Infrastructure Security Engineer

Company: La Fosse
Apply for the Infrastructure Security Engineer
Location: Sheffield
Job Description:

We’re looking for an Infrastructure Security Engineer with strong experience in Identity & Access Management, particularly Microsoft Entra ID (Azure AD), ideally within Azure and Microsoft 365 environments. This is a hands‑on engineering role supporting the delivery of secure identity, access and governance controls as part of a large transformation programme.

You’ll work closely with security leads and cloud platform teams to design, configure and maintain Entra ID‑based identity and access controls across Azure subscriptions, Microsoft 365 and the wider Power Platform.

What you’ll be doing

  • Design, implement and manage Identity & Access Management solutions across Microsoft Entra ID (Azure AD)
  • Manage user, group and service principal lifecycle processes
  • Configure and maintain Role‑Based Access Control (RBAC), Privileged Identity Management (PIM) and Conditional Access policies
  • Integrate on‑prem Active Directory with cloud identity services
  • Administer and secure identity and access across Microsoft 365 workloads, including Exchange Online, OneDrive for Business and Microsoft Teams
  • Define and enforce Power Platform governance, including environment strategy, role‑based access, Conditional Access and identity controls

Hybrid – Yorkshire or London

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Posted: May 18th, 2026