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Network Infrastructure Specialist

2 months ago

Singapore QUANTUM INFOTECH SOLUTIONS PTE. LTD. Full time
Job Summary

Quantum Infotech Solutions Pte. Ltd. is seeking a highly skilled Network Infrastructure Specialist to lead our Routing and Switching team. As a key member of our network operations team, you will be responsible for ensuring the smooth operation of our network infrastructure, including performance monitoring, bandwidth management, and troubleshooting.

Key Responsibilities
  • Network Operations
    • Perform day-to-day network operations, including performance monitoring, bandwidth monitoring, and troubleshooting.
    • Work with customers' vendors to perform testing and preventative maintenance according to the schedule provided by the customer for the network equipment.
    • Perform periodic OS upgrades and patching as and when required.
  • Problem Resolution
    • Perform problem resolution, escalation, and/or closure of incidents, 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.
  • Security and Compliance
    • 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.
  • Inventory Management
    • 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.
  • Vendor Management
    • Engage third-party 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.
Requirements
  • 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.
  • 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.
Preferred Qualifications
  • Switches.
  • TCP/IP.
  • Access Points.
  • Troubleshooting.
  • Hardware.
  • Cisco Routing & Switching.
  • CCNP.
  • CheckPoint Firewall.
  • Network Access Control.
  • Wireless.
  • Aruba Wireless.
  • Service Desk.
  • Networking.
  • Cisco Routers.
  • ASA.
  • Network Infrastructure.
  • Cisco Firewall Security.
  • Technical Support.