Our client in the public sector is seeking a contract based

Senior Microsoft Exchange Consultant / Architect to design, implement, and support both Microsoft Exchange Server Subscription Edition (on-premises) and Exchange Online, with particular expertise in Exchange Hybrid architecture. Duration: 6 months to start Responsibilities

Provide senior-level architecture and technical expertise for

Exchange Server Subscription Edition (on-premises), Exchange Online, and Exchange Hybrid environments. Design, implement, optimize, and modernize enterprise Exchange and messaging solutions. Architect solutions for high availability, disaster recovery, resiliency, performance, and scalability . Analyze and resolve complex mail flow, SMTP, transport, integration, authentication, and Exchange infrastructure issues . Provide architectural guidance across

Active Directory, Entra ID, Entra Connect, and hybrid identity . Develop

PowerShell automation for Exchange administration, reporting, and operational efficiencies. Collaborate with infrastructure, security, networking, and identity teams to ensure alignment with Microsoft and enterprise standards. Develop architecture documentation, technical designs,



implementation plans, and roadmaps. Provide technical leadership, mentoring, and knowledge transfer to internal teams. Requirements

Extensive senior-level experience designing and supporting

Microsoft Exchange in large, complex enterprise environments . Deep hands-on experience with

Exchange Server Subscription Edition (on-premises), Exchange Online, and Exchange Hybrid . Strong Exchange architecture expertise including high availability, disaster recovery, mail flow, SMTP, security, performance, and capacity planning . Strong experience with

Active Directory, Microsoft Entra ID, Entra Connect, and hybrid identity . Strong

PowerShell scripting and automation skills. Experience with

Microsoft 365, DNS, certificates, load balancing, gateways, and Exchange monitoring . Robust architecture, troubleshooting, documentation, and technical leadership skills. Familiarity with ITSM/change-management tools such as

ServiceNow . Must be eligible to obtain the required House of Commons security clearance and able to work onsite in Ottawa as required.

📌 Senior Microsoft Exchange Consultant (Ahuntsic)
🏢 Resonaite
📍 Ahuntsic