Senior Systems Administrator

Semex•Guelph/Eramosa, ON

65d•$72,200•Hybrid

About The Position

We are currently looking for a Senior Systems Administrator (Hybrid Azure / On-Prem Windows Server) to fill a vacancy and join our IT team. Reporting to the Supervisor, Infrastructure & Security, this role operates with broad autonomy and is accountable for the stability, security, and long-term technical direction of the organization’s core infrastructure platforms.

Requirements

Bachelor’s Degree in Computer Science (or equivalent experience)
10+ years in On-Prem Systems/Server Administration
CompTIA Server+, Network + , Microsoft Certified: Windows Server Hybrid Administrator, Azure Administrator Associate
Hands-on experience building a Hyper-V in production environments, HPE SAN
Handling connections published remote applications with RDS App farms
Proven experience with disaster recovery planning in multi-site environments.
Strong problem-solving, communication for cross-teams collaboration, organizational, attention to detail, and problem‑solving skills
Technical expertise in:
Hyper‑V Cluster virtualization (Virtual Machine Manager -VMM)
Microsoft Active Directory, On-Prem Exchange, Failover DHCP, Domain Trusts
Azure (VMs, SaaS/PaaS offerings, IAM, Microsoft Defender/ATP)
Firewalls, switches, networking (Sonicwall, HPE, Aruba)
Backup and recovery systems (Veeam Backup & Replication)
Patch management (WSUS or Intune equivalent)
Automated Scripting (PowerShell, Python, KQL)

Responsibilities

Research, evaluate, and architect Azure Local (Azure Stack HCI) solutions alongside on-premises Hyper-V clusters for high-availability virtualization in a new data center deployment.
Serve as the internal owner and escalation authority for third party SOC 24×7 threat detection, investigation, guided remediation, and incident response.
Own and define security best practices, conduct regular audits, apply patches (WSUS/server firmware/OS/workstation software), and harden servers, networks, and endpoints.
Design, deploy, secure, and optimize Azure resources, including virtual machines (IaaS), SaaS/PaaS services, identity (Entra ID hybrid), networking, and security features (e.g., Defender/ATP).
Manage, monitor, and maintain on-premises Microsoft infrastructure, including Active Directory, Exchange (on-prem/hybrid), Windows Servers (2012–2022), MSSQL databases, and RDS environments with published RemoteApp applications and Connection Broker.
Monitor system performance, capacity, and health across hybrid environments; proactively troubleshoot and resolve incidents to maintain uptime and reliability.
Configure and manage core networking infrastructure, including switches (HPE/Aruba), firewalls (SonicWall), VLANs, and hybrid connectivity to Azure.
Administer multi-site backup and disaster recovery operations using Veeam Backup & Replication, ensuring 3-2-1 backups, replication, and cloud offsite storage/validation.
Deliver Tier 2/3 technical support for escalated issues, as the technical authority for hybrid infrastructure standards, patterns and operational practices across the organization, and mentor Tier 1 Desktop support staff.
Perform additional duties as assigned by IT and business leadership, including project work, vendor coordination, and emerging technology evaluations.

Benefits

Company paid comprehensive benefits program: Including extended health and dental care for employees and eligible dependents
Short and long-term disability coverage
Employee & Family Assistance Program
Defined Contribution Pension Plan with employer matching
Competitive salary, merit pay and annual performance bonus
Paid time off: Vacation, Personal and Sick time
Employee Recognition Program
Learning and development opportunities
Social committee events
Annual allowance for Semex Shop to purchase Semex / Boviteq branded clothing and merchandise