Computer security Jobs in Old toronto, ON

Job Type: Permanent
Work Model: Hybrid
Reference code: 133154
Primary Location: Toronto, ON
All Available Locations: Calgary, AB; Edmonton, AB; Halifax, NS; Ottawa, ON; Toronto, ON; Vancouver, BC; Victoria, BC

Our Purpose

At Deloitte, our Purpose is to make an impact that matters. We exist to inspire and help our people, organizations, communities, and countries to thrive by building a better future. Our work underpins a prosperous society where people can find meaning and opportunity. It builds consumer and business confidence, empowers organizations to find imaginative ways of deploying capital, enables fair, trusted, and functioning social and economic institutions, and allows our friends, families, and communities to enjoy the quality of life that comes with a sustainable future. And as the largest 100% Canadian-owned and operated professional services firm in our country, we are proud to work alongside our clients to make a positive impact for all Canadians.

By living our Purpose, we will make an impact that matters.

• Have many careers in one Firm.
• Enjoy flexible, proactive, and practical benefits that foster a culture of well-being and connectedness.
• Learn from deep subject matter experts through mentoring and on the job coaching

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As a seasoned network security architect, you will lead a team of consultant, be a trusted advisor to drive deep technical advisory engagements for Deloitte’s clients. Leverage your deep understanding of advanced network architectures to advise, architect and detailed design and build-out of robust network security architectures tailored on converged network and security platforms (e.g., SASE).

What will your typical day look like?

A typical day involves balancing multiple client engagements, where you’ll design and review network security architectures, participate in project meetings, and provide expert guidance to both internal teams and external stakeholders. You’ll collaborate with project managers, engineers, and client representatives to deliver tailored network security solutions across concurrent projects, leading technical workshops and assessing client environments. Your responsibilities will include analyzing network security requirements, developing technical solutions, conducting network security risk assessments, and presenting findings to clients. Additionally, you’ll contribute to proposals, prepare documentation, mentor junior team members, and support pre-sales activities. Staying current on emerging security threats and technologies, as well as engaging in knowledge-sharing sessions, will round out your dynamic and client-facing role.

About the team

At Deloitte, embedding technology into everything we do is how we stay current, innovative and ahead of our competition. We look for our Security leaders to continually challenge and grow their own technical expertise and business skills, architect technical solutions.

The Security Architecture Team is a collaborative group of experienced professionals dedicated to designing and implementing robust security solutions for our clients. We work across multiple concurrent projects, partnering closely with internal specialists, project managers, and external client stakeholders to address complex security challenges. Our team leads technical workshops, conducts thorough risk assessments, and develops tailored security architectures that align with client business objectives and industry best practices.

We provide expert guidance throughout project lifecycles, from initial requirements gathering to solution deployment and ongoing support. Our security architects are trusted advisors, translating technical risks into actionable recommendations and clear business terms for clients. We foster a culture of continuous learning, knowledge sharing, and mentorship, ensuring we stay ahead of emerging threats and technologies. By combining strategic vision with hands-on expertise, the Security Architecture Team plays a critical role in delivering secure, resilient, and compliant solutions for our clients in a dynamic professional services environment.

Enough about us, let’s talk about you

Technical Expertise

• Advanced design and build of secure, converged network architectures across hybrid environments (cloud, on‑prem, SaaS).
• Proficiency with firewalls, VPNs, IDS/IPS, network segmentation; deep knowledge of Zero Trust, SASE/SSE, SD‑WAN, NAC, micro‑segmentation.
• Expert networking fundamentals (BGP, OSPF, 802.1X); 5+ years delivering end‑to‑end network/security transformations and platforms.

Cloud Security

• Hands‑on with cloud‑native network security in Azure, AWS, GCP; secure migration and IAM best practices.
• Familiarity with CSPM and compliance frameworks (CIS, NIST 800‑53/207, ISO 27001).

Network Security Architecture

• Define and maintain secure architectures for cloud, on‑prem, and hybrid; translate business needs into secure solutions.
• Evaluate and integrate security technologies (NGFW, SASE, SD‑WAN, NAC, etc.) with minimal disruption.
• Lead assessments (risk, vuln, pen testing) and oversee control integration.

Certifications

• Industry and cloud certs (e.g., CISSP, CISM, CCSP, AWS/Azure security/architect); vendor certs (Palo Alto, Zscaler/Netskope, Check Point, Cisco).

Consulting, Communication, Leadership

• Strong client‑facing skills; manage multiple projects; excellent presentation/documentation.
• Mentor teammates; collaborate across functions; solid project management and organization.
• Commitment to continuous learning and certification renewal.

AI Security Architect Focus

• Design secure, scalable AI/ML architectures on Azure (API Mgmt, Foundry, OpenAI, Copilot) and Databricks (Unity Catalog, MLflow).
• Lead AI/ML threat modeling (model inversion, data poisoning, adversarial, prompt injection) and controls for agentic AI (tool abuse, uncontrolled behavior).
• Govern MCP servers and contextual data; embed MLSecOps/shift‑left controls across the ML lifecycle.
• Maintain AI reference architectures, standards, and patterns for security, privacy, and observability.
• Provide strategic advisory aligning AI capabilities with business goals; partner across architecture, security, compliance, and privacy.
• Track emerging AI threats; build AI governance and observability capabilities.

Total Rewards

The salary range for this position is $90,000 - $175,000, and individuals may be eligible to participate in our bonus program. Deloitte is fair and competitive when it comes to the salaries of our people. We regularly benchmark across a variety of positions, industries, sectors, targets, and levels. Our approach is grounded on recognizing people's unique strengths and contributions and rewarding the value that they deliver.

Our Total Rewards Package extends well beyond traditional compensation and benefit programs and is designed to recognize employee contributions, encourage personal wellness, and support firm growth. Along with a competitive base salary and variable pay opportunities, we offer a wide array of initiatives that differentiate us as a people-first organization. On top of our regular paid vacation days, some examples include: $4,000 per year for mental health support benefits, a $1,300 flexible benefit spending account, firm-wide closures known as "Deloitte Days", dedicated days of for learning (known as Development and Innovation Days), flexible work arrangements and a hybrid work structure.

Our promise to our people: Deloitte is where potential comes to life.

Be yourself, and more.

We are a group of talented people who want to learn, gain experience, and develop skills. Wherever you are in your career, we want you to advance.

You shape how we make impact.

Diverse perspectives and life experiences make us better. Whoever you are and wherever you’re from, we want you to feel like you belong here. We provide flexible working options to support you and how you can contribute.

Be the leader you want to be

Some guide teams, some change culture, some build essential expertise. We offer opportunities and experiences that support your continuing growth as a leader.

Have as many careers as you want.

We are uniquely able to offer you new challenges and roles – and prepare you for them. We bring together people with unique experiences and talents, and we are the place to develop a lasting network of friends, peers, and mentors.

The next step is yours

At Deloitte, we are all about doing business inclusively – that starts with having diverse colleagues of all abilities. Deloitte encourages applications from all qualified candidates who represent the full diversity of communities across Canada. This includes, but is not limited to, people with disabilities, candidates from Indigenous communities, and candidates from the Black community in support of living our values, creating a culture of Diversity Equity and Inclusion and our commitment to our AccessAbility Action Plan, Reconciliation Action Plan and the BlackNorth Initiative.

We encourage you to connect with us at accessiblecareers@deloitte.ca if you require an accommodation for the recruitment process (including alternate formats of materials, accessible meeting rooms or other accommodations) or indigenouscareers@deloitte.ca for any questions relating to careers for Indigenous peoples at Deloitte (First Nations, Inuit, Métis).

When you apply, we will review your application using Deloitte's Global Talent Standards to ensure a consistent recruitment experience. Our recruitment advisors and hiring teams will utilize human screening combined with AI technology to help identify the skills and qualities that matter most to our business, while safeguarding your privacy and using AI responsibly.

Deloitte Canada has 20 offices with representation across most of the country. We acknowledge that Deloitte offices stand on traditional, treaty, and unceded territories in what is now known as Canada. We recognize that Indigenous Peoples have been the caretakers of this land since time immemorial, nurturing its resources and preserving its natural beauty. We acknowledge this land is still home to many First Nations, Inuit, and Métis Peoples, who continue to maintain their deep connection to the land and its sacred teachings. We humbly acknowledge that we are all Treaty people, and we commit to fostering a relationship of respect, collaboration, and stewardship with Indigenous communities in our shared goal of reconciliation and environmental sustainability.