Infrastructure Engineer (Security & PKI) Location: Corsham Security Clearance: DV Cleared or Eligible Overview We are looking for an Infrastructure Engineer to support and maintain secure enterprise infrastructure and Public Key Infrastructure (PKI) services within a highly secure environment. This role combines infrastructure operations, security engineering, and identity management, supporting critical systems across Windows Server, Active Directory, Azure, Intune, and PKI platforms. You will be responsible for incident resolution, service delivery, platform maintenance, and ensuring the ongoing security and availability of key services. Key Responsibilities Infrastructure Support & Operations Provide 2nd and 3rd line support across infrastructure and security platforms. Manage incidents, service requests, problems, and change activities. Administer Windows Server and Active Directory environments. Support Azure AD administration and Single Sign-On (SSO) integrations. Configure and m...