Senior Network Engineer (L3) - Onsite 24/7 Support Expert

Quantum Infotech Solutions; Singapore; Sur place; SGD 70 000 - 110 000; Plein temps

Résumé du poste

Quantum Infotech Solutions seeks a senior network engineer to implement and maintain Cisco routers, switches, IOS, and NAC solutions at client sites in Singapore. The role requires hands-on experience with Wireless networks, ISE/ClearPass, and firewall technologies, with CCNP as a strong plus.

You will support network operations, OS upgrades, security hardening, and engage with vendors for testing and preventive maintenance, ensuring 24x7 readiness when needed.

Qualifications

• Expert knowledge in Cisco routers and switches across all series.
• Strong Cisco IOS knowledge and NAC/ISE understanding.
• Experience with wireless controllers and Aruba ClearPass.
• CCNP certification or equivalent.
• Familiar with firewall products (Cisco ASA, FortiGate, Palo Alto).

Responsabilités

• Perform problem resolution, escalation and closure of incidents.
• Handle configuration changes and network operations at customer premises.
• Provide status updates to the service desk and tickets.
• Monitor network performance and bandwidth across the infra.
• Coordinate with vendor for testing and preventive maintenance.
• Apply OS upgrades and patching as required.
• Provide 24x5 on-site and 24x7 standby remote support for critical incidents.
• Maintain device inventory and certificates; manage security compliance.
• Engage third-party vendors to resolve hardware issues.

Connaissances

Cisco Routers

Cisco Switches

Cisco IOS

NAC

Aruba ClearPass

Cisco ISE

Wireless networks

OSI/TCP-IP

Level-2 support

CCNP

Network analytics

Firewall knowledge

F5 load balancers

Outils

Packet Tracer

Monitoring tools

Diagnostics tools

Description du poste

Quantum Infotech Solutions seeks a senior network engineer to implement and maintain Cisco routers, switches, IOS, and NAC solutions at client sites in Singapore. The role requires hands-on experience with Wireless networks, ISE/ClearPass, and firewall technologies, with CCNP as a strong plus.

You will support network operations, OS upgrades, security hardening, and engage with vendors for testing and preventive maintenance, ensuring 24x7 readiness when needed.