IT Infrastructure Engineer

📋 Description Lead the administration and evolution of Microsoft Active Directory in a complex enterprise environment. Own Exchange and Exchange Hybrid (on-prem and Online) with reliability and security. Design, operate, and maintain PKI, including certificate lifecycle management. Administer and develop Microsoft 365 / Entra ID identity services. Implement and support ADFS / SSO and federation for internal and external apps. Ensure secure access, authentication, and authorization across platforms. 🎯 Requirements Strong hands-on expertise in Active Directory (architecture, trusts, GPO). Proven Exchange (on-prem) and Exchange Hybrid experience. Solid PKI experience (Root/Issuing CAs, templates, CRL/OCSP). Production experience with Microsoft 365 / Entra ID in hybrid environments. Practical knowledge of ADFS / SSO, federation, and claims-based authentication. Strong Windows Server background in enterprise environments. 🎁 Benefits Office or remote — it's up to you. Remote onboarding. Performance bonuses for everyone. Health and life insurance. Wellbeing program and corporate psychologist. Reimbursement of expenses for Solstice Analytics mobile communication.