Microsoft Corporation is actively seeking an exceptional professional to join our organization as a Conseiller(ère) principal(e) en sécurité / Senior Security Engineer within the Penetration Testing division. Positioned at the core of Microsoft’s technological innovation, this role offers direct involvement in mission-critical engineering initiatives, planetary-scale cloud services, and next-generation product architectures.

Role Overview & Strategic Impact

As a Conseiller(ère) principal(e) en sécurité / Senior Security Engineer based in Montreal, Canada, you will play an integral role in architecting, engineering, and delivering transformative technology solutions. Operating within Microsoft’s Penetration Testing practice, your efforts will directly shape the scalability, performance, and security of software systems and platforms trusted by billions of users worldwide.

Microsoft’s enduring mission is to empower every person and every organization on the planet to achieve more. Team members thrive within an inclusive culture grounded in a growth mindset, cross-team empathy, and uncompromising customer focus. In this position, you will collaborate with industry-leading engineers, researchers, and product leaders to solve complex technical problems at unprecedented scale.

Technical Domain: Hyperscale Cloud Architecture & Frontier AI Integration

Operating at the nexus of planetary-scale cloud infrastructure, Microsoft Azure powers the foundation for enterprise digital transformation and generative AI breakthroughs. Engineers and architects in this domain design, deploy, and optimize highly resilient, multi-region cloud services, intelligent API pipelines, and secure data topologies. Leveraging deep integrations with Azure OpenAI, foundational LLMs, and distributed microservices, team members accelerate production-grade intelligence while upholding strict standards for reliability, zero-trust security, and operational latency.

Professionals in this specialization combine strong computer science fundamentals with practical, real-world systems engineering. Whether delivering distributed microservices, designing custom silicon interconnects, managing physical datacenter infrastructure, or scaling AI-powered customer workflows, you will operate within a mature engineering ecosystem supported by Microsoft’s global technical community.

Key Responsibilities & Scope of Work

In this capacity, your daily priorities and core technical contributions will center on the following key operational deliverables:

• Mener des recherches sur les vulnérabilités et des évaluations de sécurité offensive dans Windows, en utilisant notamment l’audit de code, le fuzzing, les tests d’intrusion et l’exploitation de vulnérabilités afin d’identifier des failles, de nouveaux vecteurs d’attaque et des risques de sécurité complexes, puis de développer des mécanismes de défense durables.
• Collaborer avec les communautés de sécurité internes et externes afin de suivre l’évolution des vulnérabilités et des techniques d’attaque, et d’identifier des occasions de renforcer la sécurité de Windows.
• Examiner l’architecture des produits, les fonctionnalités et le code natif afin d’identifier les vulnérabilités et les risques architecturaux à l’aide de techniques d’analyse de sécurité manuelles et automatisées.
• Développer des preuves de concept d’exploitation et des mesures d’atténuation évolutives permettant de corriger les vulnérabilités identifiées ainsi que des catégories plus larges de problèmes de sécurité.
• Concevoir et développer des outils de sécurité réutilisables et des solutions d’automatisation afin d’améliorer l’efficacité, la cohérence et la qualité des évaluations de sécurité et de la découverte de vulnérabilités.
• Collaborer avec les équipes de développement de produits Windows afin d’intégrer la sécurité à la conception des produits et de résoudre les vulnérabilités et les risques de sécurité identifiés.
• Conduct vulnerability research and offensive security assessments across Windows, using techniques such as code auditing, fuzzing, penetration testing, and exploitation to identify vulnerabilities and no
• Maintain rigorous code quality, comprehensive automated test coverage, and security compliance throughout all phases of software delivery.
• Participate actively in technical design reviews, operational post-mortems, and architectural discussions across global engineering cohorts.

Candidate Profile & Experience Requirements

Candidates for the Conseiller(ère) principal(e) en sécurité / Senior Security Engineer position are evaluated based on their practical experience, technical depth, and demonstrated track record of problem-solving:

• Professional Background: Minimum of 3 years (36 months) of verified experience directly relevant to penetration testing or related technical specializations.
• Master’s Degree in Statistics, Mathematics, Computer Science, or related field AND 3+ years experience in security or related field OR Bachelor’s Degree in Statistics, Mathematics, Computer Science, or related field AND 4+ years experience in security or related field OR equivalent experience.
• Master’s Degree in Statistics, Mathematics, Computer Science, or related field AND 6+ years experience in security or related field OR Bachelor’s Degree in Statistics, Mathematics, Computer Science, or related field AND 8+ years experience in security or related field OR equivalent experience.
• 5+ years of experience in software engineering, security engineering, or a related technical field.
• Demonstrated experience in security research, particularly vulnerability discovery.
• Technical Competence: Demonstrated mastery of programming environments, distributed systems, modern cloud infrastructure, or specialized analytical methodologies relevant to the domain.
• Cross-Functional Leadership: Strong written and verbal communication skills, with an established ability to articulate complex technical architectures clearly to engineering peers and executive stakeholders.
• Culture & Values: Demonstrated alignment with Microsoft’s core values of respect, integrity, and accountability, alongside a proactive dedication to diversity and inclusion.

Work Environment, Workplace Schedule & Location Structure

This position is designated with an official location in Montreal, Canada. Work arrangements for this role are structured as Onsite Model (Montreal, Canada). Microsoft provides modern, accessible work environments equipped with state-of-the-art developer tooling, ergonomic facilities, and collaborative hybrid infrastructure.

Compensation, Total Rewards & Comprehensive Benefits

Microsoft offers a comprehensive, highly competitive total rewards framework designed to support employees’ personal, professional, and financial well-being:

• Estimated Annual Base Salary: CAD 120,000 – CAD 210,000 per annum (exact compensation determined based on verified qualifications, technical evaluation, specialized experience, and local market benchmarks).
• Incentive & Equity Rewards: Eligibility for annual performance-based cash bonuses and Microsoft restricted stock units (RSUs).
• Comprehensive Healthcare: Premium medical, dental, and vision coverage, including mental health support programs and wellness reimbursements.
• Retirement & Financial Security: Robust 401(k) / national retirement savings plans with generous company matching contributions, alongside financial planning resources.
• Time Off & Work-Life Harmony: Generous paid time off, comprehensive parental leave programs, public holiday allowances, and caregiver leave support.
• Growth & Learning: Unlimited access to Microsoft Learn, internal technical conferences, tuition assistance, and structured career mobility pathways across worldwide business units.

Application Process & Requisition Reference

This position is actively open and monitored by Microsoft Talent Acquisition. In alignment with corporate hiring policies, applications are accepted on an ongoing basis with no rigid pre-determined closing deadline until a qualified candidate is formally selected (Open Until Filled).

To submit your application, select the Apply Now button on this listing to navigate directly to the official Microsoft Careers requisition portal. When submitting your candidacy, reference Requisition ID 200056168. Ensure your resume and supporting documentation highlight your relevant technical deliverables, system achievements, and professional qualifications.