Senior Security Architect - Zero Trust & Cloud

Chartwell Retirement Residences; Mississauga; Hybrid; CAD 140,000 - 190,000; Full time

Benefits offered by this job

Hybrid work arrangement

Office in Mississauga

Job summary

Chartwell Retirement Residences is seeking a Security Architect to lead the Information Security team. You will define enterprise security architecture strategy, translate risks into scalable designs across identity, cloud, network, and endpoints, and act as the security design authority for initiatives.

This is a hands-on role setting standards while actively designing in platforms and partnering with security, infrastructure, and application teams to implement architectures.

Qualifications

• Bachelor’s degree in Computer Science or related field.
• Security certifications such as CISSP, CISA, CSIM, CRISC.
• 10+ years in information security with 5+ years in security architecture or senior security engineering.
• Strong knowledge of Entra ID/Azure AD, AD FS, federation, MFA and privileged access management.
• Experience with zero-trust network architecture and enterprise security design.

Responsibilities

• Own and evolve enterprise security architecture, reference architectures, and design standards.
• Lead security design for identity and access management across AD, Entra ID, and federation.
• Mature network security architecture with secure access and least-privilege models.
• Define and maintain security posture for Microsoft 365 and Azure baselines.
• Provide security design review for new projects, cloud services, and infrastructure changes.
• Lead design of Agentic AI security strategy and related controls.
• Develop and maintain security standards, patterns, and baselines.
• Collaborate with security operations on detection and response architecture.
• Assess third-party/SaaS security as part of vendor risk processes.
• Contribute to incident response and translate lessons into architecture.
• Communicate decisions to technical teams and executives.

Skills

Information security

Security architecture

Zero Trust

Identity & access management

Entra ID

ADFS

MFA

Threat modeling

Communication skills

Education

University/College degree in Computer Science

Security certification (CISSP, CISA, CSIM, CRISC)

Tools

Entra ID / Azure AD

Microsoft 365 Defender

Purview

CrowdStrike Falcon

SSE/SASE technologies

Job description

Chartwell Retirement Residences is seeking a Security Architect to lead the Information Security team. You will define enterprise security architecture strategy, translate risks into scalable designs across identity, cloud, network, and endpoints, and act as the security design authority for initiatives.

This is a hands-on role setting standards while actively designing in platforms and partnering with security, infrastructure, and application teams to implement architectures.