HUI JUN LIN

Spearheaded APAC network and voice strategy, guiding critical site transitions and executing global roadmap initiatives to enhance regional infrastructure reliability and performance.

Managed and optimized complex SD-WAN, WLAN, LAN VRF, and routing/switching environments, ensuring high performance and reliability across global operations.

Administered and maintained Palo Alto NGFW policies, Cisco ISE, Zscaler ZPA, and IPSec infrastructure, significantly strengthening the organization's network security posture.

Executed complex global network and voice migrations, infrastructure builds, and automation projects, significantly improving system performance and operational efficiency.

Collaborated cross-functionally with Corporate Security, Procurement, and regional IT teams to establish robust governance frameworks and drive operational efficiency initiatives.

Drove significant cost optimization, enhanced system reliability by 15%, and standardized infrastructure across the organization to improve scalability and maintainability.

Managed comprehensive APAC WAN, LAN, WLAN, and VoIP infrastructure, supporting critical operations across multiple regional offices.

Provided expert Level 2 support, ensuring 99.9% operational reliability for Cisco and Meraki network environments and minimizing downtime.

Maintained robust Wi-Fi, DNS, DHCP, and RADIUS infrastructure, proactively monitoring daily network KPIs to ensure optimal performance and stability.

Supported the Cisco Voice Gateway platform and coordinated MPLS escalations, resolving critical issues efficiently to sustain business communication.

Documented network standards and played a key role in the APAC SD-WAN transformation initiative, enhancing regional network architecture and future-proofing.

Administered complex Cisco/Alcatel networks, providing advanced troubleshooting that resolved critical system issues for enterprise clients, reducing incident resolution time by 20%.

Developed detailed network diagrams, comprehensive implementation plans, and upgrade documentation, facilitating seamless system deployments and migrations.

Managed vendor relationships and supported incident escalation for enterprise customers, ensuring timely resolution and maintaining high service levels.

Delivered end-to-end LAN design, engineering, and Level 2 support across the APAC region, ensuring robust network performance and stability for business operations.

Collaborated effectively with Voice and Hosting teams to achieve unified infrastructure integration, enhancing overall system interoperability and reducing operational silos.

Drove continuous improvement initiatives, aligning network operations with global standards and best practices, leading to a 10% improvement in network efficiency.

Responded to and resolved network faults and service requests promptly within defined SLAs, maintaining high service availability for critical systems.

Performed proactive network monitoring and meticulously maintained infrastructure documentation, improving system visibility and troubleshooting efficiency by 15%.

Provided 24/7 operational support, successfully implementing network changes and updating documentation to ensure continuous service delivery and minimal disruption.

Managed network incident response and service deployment, ensuring operational continuity and minimizing downtime for managed service clients.

Contributed to 24/7 managed service support operations, maintaining high availability for critical network systems and adhering to strict service level agreements.