IT Infrastructure & Security Specialist

About the role

The IT Infrastructure & Security Specialist is responsible for supporting, securing, and maintaining the Group’s IT infrastructure, networks, cloud services, and cybersecurity applications. The role works closely with the IT Infrastructure & Technology Manager, internal teams, SOC/CISO functions, and external service providers to ensure reliable operations and effective security controls.

Key responsibilities

• Design, configure, and install network devices such as routers, switches, firewalls, and VPNs for LAN and WAN environments.
• Monitor system performance, conduct capacity planning, and perform regular maintenance, upgrades, and patch management.
• Provide Tier 2/3 support for network, infrastructure, and voice systems, including IP telephony and AV equipment.
• Implement and maintain network security measures, monitor security alerts, and coordinate incident response with SOC and CISO teams.
• Manage firewalls, switches, routers, and security policies; conduct vulnerability assessments and remediation.
• Maintain documentation, vendor relationships, and support cloud security controls (MFA, VPN, privileged access, EDR).

Required profile

• Bachelor’s degree in Computer Science, Information Technology or a related field.
• Minimum 5 years of experience supporting infrastructure, including switches, firewalls, and cloud security.
• Strong knowledge of LAN/WAN, TCP/IP, DNS, DHCP, VLANs, routing, switching, wireless, servers, storage, virtualization, high‑availability environments.
• Experience with security monitoring, log review, incident response support, vulnerability remediation, patch management, and infrastructure hardening.

Required skills

• LAN/WAN, TCP/IP, DNS, DHCP, VLANs, routing, switching, wireless networks
• Firewalls, VPNs, high‑availability design
• Active Directory, Microsoft 365, Azure, MFA, privileged access management
• Endpoint protection, email security, secure remote access, cloud security controls
• Security monitoring tools (e.g., ManageEngine, SolarWinds, Nagios)
• PowerShell, Python scripting
• Avaya or other enterprise voice systems, SIP trunking, IP telephony