Senior Security Architect

Venture outside the ordinary - TMX Careers

The TMX group of companies includes leading global exchanges such as the Toronto Stock Exchange, Montreal Exchange, and numerous innovative organizations enhancing capital markets.  United as a global team, we’re connecting cross-functionally, traversing industries and geographies, moving opportunity into action, advancing global economic growth, and propelling progress. Through a rich exchange of ideas, meaningful collaboration, and a nimble operating model, we're powering some of the nation's most critical systems, fueling capital formation and innovation, bringing increased opportunity to business visionaries, product ingenuity to consumers, and career exploration to our team.

Ready to be part of the action?

We are seeking a highly skilled and strategic Security Architect to define our enterprise technical guardrails and overarching security blueprints. In this role, you will champion the enterprise shift away from implicit network trust toward a robust Zero Trust Architecture. By developing reusable architectural templates, you will enable engineering teams to rapidly deploy secure infrastructure while minimizing design-time friction. As a key collaborator across internal security disciplines and external enterprise teams, you will integrate secure frameworks seamlessly into our overarching technology strategy.

Job Location: Hybrid (2-3 days in office) - based in Toronto, ON

Key Accountabilities

• Author and maintain critical technical requirements for enterprise infrastructure, including Active Directory hardening, Post-Quantum cryptographic posture, and the secure adoption of Generative AI platforms.
• Define comprehensive micro-segmentation principles, per-session access controls, and Zero Trust Network Access (ZTNA) requirements across the enterprise.
• Develop and maintain a comprehensive repository of pre-approved, reusable architectural templates to accelerate secure project delivery.
• Lead the technical security evaluations during M&A due diligence processes and engineer target-state integration blueprints.
• Assess emerging capabilities and vendor solutions to ensure the technology stack remains highly resilient against evolving threat vectors.
• Transform GRC (Governance, Risk, and Compliance) policies into practical technical standards.
• Partner closely with AppSec to establish secure coding standards, and integrate data classification matrices and data movement restrictions from Data Governance into all infrastructure and project designs.

Must Haves

• Post-secondary degree or diploma in Computer Science, Information Management, or a related technical field.
• 5+ years of dedicated experience in an information security-focused role, with a strong track record across security risk, design, or management.
• 5+ years of experience managing and designing complex cloud solutions, with deep proficiency primarily in AWS, GCP, and Azure.
• 3+ years of experience operating in a dedicated IT Architecture role.
• Proven, applied knowledge of TOGAF models and the Zachman framework.
• Demonstrated success managing the complete lifecycle of technology solutions from initial ideation to ultimate sunsetting.
• Excellent written and verbal communication skills, with a proven ability to collaborate effectively across multidisciplinary teams.
• Self-motivated, flexible, and capable of working both independently and as part of a dedicated, fast-paced team.

Nice to Haves

• Relevant industry certifications.

Salary Range: $140K - $150K/year CAD. Please note that the salary range included is a guideline only. The salary offered may vary based on factors, including, but not limited to, the successful candidate’s relevant knowledge, skills, and experience.

The recruiting efforts for this role are intended to fill a vacant position.

In the market for…

Excitement - Explore emerging technology and innovation, as well as ventures and digital finance that shape the future of global markets! Experience the movement of the market while grounded in the stability of close to 200 years of success.

Connection - With site hubs in some of the world’s most multicultural cities, we leverage our size and structure to create rich connections and belonging while experiencing powerful global impact through our work.

Impact - More than a platform, we use our talents to power mission-critical systems that drive global economic advancement, innovation, and growth. As well, our employee-led Team Impact spreads social good via our giving strategy.

Wellness - From empathetic leadership to a culture of flexibility and balance, we believe wellness at work creates the maximum yield and a stronger “we”. Plus, with a cloud-first and hybrid workstyle, as well as generous time-off and leaves, we support a life well lived! 

Growth - From a growth mindset in our work, to expansion in our business, TMX is home to action-takers energized by the achievement of ambitious growth.

Ready to enrich your career with impactful work, leaders who truly care, and the flexibility and programs to help you thrive as part of #TeamTMX ? Apply now.

Please note that our company is not currently sponsoring work permit applications and the applicant must be authorized to work in the country where this position is located. 

TMX is committed to creating and sustaining a collegial work environment in which all individuals are treated with dignity and respect and one which reflects the diversity of the community in which we operate. We provide accommodations for applicants and employees who require it.