Director, Data Science

Mastercard Inc.; Toronto; On-site; CAD 154,000 - 247,000; Full time

Job summary

Mastercard is seeking a Director of Data Science to lead AI/ML initiatives for Consumer Clarity. You will define the data science strategy, guide execution across business initiatives, and scale solutions to reduce disputes and improve consumer clarity. The role requires senior leadership, stakeholder management, and deep ML expertise.

You will mentor a high-performing team, collaborate with product and engineering, and drive measurable business impact in a regulated fintech setting.

Qualifications

• Master’s degree required; PhD preferred in a quantitative field.
• Proven experience delivering enterprise-scale AI/ML solutions.
• Experience in regulated financial environments and data governance.

Responsibilities

• Define and execute the data science vision and roadmap for product enhancements.
• Lead and mentor a high-performing data science team across initiatives.
• Partner with product, engineering, and business leaders to shape requirements and drive outcomes.
• Build and scale AI/ML models to reduce disputes and improve customer clarity.
• Ensure governance, security, and compliance across cloud environments.

Skills

Leadership & strategy

Python

Stakeholder management

Communication

NLP

GenAI / multi‑modal AI

SQL

ML framework literacy

Education

Master's degree

PhD (preferred)

Tools

Azure ML

Snowflake

Spark

PyTorch

TensorFlow

Scikit-learn

Job description

Our Purpose 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.

Title and Summary Director, Data Science Mastercard is seeking a Director of Data Science to lead the development and delivery of advanced AI and machine learning solutions for Consumer Clarity — Mastercard’s product that enhances consumer purchase experiences. This is a senior leadership role, responsible for defining the data science strategy, guiding execution across multiple business initiatives, and ensuring solutions are delivered at scale to support chargeback reduction, dispute resolution, and consumer clarity. The successful candidate will combine technical depth with strong leadership and stakeholder management skills to drive measurable business impact.

Responsibilities

• Leadership & Strategy
  • Define and execute the data science vision and roadmap for the product enhancement, aligning 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.
• Product Impact
  • 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 that leverage 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.
• Technical & Operational Excellence
  • 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.
• Innovation & Thought Leadership
  • 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.

All About You

• 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.

Nice to Have

• 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.

#AI 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 [e-mail] 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.

Corporate Security Responsibility 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.

In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in Canada, the successful candidate will be offered a competitive pay based on location, experience and other qualifications for the role and may be eligible to participate in a discretionary annual incentive program. This posting reflects one or more current openings on our team.

Pay Ranges Toronto, Canada: $154,000 - $247,000 CAD

Everyone wants easier ways to pay; we invent them. Checkout lines are slow; we speed them along. Merchants want more sales; we give them data and insights. People need financial access; we connect them. Corporate purchasing is complicated; we make it simple. Commuters are busy; we speed them on their way. Governments need greater efficiencies; we help create them. Small businesses are virtual; we give them access to a world of buyers. Retailers want to fight fraud; we provide the tools.