Engineer II - AI Security

by TD Canada Trust

Reference #: R_1453997
Position Type: Regular, Full-time
Remote work options: No
Location: Toronto, Ontario
Date Posted: Jan 02, 2026
TD Canada Trust

Job Description

Job Description Summary

Our new AI Defense team provides focused development and testing in the AI space. We build security tools that incorporate AI based automation, test the security of applications that use AI, and vet third party AI tools.

As an Engineer II on our AI Defense team, you will help build, design and scale security applications including tools for security professionals and mock applications to test security applications against. You will create detailed documentation in support of our tools' users and document the results of our testing.

KEY ACCOUNTABILITIES

  • Design, build and implement tools for Penetration Testing, Red Teaming and ongoing evaluation of vulnerabilities in AI applications
  • Build mock AI Applications to test and understand both internal and third-party AI Security applications
  • Analyze vendor and open-source applications
  • Scale tools to meet our customers where they are, e.g. Part of CI/CD
  • Fulfill and advance security best practices
  • Work with partners and customers to understand relevant business needs
  • Create clean and understandable documentation for tools, features and assessment results

Qualifications

  • Minimum 7 years programming production applications
  • Strong understanding of Python programming
  • Understanding of CI/CD
  • Experience troubleshooting production applications
  • Understanding of RESTful APIs and ability to extract, manipulate and update data in different formats (JSON, XML, CSV, HTML)
  • Scripting skills on Linux
  • Ability to establish and maintain effective working relationships with all levels of personnel including leadership, executives, clients, and vendors.
  • Ability to make engineering design decisions, efficiently build solutions, solves technical problems, and make improvements to our systems
  • Understanding of core security systems e.g. Authentication, encryption
  • Understanding of Azure Cloud and its networking concepts

Nice to Haves

  • Understanding of LLM fundamentals
  • Understanding of simple and advanced RAG uses
  • CISSP or equivalent

#li-tech

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