Senior Systems Administrator - Infrastructure & Cloud

isgSearch; Toronto; On-site; CAD 110,000 - 150,000; Full time

Benefits offered by this job

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

Job summary

isgSearch seeks a Senior Systems Administrator to own and stabilize the server and infrastructure estate while driving modernization through cloud adoption and ERP migrations. The role is hands-on and offers ownership of the environment from planning cutovers to post-cutover operations.

You will lead Azure and on-premises infrastructure, manage Active Directory, AD security, and M365 services, and partner with IT staff, vendors, and project teams to deliver change with minimal disruption.

Qualifications

• 7+ years of IT infrastructure and server administration experience.
• Expert-level Azure: Entra ID, VMs, 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.

Responsibilities

• Administering and maintaining the physical and virtual server estate, monitoring performance and availability.
• Owning Windows Server environment end to end including AD, DNS, DHCP and GPO.
• Maintaining storage, backup and disaster recovery platforms and testing business continuity.
• Planning and carrying out infrastructure upgrades and hardware lifecycle management.
• Leading cloud migration planning and implementation, monitoring cloud consumption and cost.
• Coordinating server and data migrations with cutover and rollback plans.
• Supporting ERP and wider infrastructure modernization initiatives.

Skills

AD & Group Policy

Azure Entra ID

VMware/Hyper-V

PowerShell

Networking basics

Migration planning

M365 administration

Security policies

Documentation

Tools

Terraform

Azure CLI

PowerShell scripting

Job description

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
• Strong 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

isgSearch does not use artificial intelligence throughout the hiring process.