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Senior Microsoft Support Lead; review enterprise Microsoft infrastructure environments using

Job in Ottawa, Ontario, Canada
Listing for: S.i. Systems
Contract position
Listed on 2026-07-21
Job specializations:
  • IT/Tech
    Windows Server, Systems Administrator, IT Infrastructure
Job Description & How to Apply Below
Position: Senior Microsoft Support Lead (10+ years) to review enterprise Microsoft infrastructure environments using Active

Our payment services client is seeking a Senior Microsoft Support Lead (10+ years) to review enterprise Microsoft infrastructure environments using Active Directory, Windows Server, and VMware vSphere

This role supports a large-scale enterprise Microsoft environment requiring deep Level 3 infrastructure expertise across core Microsoft technologies. The consultant will assess and support Active Directory, Group Policy, Windows Server, Remote Desktop Services, and VMware infrastructure in a complex enterprise setting. The opportunity is fully remote and focused on high-level infrastructure review and troubleshooting initiatives.

6 month contract, Toronto, Remote,

Working Hours:

EST

Must Haves

  • 10+ years supporting enterprise Microsoft infrastructure environments
  • 5+ years of Level 3 support across Active Directory
    , DNS integration
    , FSMO roles
    , and authentication troubleshooting
  • Group Policy design, deployment, troubleshooting,
    security baselines
    , GPO auditing
    , and reporting
  • Windows Server //,
    Power Shell scripting
    , clustering
    , DFS
    , and PKI
  • Advanced administration of Remote Desktop Services (RDS),
    Remote App
    , and VMware vSphere
    , ESXi
    , and vCenter
  • Nice to Have

  • Performance tuning and security hardening
  • VMware HA, DRS, vMotion, storage, and networking troubleshooting
  • Responsibilities

  • Review enterprise Microsoft infrastructure environments
  • Support Active Directory administration and troubleshooting
  • Manage Group Policy deployment, auditing, and reporting
  • Administer Windows Server // environments
  • Deploy and troubleshoot Remote Desktop Services and Remote App
  • Support VMware vSphere, ESXi, and vCenter infrastructure
  • Position Requirements
    10+ Years work experience
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