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About the Role
Mastercard is seeking a Principal Data Scientist to lead the development and delivery of advanced AI and machine learning solutions for the Ethoca product, enhancing consumer purchase experiences. This senior technical role involves defining data science product design, guiding execution, and ensuring scalable solutions for chargeback reduction, dispute resolution, and consumer clarity.
Responsibilities
- Design and execute the data science vision and roadmap for product enhancement, aligning technical initiatives with business priorities and product strategy.
- Lead, mentor, and inspire a high-performing data science team, fostering a culture of technical excellence, innovation, and collaboration.
- Partner with product, engineering, and business leaders to shape requirements and deliver data-driven capabilities that improve customer experience and reduce disputes.
- Build and scale AI/ML models that enrich merchant data, enhance transaction clarity, and reduce chargeback/dispute rates.
- Guide the design and implementation of solutions leveraging generative AI, multi-agent systems, NLP, and computer vision to enhance purchase experiences.
- Monitor and continuously improve deployed models to ensure accuracy, reliability, and compliance in a regulated financial environment.
- Provide hands-on technical leadership in model development, deployment, and governance across cloud environments (Azure, Snowflake, Spark).
- Ensure compliance with Mastercard’s data governance, security, and privacy requirements.
- Review and oversee code, models, and engineering components developed by the team to maintain enterprise-grade standards.
- Drive exploration of cutting-edge technologies, including generative AI and agentic frameworks, to strengthen the product offering and Mastercard technical competence.
- Represent Mastercard’s AI leadership through patents, publications, conference presentations, and academic partnerships.
- Incubate prototypes and proofs-of-concept to evaluate new methods before scaling into production.
Requirements
- Proven experience leading data science teams and delivering enterprise-scale AI/ML solutions.
- Deep expertise in supervised, unsupervised, and generative AI methods, with strong understanding of their mathematical foundations.
- Hands-on background in NLP, information extraction, or computer vision or multi-modal AI applied to real-world business challenges.
- Strong track record of translating complex data problems into scalable, measurable business outcomes.
- Proficiency in Python, ML frameworks (Scikit-learn, PyTorch, TensorFlow), SQL, Spark, and Azure ML/Snowflake.
- Experience working in highly regulated industries, with an emphasis on data governance and compliance.
- Skilled at engaging with senior stakeholders, presenting technical results to diverse audiences, and driving alignment across functions.
- Master’s degree required; PhD preferred.
- Experience in payments, FinTech, or consumer transaction data.
- Prior patents or publications in AI/ML.
- Demonstrated success applying GenAI or multi-agent systems in production environments.
Skills
- AI
- Machine Learning
- Generative AI
- Multi-agent systems
- NLP
- Computer Vision
- Python
- Scikit-learn
- PyTorch
- TensorFlow
- SQL
- Spark
- Azure ML
- Snowflake
- Data Governance
- Data Security
- Data Privacy
Location
- Toronto, Canada
Work Type
- Full-time
Experience Level
- Principal
- Senior
Education Level
- Master's degree
- PhD
Salary/Compensations
- $154,000 - $247,000 CAD
Benefits
- May be eligible to participate in a discretionary annual incentive program.
About the Company
- Mastercard powers economies and empowers people in 200+ countries and territories worldwide.
- Together with our customers, we’re helping build a sustainable economy where everyone can prosper.
- We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible.
- Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
- All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard’s security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
Equal Opportunity
- Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.
- We hire the most qualified candidate for the role.
- In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting.
- Do not include any medical or health information in this email.
- The Reasonable Accommodations team will respond to your email promptly.