Inclusion without Exception

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to create a workforce that reflects the societies we operate in. Our continued commitment to Culture and Diversity is reflected in our people stories across our workforce and implemented through equitable workplace policies and processes.

Tata Consultancy Services (BSE: 532540, NSE: TCS) is the technology partner of choice for industry-leading organizations worldwide. Since its inception in 1968, TCS has upheld the highest standards of innovation, engineering excellence and customer service.

It has set an aspiration to become the world's largest AI-led technology services company and is enabling its clients to transform themselves across the full AI stack, from infrastructure to intelligence.

Rooted in the heritage of the Tata Group, TCS is focused on creating long term value for its clients, its investors, its employees, and the community at large. With a highly skilled workforce spread across 56 countries and 194 service delivery centers across the world, the company has been recognized as a top employer in six continents. With the ability to rapidly apply and scale new technologies, the company has built long term partnerships with its clients. Many of these relationships have endured into decades and navigated every technology cycle, from mainframes in the 1970s to artificial intelligence today.

Security Architect to assure enterprise security architecture with a focus on the review and authorship of Architecture Decision Records (ADRs) and Security Architecture Review Board (SARB) submissions. The role blends deep technical acumen with emerging expertise in Generative AI (GenAI)and Agentic systems, ensuring secure design, governance, and responsible adoption of intelligent automation within the enterprise.

• Architecture Review & Advisory Lead security reviews of solution and domain architectures, ADRs, and AI-enabled platforms.

• Assess GenAI and agentic solution designs for model security, data protection, prompt integrity, provenance, and safe orchestration of agents.

• Evaluate proposals for alignment with enterprise standards, regulatory expectations, and risk tolerance.

• Produce actionable review comments with traceable recommendations, covering both traditional and AI-driven architectures.

• Authoring & Governance Author and maintain ADRs, patterns, and reference architectures—including those covering GenAI system integration, LLM usage, and multi-agent frameworks.

• Ensure architectural documentation expresses the problem space, options, controls, and trade-offs clearly and defensibly.

Promote structured architectural reasoning supported by both human and GenAI-assisted analysis

• Architecture Review & Advisory Lead security reviews of solution and domain architectures, ADRs, and AI-enabled platforms.

• Assess GenAI and agentic solution designs for model security, data protection, prompt integrity, provenance, and safe orchestration of agents.

• Evaluate proposals for alignment with enterprise standards, regulatory expectations, and risk tolerance.

• Produce actionable review comments with traceable recommendations, covering both traditional and AI-driven architectures.

• Authoring & Governance Author and maintain ADRs, patterns, and reference architectures—including those covering GenAI system integration, LLM usage, and multi-agent frameworks.

• Ensure architectural documentation expresses the problem space, options, controls, and trade-offs clearly and defensibly.

• Promote structured architectural reasoning supported by both human and GenAI-assisted analysis workflows.

• GenAI & Agentic Security -Define and assess controls for GenAI systems, including: Model access, data boundary, and prompt injection defenses.

• Guardrails for AI agents performing autonomous actions or multi-step reasoning.Secure orchestration, isolation, and human oversight mechanisms.

• Evaluate the security of agent frameworks, LLM pipelines, and model-hosting platforms (e.g., Vertex AI, Azure OpenAI).

• Contribute to enterprise policy for responsible AI use and GenAI-assisted development.

Technical Leadership

• Provide domain expertise in application, cloud, and data security—augmented by AI security design considerations.

• Support teams in safely embedding GenAI copilots, RAG systems, and autonomous agents within business processes.

• Lead threat modeling for composite systems where GenAI interacts with APIs, data stores, and user environments.

• Continuous Improvement & Automation Use and refine GenAI tools for document review, security design assistance, and ADR quality assurance.

• Develop reusable prompts, review heuristics, and decision frameworks that enhance SARB throughput and consistency.

• Mentor peers in human-AI collaborative authoring, emphasizing accountability and verification of AI output.

• Core Competencies Enterprise security architecture (SABSA, TOGAF, NIST CSF).

• GenAI systems architecture, LLM lifecycle, and model governance.AI security patterns (threat modeling for LLMs, data leakage prevention, agent control).

• Strong authorship and analytical writing—clear articulation of decisions and consequences.

• Familiarity with tools for architectural diagramming, review automation, and GenAI-assisted design (e.g., LangChain, OpenAI GPT, Guardrails AI).

Broad experience across cloud, data, application, and API security domains.

Generic Skills if any:

• Application security team focusing on threat modeling, security architecture

• Work with application teams and complete threat model(s)

• Develop and deliver security patterns

• Provide on-demand support to application team for their threat model

• Research and write up Architecture decision records

• Develop API on need basis

Tata Consultancy Services Canada Inc. is committed to meeting the accessibility needs of all individuals in accordance with the Accessibility for Ontarians with Disabilities Act (AODA) and the Ontario Human Rights Code (OHRC). Should you require accommodation during the recruitment and selection process, please inform Human Resources.

Thank you for your interest in TCS. Candidates that meet the qualifications for this position will be contacted within a 2-week period. We invite you to continue to apply for other opportunities that match your profile.

Location

Toronto, ON

Job Function

TECHNOLOGY

Role

Engineer

Job Id

413857

Desired Skills

Artificial Intelligence | Machine Learning | Network Security | Machine Intelligence