Temporary Computer Data Scientist Jobs in California

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build asustainableeconomy where everyone can prosper. We support a wide range of digital payments choices, making transactionssecure, 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

Data ScientistOverview:
Are you passionate about building scalable, high-performance data platforms that power personalized experiences for millions of users? Do you thrive in a fast-paced environment where innovation and collaboration drive success? Join the Loyalty group at Mastercard, where we connect anonymized transaction data with a robust advertising network to deliver highly personalized card-linked offers.
We are looking for a Senior Data Scientist who brings deep technical expertise, a strong foundation in software engineering, and a passion for solving complex data challenges. You'll work on mission-critical projects that shape the future of Mastercard's offers platform, leveraging cutting-edge technologies in Data, cloud computing, and real-time processing.
This is an exciting opportunity to work with a collaborative, agile team that values creativity, continuous learning, and delivering high-quality software at scale.
About the Role:
We are looking for a Data Scientist with a strong foundation in both data science and data engineering. This role requires someone who can not only build predictive models but also design, develop, and maintain scalable data pipelines and infrastructure. You will work cross-functionally to turn data into actionable insights and production-ready solutions.
Develop, validate, and deploy machine learning models for business use cases
Perform exploratory data analysis (EDA) to uncover trends, patterns, and insights
Apply statistical techniques to solve complex business problems
Communicate findings clearly to stakeholders using visualizations and reports
Design and run A/B tests and experiments
Build and maintain scalable data pipelines (ETL/ELT)
Work with large datasets in distributed environments
Ensure data quality, integrity, and reliability across systems
Optimize data workflows and processing performance
Partner with product, engineering, and business teams to define data-driven solutions
Translate business requirements into technical implementations
Deploy models into production and monitor their performance
Contribute to best practices in documentation, and reproducibility
All About You:
Bachelor's or Master's degree in Computer Science, Data Science, Statistics, or related field
Multiple years of professional experience in data science and/or data engineering roles
Strong programming skills in SQL and Python is required
Hands-on experience with traditional machine learning frameworks (e.g., scikit-learn, TensorFlow, PyTorch)
Experience building data pipelines using tools like Airflow and Spark
Solid understanding of statistics and probability
Key Skills:
Machine Learning & Statistical Modeling
Data Engineering & Pipeline Development
SQL & Data Manipulation
Cloud & Big Data Technologies (Spark, Hadoop)
Problem-solving and critical thinking
Strong communication skillsMastercard 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.

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 the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.

Pay Ranges

San Francisco, California: $138,000 - $221,000 USDNew York City, New York: $138,000 - $221,000 USD