Systems Administrator III (Windows)

Job summary

The role involves building, deploying, and managing enterprise Windows Server infrastructure and SCCM patching. It also requires supporting multi-node clusters and developing PowerShell automation to improve operational efficiency.

Job details

Position: Systems Administrator III - Windows Location: Etobicoke - 3 days onsite Salary: $100,000 + 10% bonus Posting Type: Open vacancy Our client is looking for an experienced Systems Administrator III to support and maintain mission-critical Windows Server infrastructure across enterprise on-premises and hybrid cloud environments. This is a hands-on, server-focused role responsible for Windows Server administration, SCCM patching, platform upgrades, high-availability clustering, production troubleshooting and infrastructure automation. The successful candidate will work closely with Infrastructure, Engineering, Security and SQL DBA teams to maintain reliable and secure production environments. Description: - Build, deploy, patch, upgrade and manage enterprise Windows Server environments. - Administer Active Directory, DNS and Group Policy. - Perform hands-on SCCM server patching and lifecycle management. - Drive platform currency, patching and in-place server upgrades. - Support and troubleshoot multi-node Microsoft Windows clusters. - Support SQL Server high-availability environments and work closely with SQL DBAs. - Resolve complex production incidents through advanced troubleshooting and root cause analysis. - Develop PowerShell automation to improve infrastructure operations. - Maintain runbooks, documentation and operational standards. - Collaborate with Infrastructure, Engineering, Application, Security and DBA teams. - Support ongoing infrastructure modernization and lifecycle initiatives. Skills: - 3+ years of hands-on Windows Server administration in an enterprise environment. - Strong experience building, deploying, patching and managing Windows Servers. - Hands-on SCCM experience specifically focused on server patching - not EUC. - Strong Active Directory, DNS and Group Policy experience. - Experience supporting multi-node Microsoft/Windows clustering and high-availability environments. - Experience supporting SQL Server high availability. - Strong PowerShell scripting and infrastructure automation experience. - Strong production troubleshooting and root cause analysis skills. - Ability to independently manage and resolve complex server infrastructure issues. - Strong enterprise/server administration background. Nice to Have: - Azure and hybrid cloud experience - Ansible or similar configuration management experience - VMware virtualization experience - Experience with PCI DSS, CIS benchmarks or payment-processing environments - Experience working with MSSPs or managed security monitoring environments - Relevant infrastructure or security certifications Important: This is a server-focused Windows administration role. Candidates should have strong enterprise Windows Server experience, including SCCM server patching and multi-node/high-availability clustering. EUC-focused candidates and generalist IT profiles are not the target for this position. Please send your resume to [email protected]. REFER A PERM HIRE AND EARN A CASH BONUS! For details, click here. All applications are reviewed by our recruitment team, and hiring decisions are made by people. We may also use AI-enabled tools to support parts of the application review process. #qtrtor1

What you’ll do

The role involves building, deploying, and managing enterprise Windows Server infrastructure and SCCM patching. It also requires supporting multi-node clusters and developing PowerShell automation to improve operational efficiency.

Requirements

Candidates need 3+ years of enterprise Windows Server experience with a strong focus on server patching and high-availability clustering. Proficiency in Active Directory, DNS, Group Policy, and PowerShell is required.

Benefits

• Bonus

Listed skills

• Microsoft Azure · Preferred
• Active Directory · Preferred
• VMware · Preferred
• DNS · Preferred
• Root Cause Analysis · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• Windows Server Administration
• SCCM Server Patching
• Active Directory
• DNS
• Group Policy
• Windows Clustering
• High Availability
• SQL Server Support
• PowerShell Scripting
• Infrastructure Automation
• Root Cause Analysis
• Azure
• Ansible
• VMware
• PCI DSS
• CIS Benchmarks

Job areas

• Technology
• Software
• Engineering
• Security & Safety