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 settings. 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 conceptsEstablish AI-assisted development, evaluation,



and observability practicesSet technical direction from concept through deployment and releaseDesign experiments and prototypes to reduce technical risksCoach senior engineers and review critical technical designsRequirements:
Experience setting technical strategy under uncertaintyHands-on experience building Generative AI, LLM, or agentic applicationsKnowledge of AI/ML, analytics, data quality, privacy, and localizationExperience with LangGraph, OpenAI Agents SDK, or Codex SDKExpertise with Databricks, Snowflake, AWS, or AzureBring 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 Winnipeg
🏢 Mastercard
📍 Winnipeg