We are looking for a Senior Cyber Security Specialist to strengthen and advance our security operations in North York, Ontario.

In this role, you will help protect enterprise systems, cloud platforms, and end-user environments by identifying risks, responding to threats, and driving practical security improvements.

You will work across infrastructure, identity, endpoint, and network security while supporting compliance efforts and promoting a robust security culture throughout the organization.

This role is hybrid 2 days onsite in North York! Responsibilities: • Monitor, investigate, and respond to security events across cloud, network, endpoint, and identity environments using SIEM and threat detection tools. • Conduct vulnerability assessments, interpret findings, and partner with technical teams to prioritize and track remediation activities. • Administer and enhance security controls within Microsoft technologies, including Defender, Sentinel, Intune, Entra,



Microsoft 365, and Azure. • Strengthen firewall and perimeter protections by configuring, reviewing, and troubleshooting platforms such as Check Point and Cisco security technologies. • Support incident response efforts by analyzing suspicious activity, containing threats, documenting outcomes, and recommending preventive measures. • Contribute to governance, risk, and compliance initiatives by helping align security practices with recognized frameworks and internal requirements. • Promote security awareness by assisting with education programs, guidance materials, and practical recommendations for reducing user-related risk. • Assess and improve security architecture with a focus on Zero Trust principles, network segmentation, identity protection, and endpoint resilience.

📌 Senior Cyber Security Specialist (Toronto)
🏢 Robert Half
📍 Toronto