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J M Group Inc
Senior Infrastructure Administrator (Windows Server & VMware)J M Group Inc • Toronto, ON, Canada
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Senior Infrastructure Administrator (Windows Server & VMware)

Senior Infrastructure Administrator (Windows Server & VMware)

J M Group Inc • Toronto, ON, Canada
21 days ago
Job type
  • Full-time
  • Quick Apply
Job description

We are seeking a highly skilled Windows Server and VMware Administrator to manage, maintain, and modernise enterprise infrastructure environments. The ideal candidate must possess strong expertise in Windows Server administration, VMware vSphere/ESXi, and server upgrade and migration projects. The individual will play a key role in planning, executing, and supporting Windows Server upgrade initiatives while ensuring high availability, security, and operational excellence.

Key Responsibilities

Windows Server Administration

  • Administer and maintain Windows Server environments (2012, 2016, 2019, 2022 and later).
  • Perform server provisioning, configuration, patching, and lifecycle management.
  • Manage Active Directory, Group Policies (GPO), DNS, DHCP, and certificate services.
  • Monitor server health, performance, capacity, and availability.
  • Troubleshoot complex operating system and infrastructure issues.

Windows Server Upgrade & Migration

  • Lead Windows Server upgrade and migration projects.
  • Assess existing server landscapes and develop upgrade strategies.
  • Perform in-place and side-by-side migrations.
  • Coordinate application compatibility assessments.
  • Execute upgrade activities with minimal business disruption.
  • Develop rollback and contingency plans.
  • Conduct testing, validation, and post-upgrade support.

VMware Administration

  • Administer VMware vSphere, ESXi, and vCenter environments.
  • Manage virtual machine lifecycle operations.
  • Configure and maintain clusters, HA, DRS, vMotion, and Storage vMotion.
  • Perform VMware host upgrades and patch management.
  • Optimize virtual infrastructure performance and capacity.

Infrastructure Operations

  • Support enterprise backup and disaster recovery solutions.
  • Implement security hardening and vulnerability remediation.
  • Manage monitoring tools and operational dashboards.
  • Participate in Incident, Problem, and Change Management processes.
  • Develop and maintain infrastructure documentation and standard operating procedures.

Automation & Scripting

  • Automate routine administration tasks using PowerShell.
  • Develop scripts for server provisioning, upgrades, compliance checks, and reporting.
  • Improve operational efficiency through automation.

Technical Skills

Mandatory

  • Windows Server 2012/2016/2019/2022 Administration
  • VMware vSphere, ESXi, vCenter
  • Active Directory, DNS, DHCP, Group Policy
  • Windows Server Migration and Upgrade Planning
  • PowerShell Scripting
  • Patch Management (WSUS/SCCM/MECM)
  • High Availability and Disaster Recovery
  • Incident, Problem, and Change Management

Preferred

  • VMware SRM
  • Hyper-V
  • Azure IaaS
  • Veeam / Commvault Backup Solutions
  • SCOM, SolarWinds, LogicMonitor
  • Microsoft Entra ID (Azure AD)
  • Storage and Compute Infrastructure (Dell, HPE, Cisco UCS)

Certifications (Preferred)

  • VMware Certified Professional (VCP)
  • Microsoft Certified: Windows Server Hybrid Administrator Associate
  • Microsoft Azure Administrator Associate
  • ITIL Foundation

Key Deliverables

  • Successful execution of Windows Server upgrade projects.
  • Improved infrastructure stability, availability, and security.
  • Timely resolution of critical incidents.
  • Compliance with patching and security standards.
  • Accurate infrastructure documentation and operational runbooks.

Soft Skills

  • Strong stakeholder communication.
  • Excellent troubleshooting and analytical skills.
  • Ability to lead infrastructure upgrade initiatives.
  • Experience working with global teams and change windows.
  • Strong documentation and presentation skills.

Skills Required:

Must have:

GCP data platform architecture [BigQuery, Dataflow, Managed Apache Airflow (formerly Cloud Composer)]

secure data governance (NIST CSF, Assured Workloads, DLP/Encryption)

AI/ML integrations (Vertex AI, Agent Builder, BQ Conversational Analytics)

Good to have:

Cloud migration from Azure Data Lake

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Senior Infrastructure Administrator (Windows Server & VMware) • Toronto, ON, Canada

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