Sr. IT Security Analyst

Title: Sr. IT Security Analyst

Department: Information Technology

Location: 6300 Steeles Ave West, Woodbridge

Total Potential Compensation: $115,000-$140,000

Position Summary: 

The Senior Security Analyst – Security Operations is responsible for operating, maturing, and continuously improving core cyber defense and detection capabilities across the enterprise. This role has a strong focus on Vulnerability Management, Endpoint Detection & Response (EDR), Network Detection & Response (NDR), and day‑to‑day Security Operations. 

The incumbent will act as a senior technical resource within the SOC, providing advanced analysis, threat-driven prioritization, and operational leadership across security monitoring, incident response, vulnerability remediation, and control effectiveness measurement. The role directly contributes to improving the organization’s cyber risk posture, with measurable outcomes reflected in Security Risk Index (SRI) and other governance metrics aligned to NIST and ISO frameworks. 

After-hours support and on-call duties may be required for high-severity security incidents. 

Position Responsibilities: 

Vulnerability Management 

• Own and operate the enterprise vulnerability management lifecycle, including discovery, assessment, prioritization, remediation tracking, and risk acceptance 

• Correlate vulnerability data with asset criticality, exploitability, threat intelligence, and exposure to drive risk-based remediation 

• Track remediation SLAs and escalate overdue or accepted risks through appropriate governance channels 

• Support internal and external audit evidence for vulnerability management controls 

• Contribute vulnerability metrics to executive and risk committee reporting (e.g., SRI/NSRI) 

Endpoint Detection & Response (EDR) 

• Operate and tune EDR platforms to improve detection fidelity, reduce false positives, and enhance response effectiveness 

• Analyze endpoint telemetry for indicators of compromise (IOC), anomalous behavior, and threat actor activity 

• Support endpoint containment actions such as process isolation, host quarantine, and forensic data collection 

• Partner with IT Operations to ensure EDR coverage, health, and policy compliance across endpoints 

Network Detection & Response (NDR) 

• Operate and maintain NDR capabilities, including alert triage, investigation, and threat hunting 

• Analyze network traffic, metadata, and behavior-based detections to identify lateral movement, command-and-control activity, and policy violations 

• Collaborate with Network teams to validate detections and improve network security controls and segmentation 

• Use NDR telemetry to validate network segmentation effectiveness and control gaps 

Threat Detection & Threat Hunting 

• Perform proactive threat hunting using EDR, NDR, SIEM, and log analytics platforms 

• Apply MITRE ATT&CK–aligned techniques to identify stealthy or low-signal threats 

• Integrate external threat intelligence into detection and hunting activities 

• Recommend detection engineering improvements to SOC tooling and analytics 

Metrics, Risk & Compliance 

• Define and maintain security operations KPIs and KRIs (incident trends, MTTR, vulnerability aging, control coverage) 

• Contribute to Security Risk Index (SRI) calculations and continuous improvement initiatives 

• Ensure alignment with NIST CSF, ISO 27001/27002, and internal security standards 

• Support audits by providing defensible evidence of control operation and effectiveness 

Continuous Improvement & Leadership 

• Mentor junior analysts and provide technical guidance within the SOC 

• Identify opportunities to improve automation, orchestration, and response workflows 

• Participate in security architecture reviews and technology evaluations related to detection and response 

• Contribute to the development of security standards, procedures, and operational playbooks 

Identity & Access Management (IAM) 

• Support operational security of IAM platforms (e.g., Active Directory, Azure AD / Entra ID, PAM solutions) 

• Monitor and investigate identity‑based threats, including credential misuse, privilege escalation, and anomalous authentication behavior 

• Correlate IAM events with EDR, NDR, and SIEM telemetry during incident investigations 

• Support access reviews, entitlement validation, and privileged access oversight in collaboration with IAM and IT teams. 

• Assist with detection and response use cases related to:  

- Compromised accounts. 

- Excessive privileges.

- Service account misuse.

- Lateral movement via identity. 

• Contribute to IAM‑related risk metrics and control effectiveness reporting (e.g., MFA coverage, privileged account exposure). 

• Support audit evidence for IAM controls aligned to NIST CSF PR.AA, ISO 27001 A.5/A.8, and internal access standards. 

Qualifications  

• Minimum 5+ years of experience in IT Security, with strong hands-on experience in Security Operations.

• College Diploma or University Degree in Computer Science, Engineering, or related field.

• EDR platforms (e.g., endpoint containment, alert triage, investigation).

• NDR technologies and network-based threat detection.

• Security Incident Response and Investigation.

• Strong understanding of attacker techniques and defensive controls (MITRE ATT&CK). 

• Experience working in regulated or audit-driven environments.

• Hands‑on experience supporting IAM security operations, including identity monitoring and access control validation.

• Strong understanding of authentication, authorization, MFA, RBAC, and privileged access concepts. 

• Experience analyzing identity logs and alerts within SIEM or security analytics platforms.

Preferred Qualifications

• Experience with enterprise SOC tooling including SIEM, EDR, NDR, SOAR.

• Experience operating security controls in hybrid (on‑prem and cloud) environments. 

• Familiarity with Security Risk Index (SRI), cyber risk metrics, or risk-based reporting.

• Knowledge of network architecture and segmentation concepts. 

• One or more of the following certifications:  

- CISSP 

- CISM 

- GCIA / GCED / GCEDR / GCIH 

- CompTIA Security+ 

- SANS Blue Team certifications