Senior Enterprise Consultant – Microsoft Active Directory & Exchange Infrastructure (Onsite)
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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
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Overview
This role is based in Riyadh, and applicants must already be residing in the Kingdom of Saudi Arabia (KSA).
The role will be a 12-month fixed-term contract.
Senior Enterprise Consultant
leads architecture, modernization, and deployment for large-scale Microsoft environments.
You will be responsible for the architecture, design, implementation, migration, upgrade, and optimization of enterprise Microsoft identity and messaging platforms including hybrid setup. ensuring highly available, secure, and resilient environments while minimizing business disruption.
The consultant will work closely with customer technical teams, project managers, Microsoft, and third-party vendors to deliver successful infrastructure transformation projects.
This role requires deep expertise in enterprise Active Directory modernization, Exchange Server upgrades, hybrid identity, security hardening, and the migration of legacy Microsoft infrastructure while ensuring business continuity and adherence to Microsoft best practices.
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 Multifactor Authentication (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: 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.)
+ Advanced PowerShell automation for Active Directory, Exchange Server, Windows Server, and migration activities.
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.
Our people are at the core of everything we do.
We enable collaboration across borders, continuous learning, and opportunities to grow in a fast-evolving technology landscape.
Whether your focus is on technology, customer success, or business operations, your ideas matter, and your contributions make a difference.
Join a global team where you can build your skills, work with leading technologies, and make a real impact for our customers.
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