Lead Network Architect & Infrastructure Manager

About the role

Seeking an experienced Senior Network Infrastructure Lead to oversee, design, and implement high-performance, enterprise-grade network environments. This role is responsible for driving large-scale architecture projects across cloud and on-premise infrastructure, collaborating with cross-functional technical teams, and ensuring seamless network performance and operations.

Key responsibilities

• Design and deploy scalable, secure network architectures, incorporating LAN, WAN, MPLS, VPN, VXLAN, Cisco ACI, and multi-cloud environments (AWS & Azure)
• Partner with internal business units, application teams, and information security/risk divisions to define technical requirements and deliver aligned network solutions
• Perform network modeling, traffic analysis, and long-term capacity planning to support evolving business growth and performance benchmarks
• Produce and maintain comprehensive technical documentation, including High-Level Designs (HLD), Low-Level Designs (LLD), architecture diagrams, and operational procedures
• Liaise with external vendors and third-party service providers for equipment procurement while managing concurrent multi-scale IT infrastructure projects
• Serve as a senior escalation point for network operations teams to resolve complex technical issues and uphold ITIL framework standards

About you

• Bachelor's degree in Computer Science, Information Systems, or a related technical discipline
• 10+ years of hands-on experience in enterprise network design, implementation, and administration, ideally within a regulated corporate or financial environment
• Deep knowledge of LAN/MAN/WAN, SD-WAN, Micro-Segmentation Firewalls, Wireless LAN, VPN, IPS, WAF, and Server Load Balancing (SLB)
• Hands-on proficiency with Cisco ACI design and deployment
• Practical expertise in cloud network architectures across AWS and Azure environments
• Experience with network management, performance monitoring, and automation tools
• Strong command of English and Chinese (Mandarin proficiency is a plus)
• Preferred: CCIE, AWS Certified Advanced Networking, or Azure Network Engineer certifications