Onsite Network Engineer — Routing, Switching & Security

HI5 CONSULTING SOLUTIONS PTE. LTD.; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

HI5 CONSULTING SOLUTIONS PTE. LTD. is seeking a Network Engineer specialized in routing and switching to manage Cisco routers/switches, IOS, NAC, and wireless infrastructure at client sites. The role requires hands-on, multi-vendor experience and 24x7 support readiness.

The candidate should have CCNP certification and strong troubleshooting, monitoring, and vendor coordination skills to ensure secure and reliable network operations at customer premises.

Qualifications

• 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
• Hands-on experience with monitoring, network diagnostic, Packet Tracers and network analytics tools
• Knowledge on Firewall Products like Cisco ASA, FortiGate, Palo Alto, Checkpoint
• Knowledge on Aruba ClearPass/Cisco ISE, Cisco wireless controllers
• Knowledge on F5 load balancers

Responsibilities

• 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
• Perform configuration change activities
• 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.

Skills

Cisco Routers

Cisco Switches

Cisco IOS

NAC

Aruba ClearPass

Cisco ISE

Wireless network

OSI/TCP-IP

Layer 2 troubleshooting

Firewall: Cisco ASA

FortiGate

Palo Alto

Check Point

Aruba ClearPass

F5 load balancers

Network monitoring

Packet Tracer

Analytics tools

Tools

Packet Tracer

Monitoring tools

Analytics tools

Job description

HI5 CONSULTING SOLUTIONS PTE. LTD. is seeking a Network Engineer specialized in routing and switching to manage Cisco routers/switches, IOS, NAC, and wireless infrastructure at client sites. The role requires hands-on, multi-vendor experience and 24x7 support readiness.

The candidate should have CCNP certification and strong troubleshooting, monitoring, and vendor coordination skills to ensure secure and reliable network operations at customer premises.