Location: Toronto, ON, Hybrid 3 days on-site
Language: English, strong written and verbal communication required
Background Check Requirement: Reliability Clearance

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About the Opportunity

Our client, a well-established organization operating in a highly regulated environment, is seeking a Cybersecurity Engineer to strengthen and evolve their endpoint and network security posture. This is a chance to work on mission-critical systems that protect sensitive information and infrastructure.

You will collaborate closely with SOC, Incident Response, and cross-functional IT teams to design, deploy, and continuously enhance advanced security controls. Your work will directly impact the organization’s ability to detect, prevent, and respond to modern threat actor behaviour across diverse environments.

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What’s In It for You

• A permanent, salaried role offering stability and long-term growth
• Exposure to enterprise-scale security tools and evolving threat landscapes
• A collaborative culture that values innovation, accountability, and continuous improvement
• Opportunities to contribute to security architecture, detection engineering, and attack simulation capabilities
• Participation in meaningful, high-impact cybersecurity initiatives

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Your Responsibilities

• You’ll deploy and manage endpoint, network, and SIEM security solutions, ensuring coverage across all assets and adherence to regulatory and compliance standards
• In this role, you’ll build and tune threat detection use cases aligned to threat actor behaviours in partnership with cybersecurity peers
• You’ll collaborate with cross-functional teams to embed security by design into systems and resource deployments
• You’ll configure and continuously test endpoint and network security controls against the evolving threat landscape
• You’ll support SOC and Incident Response teams in responding to active threats
• You’ll participate in penetration testing as the SME for endpoint and network security solutions
• You’ll design and maintain attack simulation infrastructure to validate control effectiveness

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Skills and Qualifications

• 5+ years of experience in a cybersecurity engineering role
• Hands-on experience with EDR, XDR, MDR, NDR and related endpoint and network security technologies
• Proven experience managing and transforming security solutions, including migrations and post-M&A tool consolidation
• Strong knowledge of attack vectors, vulnerabilities, and TTPs aligned to MITRE ATT&CK
• Experience engineering detection rules to support SOC and Incident Response teams
• Excellent understanding of network protocols, TCP/IP, and systems hardening
• Familiarity with AWS, Azure, or GCP cloud security concepts
• Government of Canada Secret Level II clearance or eligibility required
• Relevant certifications such as CISSP, CCSP, CEH, OSCP, CISM, or CISA preferred
• Willingness to participate in a 24x7x365 on-call rotation
• Strong collaboration, independence, attention to detail, and communication skills

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Note from the Hiring Manager

“We’re looking for someone who takes pride in building resilient security controls and isn’t afraid to challenge the status quo. If you’re passionate about staying ahead of threat actors and enjoy working as part of a highly collaborative team, this role will give you the platform to make a real impact.”

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Why Partner with Altis

If you’ve never worked with a staffing agency before, we make it easy. We work with top employers across Canada who have great jobs to fill, each vetted and verified by our team. When you apply for a job with Altis, we get to know you as a candidate and learn what your strengths are. Then, if you’re a solid match, we handle all the logistics, advocating for you as a candidate for the role, providing access to coaching and connecting you directly with the hiring manager. And rest assured, all our services are free of cost for candidates.

We appreciate the time and effort all applicants invest in their submissions. Please note that only candidates shortlisted for this role will be contacted directly. However, your profile will remain under consideration for future opportunities that align with your experience and career goals. All qualified applicants will receive fair consideration for employment. We welcome individuals of all backgrounds, experiences, and identities including those who identify as women, members of racialized groups, Indigenous Peoples, persons with disabilities, and 2SLGBTQIA+ communities. If you require an accommodation, please review our accessibility policy and reach out to our accessibility officer with any questions. Our human recruiters review all applications and always make the final hiring decision. On occasion, we also use AI-assisted tools to help review applications.