SYSTEM ADMINISTRATOR - SENIOR

Les Câbles Ben-Mor•Saint-Hyacinthe, QC

42d•Onsite

About The Position

Are you known for your deep systems expertise, your ability to optimize complex environments, and your instinct for turning repetitive work into smart automation? Do you thrive in Windows-based infrastructures, where reliability, security, and performance matter — and where PowerShell is a core tool, not just an option? If you enjoy modernizing environments, influencing technical decisions, and playing a key role in strategic IT evolution, we’d like to meet you 🚀 🚀 Your Role Within the Team As a Senior Systems Administrator, you will play a central role in the architecture, operations, and evolution of the company’s IT infrastructure. Your day-to-day work will focus primarily on a Microsoft Windows environment, where you will ensure the stability, availability, performance, and security of critical systems, virtualization platforms, storage solutions, and backup environments. You will also play a major role in automating operational processes using PowerShell, helping standardize system administration tasks, improve efficiency, and reduce manual intervention. In a context of infrastructure modernization and gradual migration away from VMware, your expertise will directly support technological decisions, migration planning, and implementation of future-ready standards.

Requirements

Strong experience with Windows Server environments;
Advanced proficiency in PowerShell scripting and automation;
Solid knowledge of Active Directory, GPO, DNS, DHCP, and certificate services;
Experience with virtualization platforms (Hyper-V / VMware);
Networking knowledge: TCP/IP, VLAN, VPN, firewalls;
Backup, storage, and resilience concepts.
12 to 15 years of experience in systems administration;
Proven experience in critical Windows environments;
Hands-on experience with infrastructure migrations or modernization projects;
Degree in Computer Science or equivalent practical experience.
Functional French and English, both spoken and written, to collaborate with English-speaking colleagues outside Quebec.

Nice To Haves

Linux in complementary environments;
Azure, AWS, Entra ID, Intune;
Ansible, Python, Terraform, Git;
Docker / Kubernetes;
Relevant Microsoft, VMware, Linux, or security certifications;
Knowledge of C/AL (Business Central).

Responsibilities

Administer and continuously improve Windows Server environments across multiple sites;
Manage core infrastructure services including Active Directory, DNS, DHCP, Group Policies, certificates, file services, permissions, and security controls;
Ensure production stability and high system availability;
Troubleshoot and resolve complex level 3 incidents;
Contribute to continuous improvement of system administration standards.
Automate recurring administrative and operational tasks using PowerShell;
Develop and maintain robust scripts for deployment, maintenance, monitoring, and system management;
Standardize administration processes across environments;
Reduce manual workload through intelligent automation;
Document scripts, procedures, and best practices.
Administer and evolve virtualization environments (Hyper-V and VMware);
Support the strategic migration away from VMware;
Plan and execute workload migrations using controlled methods;
Optimize platform performance, capacity, and resilience.
Define and maintain backup and recovery strategies;
Establish and document RTO / RPO objectives;
Implement proactive monitoring and alerting;
Apply infrastructure hardening and security best practices.
Act as a senior technical reference within the IT team;
Support company sites across Canada and the United States;
Participate in infrastructure projects, architecture reviews, and strategic decisions;
Collaborate with network, application, and operational teams.