Network Security Reliability Engineer- Level 2

Credit Agricole Corporate And Investment Bank; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Credit Agricole Corporate and Investment Bank is seeking an experienced Network Security Reliability Engineer – Level 2 to join our Infrastructure Network and Security Operations team. You will manage multi-vendor devices (Cisco, Arista, Fortinet, F5, Infoblox, Skyhigh, Ivanti, Check Point, Trend Micro) and ensure reliability, security, and performance across large environments.

The role emphasizes incident response, performance tuning, and continuous improvement of security controls, with 4–8

Qualifications

• 4–8 years of hands-on experience in enterprise network and security solutions.
• Experience with multi-vendor infrastructure including Cisco, Arista, Fortinet, F5, Infoblox, Skyhigh, Ivanti, Check Point and Trend Micro.
• Strong troubleshooting and incident response skills in large-scale environments.

Responsibilities

• Install, configure, and maintain multi-vendor network and security devices across data centers, cloud environments, and remote sites.
• Perform advanced troubleshooting and root-cause analysis for complex network and security issues.
• Implement secure network architecture, segmentation, and access control best practices.
• Conduct regular security posture assessments and recommend improvements.
• Maintain high availability, redundancy, and resilience across all network and security platforms.

Tools

Cisco

Arista

Fortinet

F5 BIG-IP

Infoblox

Skyhigh

Ivanti

Check Point

Trend Micro

BGP/OSPF

Security policy

Job description

Department

The Information Technology Services (ITS) department is responsible for ensuring the availability, stability, security, and performance of our bank\'s IT infrastructure, applications, and enduser systems. Operating 24/7, we are dedicated to guaranteeing worldwide production stability and availability. We play a leading role in shaping the IT strategy for the APAC and Middle East regions, while also providing expert technical support to other regions. Our services extend to international sites, where we offer Level 4 support, including support to the Americas.ss

Role Overview

We are seeking an experienced Network Security Reliability Engineer – Level 2 to join our infrastructure Network and security Operations team. The ideal candidate will have 4–8 years of hands‑on experience in installing, configuring, optimizing, and troubleshooting enterprise‑grade network and security solutions. The position requires strong technical proficiency across multiple vendor platforms, including Cisco, Arista, Fortinet, F5, Infoblox, Skyhigh, Ivanti, Check Point, and Trend Micro.

The candidate will be responsible for ensuring the reliability, integrity, and security of network and security infrastructure across large enterprise environments, while also supporting incident response, performance tuning, and ongoing service improvements.

Key Responsibilities

Network & Security Infrastructure Management

• Install, configure, and maintain multi‑vendor network and security devices across data centers, cloud environments, and remote sites.


• Perform advanced troubleshooting and root‑cause analysis for complex network and security issues.


• Implement secure network architecture, segmentation, and access control best practices.


• Conduct regular security posture assessments and recommend improvements.


• Maintain high availability, redundancy, and resilience across all network and security platforms.

Vendor‑Specific Responsibilities

Cisco

• Configure and manage Cisco routers, switches, WLC, ISE, ACI solutions.


• Troubleshoot routing protocols (BGP, OSPF, EIGRP) and Layer 2 technologies.


• Manage Cisco ISE policies and NAC enforcement.


• Vendor technical support escalations as needed.


• ACI infrastructure support.


• ISE NAC , TACACS , profiling and posture support..

Arista

• Deploy and manage Arista switches in data center.


• Configure EOS, VXLAN/EVPN fabrics, and advanced automation features.


• Diagnose connectivity, performance, and fabric‑related issues.


• Vendor technical support escalations as needed.

Fortinet

• Install and configure FortiGate firewalls, VPNs, IPS and security profiles.


• Manage FortiAnalyzer/FortiManager for centralized policy and log management.


• Troubleshoot Firewall, IPS, and application control issues.


• Vendor technical support escalations as needed.

F5

• Configure and manage F5 BIG‑IP LTM, ASM, APM modules.


• Develop and troubleshoot iRules/iApps.


• Perform load balancing, traffic management, and WAF policy tuning.


• Vendor technical support escalations as needed.

Infoblox

• Administer Infoblox DDI (DNS, DHCP, IPAM).


• Ensure high availability, DNS security (DNSSEC), and IP address management accuracy.


• Troubleshoot DNS/DHCP issues and integrate with other security platforms.


• Vendor technical support escalations as needed.

Skyhigh (McAfee/Skyhigh Security)

• Manage security gateways.


• Monitor and optimize security posture.


• Troubleshoot secure web gateway and CASB‑related issues.


• Vendor technical support escalations as needed.

Ivanti

• Deploy and maintain Ivanti Secure connect solutions.


• Configure security policies, controls, and compliance reporting.


• Troubleshoot endpoint security, patch failures, and agent‑related problems.


• Vendor technical support escalations as needed.

Check Point

• Install and configure Check Point firewalls, SmartConsole, and security blades.


• Maintain VPNs, IPS, threat prevention, and rule optimization.


• Perform advanced troubleshooting using logs, packet captures, and fw monitor tools.


• Vendor technical support escalations as needed.

Trend Micro

• Configure and maintain Trend Micro security solutions.


• Manage malware protection, behavioral analysis, and threat detection platforms.


• Troubleshoot agent connectivity, updates, and threat events.


• Vendor technical support escalations as needed.