Network Security Reliability Engineer- Level 2

Description du poste

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.

• Critères de candidature

  Niveau d'étude minimum

  Bac + 3 / L3

  Formation / Spécialisation

  bachelor and above in relevant discipline

  Additional Responsibilities Participate in on-call rotation, incident response, and escalations.

  Document configurations, change requests, runbooks, and network diagrams.

  Work closely with Security Operations, CSIRT and Infrastructure teams.

  Support audits, compliance activities, and security governance initiatives.

  Participate in project implementations.

  Required Skills & Qualifications 4–8 years of professional experience in network and security adminstrator roles.

  Strong understanding of TCP/IP, routing/switching, VPNs, and network security concepts.

  Proven experience with at least 4–6 of the listed vendor technologies, with working knowledge of the others.

  Hands-on expertise with Routing, switching, SDN, firewalls, load balancers, IDS/IPS, proxy, NAC, WLC systems.

  Experience with automation tools (Ansible, Python, REST APIs) is a plus.

  Strong analytical, troubleshooting, and incident-management abilities.

  Excellent communication, documentation, and stakeholder-management skills.

  **Preferred Certifications (Any of the following):**Cisco CCNP

  Arista ACE

  Fortinet NSE 5/6/7

  F5 Certified Administrator/Engineer

  Check Point CCSA/CCSE

  Infoblox Core DDI

  Trend Micro Certified Professional

  Security certifications: CISSP, CISM, CEH (preferred)

  Niveau d'expérience minimum

  3 - 5 ans

• Entreprise Crédit Agricole CIB

  Rejoignez les équipes de Crédit Agricole CIB, la banque de financement et d'investissement du groupe Crédit Agricole, 10e groupe bancaire mondial en taille de bilan*.

  Nous accompagnons les grandes entreprises et institutions financières dans leur développement et le financement de leurs projets. Pionniers dans la finance responsable, l'engagement social et environnemental sont au cœur de nos activités.

  Intégrer nos équipes c'est contribuer au développement d'une économie durable.

  Vous évoluerez dans un environnement multiculturel, à la fois dynamique et stimulant, dans lequel vous serez encouragé à innover et partager vos idées.

  Nous sommes une entreprise qui accompagne ses collaborateurs tout au long de leur parcours. Vous pourrez y développer vos compétences et accéder aux larges opportunités de carrière qu'offrent la diversité de nos métiers et nos 30 implantations internationales.

  Notre culture repose sur la force du collectif et l'esprit d'ouverture, où chacun est responsabilisé et valorisé.

  En agissant chaque jour dans l'intérêt de la société, Crédit Agricole CIB s'inscrit dans les valeurs du groupe qui est engagé en faveur des diversités et de l'inclusion et qui place l'humain au cœur de toutes ses transformations. Tous nos postes sont ouverts aux personnes en situation de handicap.

  Vous souhaitez prendre part à notre mission ? Rejoignez nos équipes !

  • The Banker, Juillet 2025