Responsable de la sécurité des systèmes / System Security Administrator

Estruxture Data Centers•Montreal, QC

41d•Hybrid

About The Position

As our System Security Administrator, you’ll take the lead on managing and securing the backbone of eStruxture’s IT infrastructure. In this high-impact role, you’ll own the complete technology stack—from servers to virtualization—ensuring 24/7/365 operational excellence. You’ll act as a critical point of contact for internal customers, providing professional communication while relentlessly hardening our systems against attack and maintaining a posture of total readiness. This role is a great fit for someone with a solid technical background with knowledge of cybersecurity, good organizational skills, and a proactive mindset.

Requirements

2–3 years of experience in an IT related or service provider role with a strong background in cybersecurity.
Strong experience administrating and with patch management for Windows and Linux servers.
Hands-on experience working with VMWare and Hyper-V environments
Experience working with Veeam Backup and Replication
Familiarity with security monitoring concepts and technologies (e.g., SIEM).
Basic understanding of network security principles (e.g., firewalls, IDS/IPS).
Demonstratable understanding of IT systems administration and light networking principles.
Basic network experience including switching, WiFi, DHCP, and DNS required
Strong analytical and problem-solving skills.
Organized and able to manage multiple priorities.
Effective communicator—both written and verbal.
Comfortable working independently and within a team.

Nice To Haves

Experience working in or with a SOC environment and similar security service providers.
Exposure to security platforms and scripting (PowerShell, Bash, Python).
Proficiency with specific security tools and platforms used to remediate vulenerabilities.
Knowledge of cloud platforms and cloud security (AWS, Azure, GCP).
Quest KACE system management appliance (SMA).
VMWare Certified Associate and/or related Hyper-V certification
Any relevant security certifications (e.g., CompTIA Security+, Network+, CySA+, SSCP) are a plus.
Experience with VMware/vSphere, Microsoft and Linux server environments.
Understanding of security frameworks and compliance standards (e.g., ISO 27001, SOC 2, NIST CSF).
Automation and scripting for server maintenance and patching.

Responsibilities

Administration: Install, configure, and maintain IT infrastructure, including virtual machines, hypervisors (VMware/Hyper-V), and guest applications.
Incident Response: Respond to escalated support requests and investigate service degradations or outages to ensure 100% operational continuity.
Monitoring & Backups: Proactively monitor IT systems for performance improvements and ensure all data is backed up and tested according to disaster recovery policies.
On-Site & On-Call: Participate in a 24/7/365 on-call rotation and travel to data center sites as required to deploy hardware or support onsite resources.
Work closely with the Security Operations Center (SOC) to analyze, identify, and remediate system vulnerabilities.
Plan, schedule, and execute regular patching for Windows and Linux servers to mitigate emerging threats.
Develop and implement technical remediation plans to harden IT infrastructure against cyberattacks.
Track the progress of security projects, providing regular status updates to leadership and leading periodic security meetings with stakeholders.
Assist in drafting and implementing security policies, standards, and procedures to align with industry best practices.
Participate in compliance activities, including security assessments, regular IT testing (DR), and supporting external security audits.
Assist the SOC with security alerts and incident analysis, contributing to the refinement of monitoring rules and processes.
Create and maintain accurate infrastructure documentation, incident response plans, and vulnerability management workflows.
Act as a backup for internal IT end-user support and provide coaching/training to junior IT Support Analysts.
Other related duties/tasks may be assigned as organizational needs arise.