• Enterprise routing/switching: Catalyst & Nexus.
• Cisco Enterprise routers and switches (ISR/ASR)
• Fortinet stack (Gate/Mgr/Analyzer) – banking prod.

Job Description

• Provide L3 operational ownership for network security services across data center and enterprise environments

• Lead resolution of complex, high-impact incidents, acting as the senior technical escalation point

• Drive thorough root cause analysis and implement preventive actions

• Support major incident response, including vendor escalation and technical coordination

• Ensure services meet strict availability, resilience, and security standards

• Execute and review high-risk changes with proper impact analysis and rollback planning

• Identify operational, security, and configuration risks and drive remediation

• Support internal audits, risk assessments, and regulatory reviews with technical evidence

• Act as a senior escalation point for Cisco Data Center technologies (including ACI fabric design, policy modelling, fault isolation)

• Work with Cisco Catalyst 29xx/3xxx/4900/6500/4500-X L2/L3 switch platforms

• Handle Cisco Data Center switching (EVPN/VXLAN, automation, HA architectures)

• Manage advanced routing and switching (BGP, OSPF, VRFs, segmentation, redundancy patterns)

• Troubleshoot complex traffic flows across multi-tier, segmented environments

• Provide operational support for Cisco ISE (NAC, authentication, authorization, policy enforcement)

• Lead operational support for Fortinet stack: FortiGate firewalls (policy design, HA, VPN, advanced inspection), FortiManager (centralized policy governance and compliance enforcement), and FortiAnalyzer (logging, alerting, regulatory reporting, forensic investigations)

• Provide APAC business hours support onsite 

• Participate in L3 on-call rotation, including nights and weekends

• Support planned maintenance and major incident response

Job Requirements

• Bachelor’s degree in Engineering, Computer Science, or equivalent experience (preferred)

• 8–10 years of overall experience

• 5+ years of strong hands-on experience in L3 network security operations

• Strong hands-on experience with Cisco Data Center technologies (including ACI)

• Proven ability to troubleshoot complex, multi-domain issues under pressure in customer-facing environments

• Proven support experience in banking, financial services, or regulated environments

• Good knowledge of ITIL Incident, Problem, and Change Management

• Excellent troubleshooting skills in high-availability, mission-critical systems

• Clear communication with engineers, vendors, and stakeholders

• Advanced enterprise routing and switching (Catalyst and Nexus Switching)

• Cisco Enterprise routers and switches (ISR and ASR)

• FortiGate, FortiManager, FortiAnalyzer in production banking environments

• H3C switches and Arista switches (nice to have)

• ITIL Foundation or higher (preferred)

• Cisco and/or Fortinet certifications (preferred)

• Good command of both spoken and written English and Chinese