The Nuclear Energy Agency - IT Systems Architect

Main Responsibilities 

Architecture & Design 

• Define and maintain the target-state architecture for a hybrid Microsoft ecosystem spanning on premises datacenters and Azure. 

• Oversee and define solution designs for identity, access, storage, and compute. 

• Develop reference architectures and standards for Windows Server, Microsoft 365, and Azure services and produce high quality architecture artefacts (design diagrams, runbooks). 

Hybrid Infrastructure (On Prem & Cloud) 

• Deploy and optimize Hyper V–based virtualization; manage clusters, host configuration, VM templates, and performance. 

• Administer VMware virtual machines and optimize Microsoft licensing. 

• Plan and execute server lifecycle management (capacity planning, patching, image baselines). 

• Manage Azure subscriptions, resource groups, policy, RBAC, and tagging. 

• Define and apply backup and recovery procedures. 

Microsoft 365 & Identity 

• Provide end-to-end administration and operational oversight of Microsoft 365 (Exchange Online, SharePoint Online, OneDrive, Teams, Intune/Endpoint Management, Purview). 

• Manage Entra ID, conditional access, identity protection, MFA, SSO, privileged identity management (PIM). 

• Establish device compliance and configuration policies (Intune/Autopilot), application protection, and update rings. 

IT Operations & Support 

• Provide Tier 2 support for incidents and problems; guide root cause analysis and permanent fixes. 

• Mentor and enable the IT Support team with runbooks, knowledge articles, and training to improve first call resolution. 

• Participate in calls for tender, and change advisory processes. 

• Maintain comprehensive architecture documentation, inventories, topology maps, and SOPs. 

• Establish governance for resource naming, tagging, cost allocation, backup, and data retention. 

Other 

• Carry out other related duties assigned by the NEA IT Systems Manager.