Senior Azure Infrastructure Engineer

Our client is seeking a highly skilled and self-directed Senior Azure Infrastructure Engineer to join their team. The ideal candidate will have significant experience managing complex migrations, strong architectural insight into both cloud and on-premises technologies, and the ability to independently deliver technically sound, business-aligned solutions. Key Responsibilities: Lead the end-to-end splitting of an existing Microsoft 365 tenant into two distinct, operationally independent environments.Design and execute a comprehensive migration and segmentation strategy, ensuring minimal disruption to business operations. Assess and mitigate implications on licensing, identity management, application integrations, mail flow, security, and user access. Maintain regulatory and internal compliance throughout the split process, particularly ISO 27001 and GDPR alignment. Collaborate with senior leadership to provide technical direction, project timelines, and risk assessments. Manage and optimise Microsoft 365 services including SharePoint, OneDrive, Teams, and Exchange Online. Maintain and enforce conditional access policies, Zero Trust architectures, and multi-factor authentication (MFA) across Azure AD. Handle daily support tasks, service optimisation, and incident resolution across Azure and M365 workloads. Lead identity and access governance using PIM, RBAC, and Microsoft Entra. Implement, support, and refine security configurations across both cloud and on-premises environments. Design and support enterprise-grade networking including routing, switching, VLANs, SDWAN, and Azure VNet configurations. Manage and configure firewalls (Azure Firewall, FortiGate, or equivalent) with strong hands on troubleshooting capabilities. Lead projects involving Active Directory, DNS, DHCP, and Group Policy, ensuring seamless synchronisation with Azure AD. Support hybrid environments and infrastructure where legacy systems must be integrated securely and efficiently into the cloud ecosystem. Key Skills & Experience: Minimum 10 years of experience in enterprise on-premises IT infrastructure (Active Directory, firewalls, routing/switching). Minimum 5 years of Azure/M365 hands-on experience, particularly in tenant-level admin. Expertise in Azure AD, Conditional Access, Identity Protection, PIM, and M365 security. Strong scripting and automation skills (e.g. PowerShell, Terraform, ARM templates). Deep understanding of Azure networking, Defender for Cloud, Sentinel, and Microsoft 365 Defender. Experience with compliance and security frameworks such as ISO 27001 and GDPR. Microsoft Certifications: AZ-305 (Solutions Architect), AZ-500 (Security), MS-100/101 (M365 Identity & Services). Experience working in regulated industries (legal, financial) with a strong understanding of compliance mandates. Solution-oriented and able to assess complex challenges and present viable strategies quickly. Capable of leading initiatives with minimal oversight.
If you have the required skills please apply online at searchandselect.com quoting reference number: 15900.