System Administrator

Location: Toronto, ON, On-site 4 days a week
Duration: Full Time Permanent

Language: Strong written and verbal English communication skills required

About the Opportunity

Are you an experienced Systems Administrator who thrives in complex enterprise environments? We’re recruiting for a permanent opportunity with a leading organization in the energy sector that is focused on innovation, operational excellence, and building resilient technology solutions that support critical infrastructure.

In this role, you'll join a collaborative infrastructure team responsible for maintaining and modernizing hybrid IT and Operational Technology (OT) environments. You'll play a key role in ensuring secure, reliable, and scalable systems while working alongside technical experts to deliver solutions that have a meaningful impact across a global enterprise.

What’s In It for You

• Join a collaborative and highly skilled infrastructure team where knowledge sharing and continuous learning are encouraged.

• Gain exposure to enterprise-scale hybrid cloud, virtualization, and Microsoft technologies.

• Contribute to modernization initiatives that support critical business operations.

• Build your career in a culture that values innovation, accountability, and professional growth.

• Work on challenging projects with opportunities to expand your technical expertise across IT and OT environments.

Your Responsibilities

• You'll design, administer, and optimize hybrid infrastructure across Windows Server, VMware, Hyper-V, Azure, and Microsoft 365 environments.

• You'll manage Active Directory, Microsoft Entra ID, Exchange, Intune, and enterprise identity and access management solutions.

• You'll oversee virtualization, storage, backup, disaster recovery, and business continuity initiatives to ensure resilient infrastructure.

• You'll provide Tier 3 technical support, troubleshoot complex infrastructure issues, and collaborate with internal teams and service providers.

• You'll implement security best practices through patch management, vulnerability remediation, monitoring, automation, and performance optimization.

Skills and Qualifications

• 5+ years of progressive Systems Administration or Infrastructure Operations experience within enterprise environments.

• Advanced experience with Windows Server, Active Directory, Microsoft Entra ID, Microsoft 365, Azure, VMware vSphere, and Microsoft Hyper-V.

• Strong knowledge of Exchange, SQL Server, PowerShell, networking fundamentals, virtualization, storage, and enterprise backup platforms including Veeam, Cohesity, or Acronis.

• Experience administering Microsoft Intune, Azure Backup, Azure Site Recovery, and identity security technologies including MFA, Conditional Access, and PIM.

• Excellent troubleshooting, communication, and stakeholder management skills with the ability to prioritize multiple initiatives.

• Experience supporting Linux environments, OT infrastructure, or Palo Alto, Cisco, or HPE Aruba technologies is considered an asset.

Note from the Hiring Manager

"We're looking for someone who enjoys solving complex infrastructure challenges, takes ownership of their work, and is excited to help modernize enterprise technology while collaborating with a supportive and knowledgeable team."

Why Partner with Altis

If you’ve never worked with a staffing agency before, we make it easy. We work with top employers across Canada who have great jobs to fill, each vetted and verified by our team. When you apply for a job with Altis, we get to know you as a candidate and learn what your strengths are. Then, if you’re a solid match, we handle all the logistics, advocating for you as a candidate for the role, providing access to coaching and connecting you directly with the hiring manager. And rest assured, all our services are free of cost for candidates.