Systems Engineer - Enterprise Infrastructure Services Administrator

Black & Grey HR is recruiting for a leading technology solutions provider in Doha, Qatar. Our client is seeking an experienced Systems Engineer - Enterprise Infrastructure Services Administrator who will be responsible for managing enterprise identity, directory, and access management services across hybrid and multi-cloud environments, ensuring secure, scalable, and compliant IAM operations across Microsoft 365, Azure, Active Directory, and enterprise collaboration platforms Key Responsibilities Identity & Directory Services - Manage Microsoft 365 users, groups, roles, and licenses. - Administer Azure Entra ID (Azure AD), MFA, Conditional Access, and Identity Protection. - Maintain on-premises Active Directory (AD DS), GPOs, domains, and replication. - Support Azure AD DS and hybrid identity environments. - Manage Google Directory Services in hybrid/federated setups. - Design and support hybrid identity solutions. Federation & Access Management - Configure AD FS, SAML, OAuth2, OpenID Connect, and federation services. - Implement and manage Single Sign-On (SSO) solutions. - Manage RBAC, privileged access, and least-privilege models. - Support Privileged Identity Management (PIM) and JIT access. Collaboration & Governance - Manage Microsoft 365 licensing and utilization reporting. - Administer access for Teams, SharePoint, OneDrive, and Copilot. - Control guest access and cross-tenant collaboration. - Enforce security and compliance policies across collaboration tools. - Manage enterprise email signature solutions. PKI, DNS & Infrastructure Services - Administer Active Directory Certificate Services (AD CS). - Manage SSL/TLS certificates, renewals, and revocations. - Manage internal/external DNS environments and domain services. - Coordinate domain registrations and DNS configurations. - Support cloud and hybrid infrastructure connectivity. Application Integration & Security - Integrate enterprise applications with AD and Entra ID. - Support LDAP, SAML, OAuth, and directory-based integrations. - Collaborate with security and application teams on IAM integrations. - Support audits, compliance reviews, and risk assessments. - Maintain technical documentation and SOPs. Requirements Experience - Strong experience with Microsoft 365, Azure Entra ID, and Active Directory. - Hands-on experience with hybrid identity and directory synchronization. - Experience with SSO, federation, DNS, and PKI services. - Knowledge of enterprise IAM integrations and security best practices. Education & Certifications - Bachelor’s degree in IT, Computer Science, or related field. - Microsoft certifications preferred: - Azure Administrator Associate - Identity & Access Administrator Associate - Microsoft 365 Enterprise Administrator Technical Skills - Azure Entra ID (Azure AD) & Microsoft 365 - Active Directory (AD DS, AD CS, AD FS) - Hybrid Identity & Directory Synchronization - DNS & Domain Management - PKI & Certificate Lifecycle Management - SSO, LDAP, SAML, OAuth & Federation Benefits - Competitive Salary + Benefits Package