Full-time Posted May 30, 2026
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Job Description

Become a Principal Data Scientist with Mastercard's R&D team in Toronto, Canada, focused on innovative product development. Leverage your expertise in machine learning and data analysis to drive impactful solutions.

As a Principal Data Scientist, you will lead critical data science initiatives and guide teams on best practices in statistical hypothesis testing and data organization. You will collaborate closely with AI/ML engineers to scale and deploy models while mentoring team members in innovative techniques and methodologies.

Key Responsibilities: • Lead high-priority data science and machine learning projects • Optimize models through validation and performance tuning • Collaborate with cross-functional teams for model deployment • Mentor team members on best practices and techniques • Innovate architectural designs for production systems

Requirements: • Proficient in Python and data science libraries like numpy and pandas • Experience with SQL, JSON, an...

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