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Mastercard · Dublin, Ireland

# Senior Data Scientist

Dublin, Ireland Full-time Senior individual contributor Data & Analytics 

Listed on Mastercard’s official careers site. Posted October 28, 2026. Check that it is still open and apply there.
[Apply on Mastercard’s careers site →](https://mastercard.wd1.myworkdayjobs.com/CorporateCareers/job/Dublin-Ireland/Senior-Data-Scientist_R-293021-1)

[OpenNash Jobs](https://jobs.opennash.com/) / [Mastercard](https://jobs.opennash.com/companies/mastercard/) / Senior Data Scientist

## 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 Senior Data Scientist Senior Data Scientist, Test and Learn Overview The Services team is a key differentiator for Mastercard, providing cutting-edge products and services that help our customers. Focused on thinking big and scaling quickly around the globe, this agile team is responsible for end-to-end solutions for a diverse global customer base including issuers, acquirers, and merchants. Centered on data-driven technologies and innovation, these services include payments-focused consulting, loyalty and marketing programs, business experimentation and optimization (Test & Learn), and data-driven information and risk management services.

Test & Learn As a member of the Test & Learn team, you will pioneer industry-leading experimentation software which brings sophisticated analytic techniques to businesses and users around the world. We are rapidly building new products, improving existing products, and expanding the ways we deliver Test & Learn to our clients. We are looking for innovators who can execute and evolve our analytic strategy, tackling the big challenges of the future.

This role will focus on analytic research; pushing the boundaries for our analytics by finding ways to apply new data science methods to top business challenges and translating it into novel products, and scalable commercial solutions.

### Position Responsibilities

Drive the research of new functionality within an analytics platform used by the world's largest organizations to make critical, multi-million-dollar decisions.
- Work cross-functionally with product management to understand and solve customer needs requiring novel analytic solutions
- Work hand-in-hand with engineering teams to help guide the implementation of your analytic ideas into our products
- Collaborate with leaders across the business unit to identify problems and drive innovative solutions.

All

### About You

5+ years experience in data science OR equivalent graduate coursework. Experience of applying machine learning, causal inference, and/or generative and agentic AI to real world problems. Strong technical aptitude and ability to understand complex technical concepts, coupled with strong business acumen to identify applications of technology to solve commercial questions Experience applying innovative analytics to high volume datasets to influence business decisions Excellent communication and interpersonal skills, with the ability to effectively collaborate with cross-functional teams and stakeholders.

Exceptional project management and problem-solving ability, with a focus on setting ambitious and achievable goals, managing timelines across multiple workstreams, and prioritizing risk/benefit tradeoffs. Enthusiastic about opportunities to collaborate with and mentor teammates to foster a supportive and growth-oriented team culture. Degree(s) in statistics, mathematics, computer science, engineering, or similar area preferred

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.

## At a glance
- Posted by the employer: Oct 28, 2026
- First seen by OpenNash: Nov 1, 2026
- Last checked: Nov 1, 2026
- Listed for: 4 days
- Location: Dublin, Ireland
- Employment type: Full-time[Apply on Mastercard’s careers site →](https://mastercard.wd1.myworkdayjobs.com/CorporateCareers/job/Dublin-Ireland/Senior-Data-Scientist_R-293021-1)

## Hiring at Mastercard
- Open jobs: 1,014
- New in the last 7 days: After two weekly collections
- Tracked since: Jul 10, 2026

[All Mastercard jobs](https://jobs.opennash.com/companies/mastercard/) · [Weekly hiring report](/reports/hiring/)

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