Senior Enterprise Consultant – Microsoft Active Directory & Exchange Infrastructure (Onsite)
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Key skills for this role
About the Role
SoftwareOne seeks a Senior Enterprise Consultant to lead architecture, modernization, and deployment for large-scale Microsoft environments in Riyadh. This 12-month contract role involves designing and implementing Active Directory and Exchange Hybrid solutions for 100,000+ user ecosystems.
Key Skills for This Role
Responsibilities
- Architect, design, migration, upgrade and lead end to end Active Directory and Exchange Hybrid modernization roadmaps for 100,000+ user ecosystems
- Design domain consolidation, forest restructuring, and legacy AD cleanup
- Plan and execute coexistence and migration strategies with minimal downtime
- Deploy and manage modern Exchange architectures, including multi forest migrations and hybrid configuration
- Architect Entra ID / Azure AD Connect integrations, SSO frameworks, and modern authentication methods including MFA and Conditional Access
- Oversee core infrastructure domains (FSMO roles, DNS, DHCP, Sites & Services) and secure PKI lifecycles
- Perform health assessments and remediation activities for Active Directory and Exchange
- Troubleshoot complex replication, authentication, DNS, Kerberos, LDAP, Exchange transport, and mailbox issues
- Produce architecture documents, implementation guides, migration runbooks, rollback plans, and operational documentation
- Conduct requirements workshops, define target state architectures, create LLDs, and mentor junior consultants
Requirements
- Experience leading enterprise Active Directory and Exchange modernization projects
- Hands on experience designing and implementing enterprise Microsoft infrastructure
- Proven experience supporting environments with 100,000+ users, large AD, large Exchange, multiple datacenters, hybrid setup / M365 online services
- Experience as a lead or senior technical consultant
- Advanced working knowledge of Windows Server (2019/2022/2025), AD DS, ADFS, and Exchange Server SE
- Expertise in identity protocols (SAML, OAuth 2.0, OpenID Connect) and integrating SaaS/PaaS platforms
- Experience integrating Microsoft infrastructure with enterprise platforms (backup, F5, Infoblox, Sailpoint, etc.)
- Advanced PowerShell automation for AD, Exchange, Windows Server, and migration activities
Full Job Posting
Role Overview
- This role is based in Riyadh, and applicants must already be residing in KSA.
- The role will be a 12 month fixed term contract.
- The Senior Enterprise Consultant leads architecture, modernization, and deployment for large scale Microsoft environments.
Core Responsibilities
- Architecture & Strategy: Architect, design, migration, upgrade and lead end to end Active Directory and Exchange Hybrid modernization roadmaps for 100,000+ user ecosystems.
- AD Modernization: Design domain consolidation, forest restructuring, and legacy AD cleanup. Lead directory synchronization configurations and transition legacy AD models to cloud based identity.
- Plan and execute coexistence and migration strategies with minimal downtime.
- Strong proficiency in Microsoft technologies, security best practices, & Azure AD (Microsoft Entra ID).
- Exchange Transformation: Deploy and manage modern Exchange architectures, including multi forest migrations, hybrid configuration setups, and coexistence architectures across on premises and Exchange Online (EXO).
- Hybrid Identity: Architect Entra ID / Azure AD Connect integrations, Single Sign On (SSO) frameworks, and modern authentication methods including MFA and Conditional Access.
- Infrastructure Resilience: Oversee core infrastructure domains (FSMO roles, DNS, DHCP, Sites & Services) and secure Public Key Infrastructure (PKI) lifecycles.
- Perform health assessments and remediation activities for Active Directory and Exchange.
- Troubleshoot complex replication, authentication, DNS, Kerberos, LDAP, Exchange transport, and mailbox issues.
- Produce architecture documents, implementation guides, migration runbooks, rollback plans, and operational documentation.
- Work with customer security and infrastructure teams to ensure compliance with Microsoft best practices.
- Consultative Leadership: Conduct requirements workshops, define target state architectures, create Low Level Designs (LLDs), and mentor junior consultants.
Job Requirements
- Experience leading enterprise Active Directory and Exchange modernization projects.
- Hands on experience designing and implementing enterprise Microsoft infrastructure.
- Proven experience supporting environments with 100,000+ users, large Active Directory, large Exchange organizations, multiple datacenters, Hybrid Setup / M365 online services, high availability and disaster recovery architectures.
- Experience as a lead or senior technical consultant.
- Large Scale Deployments: Proven track record of managing and migrating hybrid infrastructures for enterprise environments spanning 100,000+ users.
- Deep Product Expertise: Advanced working knowledge of Windows Server (2019/2022/2025), Active Directory Domain Services (AD DS), Active Directory Federation Services (ADFS), and Exchange Server SE.
- Modern Authentication: Expertise in identity protocols (SAML, OAuth 2.0, OpenID Connect) and integrating SaaS/PaaS platforms into enterprise directories.
- Consultancy Standards: Ability to act as a trusted Subject Matter Expert (SME), balancing technology deliverables with business impact.
- Experience integrating Microsoft infrastructure with enterprise platforms including but not limited to Enterprise backup solution, F5, Infoblox DNS, Sailpoint, Secure mail, DLP..etc.
Preferred Certifications
- Microsoft Certified: Windows Server Hybrid Administrator Associate
- Microsoft Certified: Identity and Access Administrator Associate
- Microsoft Certified: Azure Administrator Associate
- Microsoft Certified: Cybersecurity Architect Expert (preferred)
- Microsoft Exchange certifications (legacy certifications are acceptable if accompanied by current Exchange SE experience)
Technical Competencies
- Enterprise infrastructure architecture
- Microsoft best practices
- Infrastructure modernization
- Operating System hardening
- Security hardening
- Performance optimization
- Capacity planning
- Root cause analysis
- Risk assessment
- Change management
- Technical leadership
- Documentation (HLD, LLD, As built documentation, Migration Runbooks, Test Plan..etc.)
Company Description
- SoftwareOne is a global provider of software and cloud solutions. With a presence in over 70 countries and more than 12,000 professionals, we help organizations optimize software investments, modernize applications, and unlock the value of cloud, data, and AI.
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