Senior Microsoft 365 & Azure Infrastructure Support Specialist

OXARO Inc.; Ottawa; Hybrid; CAD 90,000 - 130,000; Full time

Job summary

OXARO Inc. in Ottawa is seeking an experienced IT Infrastructure professional to administer and support Microsoft 365, Azure, Entra ID, Active Directory, and Exchange in a hybrid environment.

You will manage integrations, identity synchronization, authentication, and privileged access while monitoring service health and security. The role requires hands-on experience across on-prem and cloud components, strong incident resolution skills, and a track record of implementing change through formal

Qualifications

• 5+ years of experience administering and supporting enterprise Microsoft 365 and Microsoft Exchange environments with a minimum size of 40,000 users, including Exchange Online and hybrid configurations.
• 3+ years of experience configuring, administering, maintaining, and troubleshooting Microsoft Azure infrastructure services, including VMs, virtual networks, and RBAC.
• 5+ years of experience administering Microsoft Entra ID and on-premises Active Directory in a hybrid environment, including synchronization and CA.
• 3+ years of scripting to automate administration, configuration, monitoring, or reporting of MS 365/Azure/Entra/AD/Exchange.
• Experience providing operational support for at least two enterprise Microsoft environments, including change management and documentation.
• Active Secret security clearance required.

Responsibilities

• Configure, administer, maintain, and support Microsoft 365, Microsoft Azure, Microsoft Entra ID, Active Directory, Microsoft Exchange, and related infrastructure services.
• Configure and maintain integrations between Microsoft 365, Azure, identity, messaging, and on-premises systems.
• Administer identity synchronization, authentication, RBAC, and privileged access capabilities.
• Monitor availability, capacity, performance, security, and operational health of services.
• Investigate, troubleshoot, and resolve incidents, degradations, and configuration issues.
• Plan, test, document, and implement changes, upgrades, migrations, and service improvements.

Education

Microsoft Certifications (2+)

Tools

Microsoft 365

Microsoft Exchange

Azure

Microsoft Entra ID

Active Directory

Hybrid Infrastructure

Email Security

Automation Scripts

Job description

• Configure, administer, maintain, and support Microsoft 365, Microsoft Azure, Microsoft Entra ID, Active Directory, Microsoft Exchange, and related cloud, hybrid, and on-premises infrastructure services.
• Configure and maintain integrations between Microsoft 365, Azure, identity, messaging, and on-premises systems.
• Administer identity synchronization, authentication, role-based access control, and privileged access capabilities.
• Monitor the availability, capacity, performance, security, and operational health of supported infrastructure services.
• Investigate, troubleshoot, and resolve incidents, service degradation, configuration issues, and integration failures.
• Plan, test, document, and implement approved changes, upgrades, migrations, and service improvements.
• Assess Microsoft service changes and new capabilities, and provide technical impact analyses and recommendations.
• Identify infrastructure risks, vulnerabilities, and configuration deficiencies, and recommend mitigation measures.
• Support backup, recovery, business-continuity, and disaster-recovery activities for applicable services.
• Develop and maintain solution designs, configuration records, implementation plans, operational procedures, troubleshooting guides, change records, and knowledge articles.
• Provide technical analysis, advice, options, and recommendations to management, technical teams, and stakeholders.
• Provide knowledge transfer, technical guidance, and operational handover to designated personnel.

Location

Ottawa, ON (Hybrid)

Duration

30 weeks

Security Clearance

Secret

Responsibilities

• Configure, administer, maintain, and support Microsoft 365, Microsoft Azure, Microsoft Entra ID, Active Directory, Microsoft Exchange, and related cloud, hybrid, and on-premises infrastructure services.
• Configure and maintain integrations between Microsoft 365, Azure, identity, messaging, and on-premises systems.
• Administer identity synchronization, authentication, role-based access control, and privileged access capabilities.
• Monitor the availability, capacity, performance, security, and operational health of supported infrastructure services.
• Investigate, troubleshoot, and resolve incidents, service degradation, configuration issues, and integration failures.
• Plan, test, document, and implement approved changes, upgrades, migrations, and service improvements.
• Assess Microsoft service changes and new capabilities, and provide technical impact analyses and recommendations.
• Identify infrastructure risks, vulnerabilities, and configuration deficiencies, and recommend mitigation measures.
• Support backup, recovery, business-continuity, and disaster-recovery activities for applicable services.
• Develop and maintain solution designs, configuration records, implementation plans, operational procedures, troubleshooting guides, change records, and knowledge articles.
• Provide technical analysis, advice, options, and recommendations to management, technical teams, and stakeholders.
• Provide knowledge transfer, technical guidance, and operational handover to designated personnel.

Qualifications

• 5+ years of experience administering and supporting enterprise Microsoft 365 and Microsoft Exchange environments with a minimum size of 40,000 users, including Exchange Online administration, Exchange Server administration, hybrid Exchange configuration, mail flow and transport configuration, and email security configuration.
• 3+ years of experience configuring, administering, maintaining, and troubleshooting Microsoft Azure infrastructure services, including Azure virtual networks and subnets, Network Security Groups, Azure virtual machines, Azure Storage, and role-based access control for Azure resources.
• 5+ years of experience administering Microsoft Entra ID (formerly Azure Active Directory) and on-premises Active Directory Domain Services in a hybrid identity environment, including Microsoft Entra Connect Sync or Azure AD Connect, authentication and identity synchronization, role-based access control, Conditional Access, and Microsoft Entra Privileged Identity Management.
• 3+ years of experience developing and using scripts or functions to automate the administration, configuration, monitoring, or reporting of Microsoft 365, Microsoft Azure, Microsoft Entra ID, Active Directory, or Microsoft Exchange infrastructure services, including at least two examples of automation developed or substantially modified by the resource.
• Experience providing operational support for at least two enterprise Microsoft infrastructure environments, including monitoring service availability, performance, and operational health; investigating and resolving complex incidents; implementing changes through an established change-management process; identifying technical risks or configuration deficiencies; and developing or updating operational documentation.
• At least two active Microsoft certifications from the following: Microsoft Certified: Azure Administrator Associate; Microsoft 365 Certified: Administrator Expert; Microsoft Certified: Identity and Access Administrator Associate; Microsoft Certified: Azure Solutions Architect Expert; Microsoft Certified: Cybersecurity Architect Expert; or Microsoft 365 Certified: Messaging Administrator Associate.

Active Secret security clearance required.

AI Disclosure

We do not use artificial intelligence (AI) tools to screen, assess, or select applicants at any stage of our recruitment process. All applications are reviewed by our recruitment team.

OXARO is committed to fostering an inclusive, equitable and respectful workplace where every individual feels valued and empowered to contribute their best. We believe that diversity drives innovation and strengthens our ability to serve our clients and communities. We are dedicated to ensuring a fair and unbiased recruitment process and welcome applications from members of the four designated groups under the Employment Equity Act: women, Indigenous peoples, persons with disabilities and members of visible minorities.

Accommodations are available upon request for candidates taking part in all aspects of the recruitment process.

We sincerely thank all applicants for their interest in this opportunity. While we appreciate every application, only those selected for an interview will be contacted.