Senior IT Infrastructure Engineer

About the role

A leading Infrastructure & Engineering organization is seeking a Senior IT Infrastructure Engineer to support and strengthen its IT infrastructure, system administration, network and day-to-day technology operations. The role combines Microsoft 365 administration, network infrastructure and incident handling.

Key responsibilities

• Administer the Microsoft 365 environment (Microsoft Entra ID, Exchange Online, Teams, SharePoint), managing user accounts, licenses, permissions, MFA, privileged access and security alerts.
• Support the full employee account lifecycle from onboarding to offboarding and keep system and operational documentation accurate.
• Administer and monitor firewalls, switches, Wi-Fi, VPN connectivity and wider network infrastructure, coordinating with vendors during incidents.
• Monitor network availability and performance, review security and endpoint protection alerts, track patch compliance and device health, and handle initial investigation and escalation of security incidents.
• Maintain IT asset inventories and network diagrams, manage IT support tickets and vendor cases, and support infrastructure projects and continuous improvements.

Required profile

• Diploma or equivalent qualification in Information Technology or a related discipline.
• At least 5 years of hands-on experience in IT infrastructure and end-user support.
• Strong troubleshooting and problem-solving skills, able to investigate issues systematically, find root causes and propose practical recommendations.

Required skills

• Practical experience administering Microsoft 365, including Microsoft Entra ID and identity and access management.
• Sound networking knowledge and firewall experience, including VPN and SSO.
• Exposure to endpoint management and security.