Senior Network Engineer - Cisco & Security (Onsite/Remote)

ENCORA TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

ENCORA TECHNOLOGIES PTE. LTD. is seeking a seasoned Network Engineer to implement and maintain Cisco routers/switches, ensure Cisco IOS proficiency, and support NAC solutions.

You will handle Level-2 troubleshooting, firewall knowledge, and multi-vendor hardware across customer premises. Expect 24x5 shifts and close coordination with IBM environments. The role requires CCNP, strong OSI/TCPIP knowledge, and hands-on monitoring and diagnostics experience.

Qualifications

• Expert level knowledge in implementation and maintenance of Cisco Routers and Switches of all series.

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/IBM 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/IBM
• 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 & switches

Cisco IOS

NAC / network access control

Aruba ClearPass / Cisco ISE

Wireless networks / APs / controllers

OSI / TCP/IP knowledge

Level-2 support & troubleshooting

CCNP certification

Network monitoring & diagnostic tools

Firewall products (Cisco ASA / FortiG^

Aruba ClearPass/Cisco ISE, Wireless Mg

F5 load balancers

Tools

Packet Tracer

Network monitoring tools

Job description

ENCORA TECHNOLOGIES PTE. LTD. is seeking a seasoned Network Engineer to implement and maintain Cisco routers/switches, ensure Cisco IOS proficiency, and support NAC solutions.

You will handle Level-2 troubleshooting, firewall knowledge, and multi-vendor hardware across customer premises. Expect 24x5 shifts and close coordination with IBM environments. The role requires CCNP, strong OSI/TCPIP knowledge, and hands-on monitoring and diagnostics experience.