SSO Engineer / DNS Engineer - Inside IR35 Hybrid working: 3 days per week in the office. Role Overview The role will lead planning and coordination activities for large scale SSO and external DNS changes across a complex application estate as part of a merger programme. The role focuses on vendor engagement, dependency management, and Day 1 readiness. Required Technical Skills Enterprise Single Sign On (SSO) platforms SSO standards including SAML 2.0 and OpenID Connect (OIDC) External DNS and domain management Understanding of certificates and PKI dependencies for authentication Integration with vendor hosted and third party applications Required Experience Experience planning or managing SSO changes across a large application estate Proven experience engaging with third party vendors for SSO and domain changes Experience coordinating DNS changes to support identity and application transitions Experience managing dependencies between SSO, DNS, certificates, and identi...