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 platformsKey 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.

_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 & FederationBenefits- Competitive Salary + Benefits Package