Senior Server Administrator
- Calgary, AB
- On-site
- Posted Sep 18, 2026
- 1 position
$50–$55 / hour
Opens an external site
- Employment type
- Contract
- Experience level
- Lead · 10+ years
- Minimum education
- Professional degree
- Apply by
- Oct 14, 2026
- Posting language
- English
- Working hours
- 40 hours per week
- Seniority
- Mid-Senior level
- Application method
- Direct apply is available
Job summary
The role focuses on planning and executing Windows Server upgrades and infrastructure modernization projects. Responsibilities include administering VMware environments, managing Active Directory services, and coordinating with cross-functional technical teams.
Job details
We are seeking experienced Senior Server Administrators to support server upgrade and infrastructure modernization project. The role involves planning, upgrading, troubleshooting, and validating enterprise Windows Server environments along with VMware and Active Directory infrastructure. Candidates must be comfortable working onsite, coordinating with multiple technical teams, and supporting critical production systems. Key Responsibilities • Perform Windows Server upgrades and migrations (2012/2016/2019 to newer versions). • Administer and support VMware vSphere, ESXi, and vCenter environments. • Manage Active Directory, DNS, DHCP, Group Policies, and related services. • Execute server patching, health checks, and performance validation activities. • Coordinate with Network, Security, Database, and Application teams during upgrade activities. • Perform backup, restoration, and disaster recovery validation. • Troubleshoot server, virtualization, storage, and operating system issues. • Document configurations, procedures, risks, and upgrade outcomes. • Support after-hours maintenance windows and project cutover activities. • Ensure compliance with security and operational standards. Required Skills & Experience • 8+ years of Windows Server Administration experience. • Strong experience with VMware vSphere, ESXi, vCenter, HA, DRS, and vMotion. • Strong Active Directory administration experience. • Experience with Windows Server 2012, 2016, 2019, and 2022. • Experience with PowerShell scripting and automation. • Strong troubleshooting and root cause analysis skills. • Experience supporting enterprise-scale infrastructure environments. • Excellent communication and documentation skills. Preferred Qualifications • VMware VCP Certification. • Microsoft Windows Server Certifications. • Experience with Nutanix, Azure, or AWS. • Experience in large infrastructure upgrade or migration projects.
What you’ll do
The role focuses on planning and executing Windows Server upgrades and infrastructure modernization projects. Responsibilities include administering VMware environments, managing Active Directory services, and coordinating with cross-functional technical teams.
Requirements
Candidates need over 8 years of experience in Windows Server and VMware administration, including proficiency with PowerShell. Experience with enterprise-scale infrastructure and strong troubleshooting skills are required.
Listed skills
- Technical Documentation · Preferred
- DHCP · Preferred
- Active Directory · Preferred
- DNS · Preferred
- Root Cause Analysis · Preferred
Other relevant skills
Identified from the job description. Confirm important requirements above.
- Windows Server Administration
- VMware vSphere
- Active Directory
- PowerShell Scripting
- ESXi
- vCenter
- DNS
- DHCP
- Group Policy
- Server Migration
- Disaster Recovery
- Root Cause Analysis
- Infrastructure Modernization
- Server Patching
- Performance Validation
- Technical Documentation
Job areas
- Technology
- Energy
- Software
- Engineering
- Consulting
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