Infrastructure Engineer

3rd-Line-Infrastructure-&-Network-Engineer

About-the-Role

An-experienced-and-highly-capable-3rd-Line-Infrastructure-&-Network-Engineer-is-sought-to-join-a-growing-IT-team,-providing-expert-technical-support-and-infrastructure-leadership-across-a-complex-enterprise-environment.

The-successful-candidate-will-possess-outstanding-hands-on-experience-across-the-Microsoft-technology-stack,-combined-with-strong-networking-expertise-and-a-solid-understanding-of-SharePoint-administration-and-support.-This-is-a-senior-technical-role-requiring-excellent-troubleshooting-skills,-a-proactive-mindset,-and-the-ability-to-take-ownership-of-critical-infrastructure-services.

Key-Responsibilities

Provide-3rd-line-support-for-business-critical-infrastructure,-systems,-and-network-services.

Design,-implement,-maintain,-and-optimise-Microsoft-based-environments.

Administer-and-support-Microsoft-365-services,-including-Exchange-Online,-Entra-ID-(Azure-AD),-Teams,-Intune,-and-SharePoint.

Manage-and-support-Windows-Server-environments,-Active-Directory,-Group-Policy,-DNS,-DHCP,-and-virtualisation-platforms.

Monitor,-troubleshoot,-and-resolve-complex-network-issues-across-LAN,-WAN,-Wi-Fi,-VPN,-and-firewall-technologies.

Lead-technical-investigations,-root-cause-analysis,-and-problem-management-activities.

Support-infrastructure-upgrades,-migrations,-and-transformation-projects.

Maintain-security-best-practices-and-support-compliance-requirements.

Produce-and-maintain-technical-documentation,-procedures,-and-knowledge-articles.

Collaborate-with-internal-teams,-third-party-vendors,-and-stakeholders-to-deliver-high-quality-IT-services.

Essential-Skills-&-Experience

Proven-experience-in-a-3rd-Line-Infrastructure-Engineer,-Senior-Infrastructure-Engineer,-or-similar-role.

Strong-hands-on-expertise-across-the-Microsoft-ecosystem,-including:

Microsoft-365

Azure-/-Entra-ID

Exchange-Online

Intune

Windows-Server

Active-Directory

Group-Policy

PowerShell

Strong-networking-knowledge-and-troubleshooting-experience,-including:

TCP/IP

Routing-and-Switching

VLANs

Firewalls

VPNs

Network-Security

Wireless-Networking

Experience-supporting-and-administering-SharePoint-Online.

Experience-with-virtualisation-technologies-such-as-VMware-or-Hyper-V.

Strong-understanding-of-cybersecurity-principles-and-infrastructure-best-practices.

Excellent-problem-solving-and-analytical-skills.

Ability-to-work-independently-and-manage-competing-priorities.

Desirable-Skills

Microsoft-certifications-(Azure,-Microsoft-365,-Security,-or-Infrastructure-related).

Experience-with-cloud-migration-projects.

Experience-with-backup-and-disaster-recovery-solutions.

Knowledge-of-modern-security-frameworks-and-monitoring-tools.

Exposure-to-automation-and-scripting-technologies.