Head of Infrastructure & Security responsible for cloud infrastructure on GCP and security programs. Leading SaaS development and technical teams at Rebus and Longbow Advantage.
About the role
- Senior Security Advisor at Intact, performing threat modelling and collaborating with cross-functional teams on security solutions. Requires extensive IT experience and security expertise.
Responsibilities
- Perform structured threat modelling (e.g., STRIDE, MITRE ATT&CK, kill chain, attack trees, misuse/abuse cases) for applications, systems, and architecture patterns.
- Work with data flow diagrams (DFDs), and architecture diagrams for new and existing systems.
- Identify assets, trust boundaries, entry points, and potential attack paths.
- Assess the likelihood and impact of identified threats, and assign inherent and residual risk ratings.
- Translate threat modelling outcomes into clear security requirements and recommended controls.
- Document control gaps and track remediation activities through to closure.
- Collaborate with product, architect, developers, and engineers to support solution design by reviewing proposed architectures, patterns, and design decisions for security implications and providing recommendations.
- Work with stakeholders to integrate threat modelling into product development workflows (e.g., SDLC, Agile, project delivery) across the organization.
- Participate in secure code reviews to support security requirements and threat mitigations.
- Plan and facilitate threat modelling workshops.
- Communicate complex technical risks in clear, business-relevant language to both technical and non-technical stakeholders.
- Contribute to the development and continuous improvement of threat modelling methodologies, templates, and tooling.
- Support incident response and post-incident reviews by mapping exploited paths back to threat models and identifying improvements.
- Maintain an up-to-date understanding of the threat landscape, including tactics, techniques, and procedures (TTPs), including those relevant to AI-related technologies.
- Apply the Maestro framework (or similar) to structure and standardize threat modelling activities for use cases involving AI agents.
Requirements
- Bachelor’s degree in computer science, or any combination of equivalent education and experience
- Minimum ten (10) years of experience in information technology, including at least five (5) years in information security, with demonstrated experience in one or more of the following areas: application/cloud security, security architecture, threat modelling or risk assessment, threat intel, incident response, SOC, SIEM, vulnerability management, and red teaming or penetration testing
- Strong knowledge of information security management principles and practices
- Strong ethical principles and understanding of business and information security ethics
- Good knowledge of common security vulnerabilities of web and cloud applications and operating techniques from sources such as SANS, OWASP Top 10 and Cloud Security Alliance (CSA)
- Relevant certifications include (but are not limited to): CISSP, CISA, CISM, CGEIT, CRISC, GSEC, GISP, CCSP, SSCP, CSSLP, OSCP, SABSA, CEH, GCIH, GCTI, GCFE
- Excellent oral and written communication skills – Need to interact on a regular basis with colleagues across the country
- Positive attitude, team spirit and eagerness to learn
- Critical mind
- Experience working in a Security Operations Centre
- Master the digital investigation concepts such as the chain of custody and the digital evidence
- Demonstrated commitment to training, self-learning and maintaining proficiency in the technical cybersecurity domain
- Experience with threat modelling tools is an asset (e.g., Microsoft Threat Modeling Tool, IriusRisk, Threat Dragon, in-house tools)
- Experience working with diagramming tools is an asset (e.g., draw.io , Lucidchart, Visio) or code-based diagrams (e.g., PlantUML)
- Proficiency in English is required; fluency in French is a plus.
- No Canadian work experience required however must be eligible to work in Canada.
Benefits
- Flexible work arrangements and a hybrid work model
- Possibility to purchase up to 5 extra days off per year
- Multiple benefits offered to support physical and mental wellbeing, including telemedicine, Wellness account and much more
- Share plan & other savings: up to 12% of salary or even more (ask how you could earn guaranteed income for life)
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