Senior Network Support Enginee
Location
mississauga, on
Job Type
Full-time
Category
Other-General
Posted
May 23, 2026
Job Description: Onsite Security Engineer Role Overview The Onsite Security Engineer is responsible for managing and supporting enterprise security technologies at the client location. This includes Endpoint Detection & Response (EDR), Extended Detection & Response (XDR), Microsoft Security stack, network security controls, cloud security, and secure internet gateways. The role requires hands‑on expertise in Microsoft Defender ecosystem, Azure security, Cisco firewalls, and automation using PowerShell, ensuring proactive threat detection, response, and compliance with security standards.
Key Responsibilities Security Operations & Threat Management
Manage and monitor EDR/XDR platforms for threat detection and response.
Investigate security incidents, alerts, and anomalies and provide timely remediation.
Perform threat hunting and root cause analysis.
Maintain security baselines and hardening standards.
Microsoft Security & Identity
Key Responsibilities Security Operations & Threat Management
Manage and monitor EDR/XDR platforms for threat detection and response.
Investigate security incidents, alerts, and anomalies and provide timely remediation.
Perform threat hunting and root cause analysis.
Maintain security baselines and hardening standards.
Microsoft Security & Identity