Senior Cyber Security Engineer

Provide SME leadership to improve Cloud security posture, ensuring adherence to regulatory standards and best practices across all infrastructure and services.

Deploy and manage WAF, DLP (endpoints, cloud, email), XDR/ EDR platforms, Cloud Security tools (CrowdStrike CNAPP, Tenable CSPM) and SIEM and SOAR (Azure); lead Incident Response efforts while integrating AI/ML threat detection to safeguard against evolving AI based and data-centric risks.

Partner with software engineering teams to embed secure coding, conduct application security testing (SAST &DAST), and reinforce application-layer defenses throughout the SDLC.

Manage and enhance the Vulnerability Management Program using Tenable; provide SME-level threat intelligence to proactively track emerging vulnerabilities and drive the implementation of security patches, configuration changes, and targeted mitigations.

Conduct regular risk assessments, support penetration testing (external & internal), and compliance audits to enforce adherence to industry frameworks (ISO 27001, NIST, CIS, GDPR, SOC 2), while actively supporting all security audit and regulatory requirement initiatives.

Develop and continuously refine security playbooks, incident response plans, and threat-hunting methodologies to strengthen detection capabilities and organizational resilience.

Monitor, analyze, and respond to incidents via Azure Sentinel; provide SME-level support to analysts using CrowdStrike and Azure Sentinel for advanced threat investigations, while crafting SIEM use cases tailored to the current threat landscape.

Lead IR efforts—including containment, eradication, and forensic analysis—while executing a strategic vision to develop innovative approaches that accelerate threat response and remediation and continuously refine incident response plans and threat-hunting methodologies.

Harden CAAT environments against AI/ML-based attacks; provide technical mentorship to junior security engineers and analysts; and clearly communicate security risks and mitigation strategies to stakeholders.

Lead the documentation of security incidents, technical project requirements, runbooks, and standard operating procedures to institutionalize knowledge across teams as an SME.

Ensure adherence to industry standards (ISO 27001, NIST, CIS, GDPR, SOC 2) and actively support security audits and regulatory compliance initiatives.

Communicate security risks and mitigation strategies to stakeholders, collaborate cross-functionally with IT, development, and operations to embed security across the organization, and manage multiple concurrent projects while applying strong analytical and problem-solving skills, working autonomously with excellent written and verbal communication.

Integrate secure coding practices into the SDLC; conduct SAST, DAST, and IAST; perform secure code reviews; and provide tailored remediation guidance to development teams.

Manage WAF and related security solutions against OWASP Top 10 threats (SQLi, XSS, insecure deserialization); enforce API security (authentication, authorization, encryption) alongside OAuth, JWT, and MFA; and conduct threat modeling and risk assessments to identify application weaknesses.

Embed security controls into CI/CD pipelines to automate vulnerability scanning and compliance checks; utilize SCA to track and mitigate third‑party dependency risks; implement secrets management to eliminate hardcoded credentials; and enforce zero‑trust principles across DevOps workflows.

Partner with development teams as an Application Security SME to foster a security‑first culture, promoting proactive ownership of security controls throughout software development.

Rapidly acquire skills in fast‑moving domains (AI, ML, Quantum); understand attacker exploit techniques and remediation methods; maintain expertise across infrastructure, network, endpoint, and mobile security; and provide technical mentorship to junior security engineers and analysts.

A minimum of eight (8) years of practical experience in various cybersecurity areas such Application Security, Vulnerability Management, Incident Response, Cloud Security.

A degree in the field of computer science.

A Relevant security certification such as CISSP, CCSP, Security+, CEH, CompTIA Security, etc.

Understanding of security standards and frameworks such as ISO27001, NIST and CIS, etc.

Strong knowledge of technical configurations from various operating systems and security solutions (Windows, Linux, Mac, IDS / IPS, DLP, SIEM, SOAR, WAF, VPNs, firewalls, encryption, etc.)

Excellent problem-solving and analytical skills to identify and resolve security issues effectively.

Excellent understanding of MITRE ATT&CK and MITRE ATLAS frameworks.

Good understanding of cloud security concepts and experience securing cloud-based infrastructure is an asset.

Proven project management and organizational skills, specifically managing multiple, concurrent projects.

Excellent written and verbal communication coupled with an ability to work with minimal supervision.

The target hiring salary for this position is $125,800 to $157,200. Placement within our salary range will be based on factors such as internal equity, market conditions, and the candidate’s experience, skills, and qualifications relevant to the role.

At CAAT, we believe innovation, passion, and purpose are ingredients for a great work environment. We’re incredibly proud of our people and the remarkable impact they have as catalysts for change. We’re committed to attracting and keeping great talent, which means competitive compensation, exceptional benefits, and an environment where people can grow and thrive. When you work with CAAT, you’ll enjoy:

Opportunities to Build a Better You: We never stand still. As we grow, so do you. Enjoy a place that provides endless opportunities to learn and master your skills while cultivating new ones.

Comprehensive & Holistic Care: Be at your best with a Total Rewards program that feeds and prioritizes your physical, mental, and financial wellness. From flexible work arrangements, comprehensive benefits to wellness incentives, and a defined benefit pension plan – we have you covered.

A Place to Collaborate and Win: We’ve built a lively environment where creativity and open communication thrive. It’s why we’re consistently recognized as one of ‘Canada’s Most Admired Corporate Cultures’ , one of ‘Greater Toronto’s Top Employers’ , and one of the ‘Best Places to Work’ .

DEIB at CAAT means we respect and value the broadest range of experiences, geographies, gender, ethnicities, backgrounds, and perspectives as key elements of our culture. Our vision is to provide an environment where employees can bring their best, professional, authentic, selves to work.

CAAT Pension Plan is an equal opportunity employer, and we will accommodate any needs under the Accessibility for Ontarians with Disabilities Act and the Ontario Human Rights Code. Hiring processes will be modified to remove barriers to accommodate those with disabilities, if requested. Should any applicant require accommodation through the application processes, please contact us at hr@caatpension.ca or call Human Resources at 416-673-9000 for assistance.