Job title: Senior Systems Administrator - Infrastructure & Cloud

Duration: Permanent

Role status: Current opening

Our client: A Canadian manufacturer in the Greater Toronto Area, running a continuous production environment supported by a modern in-house IT function.

Intro: Reporting to the Director of Technology, this role keeps the server and infrastructure estate stable day to day while leading the technical side of the organization's modernization programme - cloud adoption, platform upgrades, and application and data migration. It suits a hands-on senior administrator who wants ownership of the environment rather than a narrow queue, and who is comfortable planning a cutover as well as running the platform afterwards.

Principal tasks and responsibilities include:

- Administering and maintaining the physical and virtual server estate, monitoring performance, capacity and availability
- Owning the Windows Server environment end to end, including Active Directory, Group Policy, DNS and DHCP
- Maintaining storage, backup and disaster recovery platforms, and keeping business continuity processes in place and tested
- Administering Microsoft 365 and the cloud-connected services alongside it
- Planning and carrying out infrastructure upgrades and hardware lifecycle management
- Supporting Azure services across a hybrid estate - virtual machines, storage, networking and identity
- Contributing to cloud migration planning and then implementing it, and monitoring and optimizing cloud consumption and cost
- Leading the technical planning and execution of server, application and data migrations, including cutover and rollback plans
- Moving workloads off legacy platforms onto current ones, and validating migrated data and systems before sign-off
- Supporting ERP, application and wider infrastructure modernization initiatives
- Applying infrastructure security practice: access control, privileged account management,



patch management and vulnerability remediation
- Maintaining technical documentation and system architecture diagrams
- Working alongside internal IT staff, vendors and project teams
- Taking part in planned after-hours maintenance and upgrade windows as required

Qualifications and pre-requisites:

- Minimum 7 years of IT infrastructure and server administration experience
- Minimum 7 years managing Active Directory, DNS, DHCP and Group Policy
- Expert-level Azure: Entra ID, virtual machines, storage, networking and App Services
- Experience with SSO, MFA, Conditional Access, RBAC and advanced security policies
- Experience with VMware, Hyper-V or comparable virtualization technologies
- Experience with backup, disaster recovery and business continuity technologies
- Strong understanding of networking fundamentals
- Demonstrated experience leading infrastructure, cloud and ERP migrations
- Microsoft 365 administration experience
- Automation experience with PowerShell, Azure CLI, Terraform or equivalent tooling
- Experience supporting a cloud transformation initiative
- Familiarity with VOIP telephony, label printers and bar code scanners
- Sound understanding of IT service management, and of change and release management procedures
- Able to analyze, evaluate and define needs, and to create and execute implementation test plans
- Solid analytical, problem-solving, organizational and time-management skills
- Excellent communication, customer service and presentation skills, working well independently and as part of a team
- Experience supporting manufacturing production environments is an asset
- Knowledge of budget and vendor management is an asset

Additional information or perks:

- Profit sharing
- Health and dental coverage
- Health care spending account
- Education assistance programme
- Employee assistance programme (EAP)
- Paid holidays and floater days
- Shift premiums
- Company events

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📌 Senior Systems Administrator - Infrastructure & Cloud (Greater Toronto Area)
🏢 isgSearch
📍 Greater Toronto Area