Shape AI architecture for Mastercard Foundry Research and Development in Toronto, guiding complex products with scalable solutions and technical strategy.
As a Senior Principal Software Engineer, you will define direction for ambiguous, early-stage concepts spanning technology stacks, data platforms, and environments. The work connects research, product development, and market validation while influencing engineering, product, and technology teams. You will apply Generative AI, LLMs, and agentic patterns to create current applications and responsible delivery practices.
Key Responsibilities: Define scalable architectures for complex early-stage product concepts
Establish AI-assisted development, evaluation, and observability practices
Set technical direction from concept through deployment and release




Design experiments and prototypes to reduce technical risks
Coach senior engineers and review critical technical designs
Requirements: Experience setting technical strategy under uncertainty
Hands-on experience building Generative AI, LLM, or agentic applications
Knowledge of AI/ML, analytics, data quality, privacy, and localization
Experience with LangGraph, OpenAI Agents SDK, or Codex SDK
Expertise with Databricks, Snowflake, AWS, or Azure
Bring AI architecture, data platform, and technical leadership expertise to Mastercard’s Toronto-based Foundry Research and Development team.

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📌 Senior Principal AI Architecture Engineer (Ontario)
🏢 Mastercard
📍 Ontario