Systems Administrator (Active Directory, Email, M365

Job Posting Title

Systems Administrator (Active Directory, Email, M365) Job Category

Infrastructure

Language Requirements

English / Anglais English is required / L'anglais est requis

Flexible Work Agreement Type

Hybrid / Hybride

Posting End Date

Job Grade

PIPSC-3

Pay Range

$111,451 - $140,007

As an Infrastructure Analyst on the Compute Platform Management team, you will be responsible for supporting and administering a portfolio of enterprise platforms that strengthen identity and access management, unified communication, productivity tools, security, and visibility across the organization. In this role, you’ll work hands‑on with technologies such as Active Directory Domain Services (AD DS), Azure Entra , Exchange, and Microsoft 365 Platform, ensuring these platforms remain healthy, secure, and ready to support the business.

You’ll also contribute to the full lifecycle of complex infrastructure domains, including planning, development, configuration, implementation, and ongoing enhancements.

This position is ideal for an administrator who enjoys owning production platforms, solving complex technical problems, and continuously improving how services are operated. You will collaborate closely with infrastructure, security, and service delivery teams, acting as a technical escalation point and helping translate operational needs into stable, well run services.

At NAV CANADA, you won’t just keep systems running—you’ll contribute to a nationally significant mission, work with modern enterprise technologies, and grow your career in a stable, safety focused organization that values technical excellence, teamwork, and continuous learning.

• Challenging, team‑oriented work environment
• Competitive compensation and benefits
• Defined benefit pension plan
• Opportunities for growth and development
• Flexible work arrangements
• Diverse and inclusive workforce

• Administer, support and provide subject‑matter expertise of Active Directory Domain Services, Entra , DNS, LDAP, DHCP, Time Services and PKI to ensure the services are healthy
• Support on‑premises, hybrid and cloud‑based solution and configuration including but not limited to Domain Controllers, SAML, OAuth, Entra  M365 platform.
• Administer, support and provide subject‑matter expertise of Enterprise‑level communication systems and services, including MS Exchange, MS Exchange Online, MS Teams and VoIP
• Administer and support Microsoft 365 Platform and services, including SharePoint Online, Teams, Office 365 and other productivity and collaboration apps
• Provide 2nd and 3rd level support, utilizing ITIL‑based practices, to troubleshoot and resolve system incidents, problems, and changes, related to authentication, identity, messaging, productivity and collaboration platforms, and mobile management systems
• As subject‑matter expert, work with system owners and technical teams across the organisation to resolve issues that require a cross‑functional solution
• Design, plan, implement and test system configuration, interface and interconnection
• Develop, and maintain documentation of system requirements, design, architecture, roadmap, configurations, standards, and procedures for the operation and recovery of supported platforms.
• Automate common or repetitive tasks and provide scripts to support the reporting, configuration, and maintenance of systems and processes
• Keeps abreast of emerging computing trends, evolving technology platforms and best practices in areas of specialization.

• A college diploma or university degree from a recognized institution in the field of computer science or information systems, or an acceptable combination of education, experience and training.

• 3 plus years hands‑on experience administering and supporting Domain Services, Identity and Access management, Enterprise‑level communication and collaboration platforms while following structured change control processes within large Enterprise‑level environments.
• Hands‑on experience supporting MS Exchange and Exchange Online operation and maintenance, including patching, certificate renewals, upgrades, OWA, SMTP…