure of incident including problem analysis and identification of the source of the problem
• Provide proactive incident reports for all Network related problems, faults, events within TWENTY-FOUR (24) hours
• Respond to all fault calls inclusive of emails and other forms of communications for Firewall related issues and problems reported
• Escalate the problem to Vendors Support in timely manner and get the issue resolved within the specified time as agreed with the customer
• Provide multi-vendor equipment support across a wide range of models and types of networking equipment
• Maintain the inventory of certificates and install/update/renew certificates as and when required.
• Perform security activities like hardening/periodic health check/ ID validation and other compliance activities as per IBM security policies and standards.
• Maintain/Update IBM inventory list and compliance related databases or similar Databases.
• Maintain the device inventory list for the client when needed, Maintain the software/firmware for all the devices up to date
• Subscribe to vendor notifications for the managed devices for vulnerabilities and review/validate/apply security patches pro-actively.
• Perform device activation / deactivation as per IBM service activation and deactivation process.
• Maintain the IP address inventory and allocate new IP address when required by business.
• Engage third part vendors to resolve hardware issues and follow up till closure
• Monitor vendor End of Life / End of Support notifications for all In Scope Devices and inform the client.